#LGX CWDM Mux and DeMux

[cwdm-module-blog]

DK Photonics is capable of manufacturing CWDM Mux-Demux products providing up to 16-channels or even 18-channel multiplexing on a single fiber. The package includes ABS box package, LGX CWDM Mux and DeMux package and 19” 1U rackmount. http://www.dkphotonics.com/product/8-Channel-CWDM.html  

[beasttrust]

Uses for an optical isolator

Rotators Difference between an Optical Circulator & Isolator & RotatorĪn optical circulator is used to route the incoming light signals from port 1 to port 2 in a way that if some of the emitted light is reflected back to the circulator, it doesn’t exit from port 1 but from port 3. This rotator is used for amplitude modulation of light and is an integral part of optical isolators and optical circulators. What is an optical rotator?Īn optical rotator is typically an in-line Faraday rotator that is designed to rotate the polarization of the input light by 45 degrees. This is what makes it possible to achieve higher isolation. Hence, it adds to the total of 90 degrees when light travels in the forward direction and then the same in the backward direction. It happens because of the change in the relative magnetic field direction, positive one way, and negative the other way. It means that the rotation is positive 45 degrees in the forward direction and negative 45 degrees in the reverse direction. The polarization rotation caused by the Faraday rotator always remains in the same relative direction. Its main component is the Faraday rotator which ensures non-reciprocal rotation while maintaining linear polarization. What is an optical isolator?Īlso known as an optical diode, an optical isolator is an optical passive component that allows the light to travel in only one direction. While some circulators are three-port devices, there are also four-port circulators. In short, it is designed such that the light coming from one port exits from the next port. What is an optical circulator?Īn optical circulator is a high-performance light-wave component that is designed to route the incoming light signals from Port 1 to Port 2 and the incoming light signals from Port 2 to Port 3. Circulator & Isolator & RotatorĪs we are discussing specifically optical passive components, you will learn here about optical circulators, optical isolators, and optical rotators rather than their electronic counterparts. So, if you are curious to know about these little yet important optical passive components, read the blog till the end. We will first talk about what these components exactly are and then share what makes them different from each other. Today, we will discuss three different optical passive components, namely circulator & isolator & rotator. What is a polarization maintaining filter coupler?.A Concise Selection Guide for In-Line Polarizers.What is the importance of 80um PM fiber components?.The Growing Demand for PM Fiber Components in 2023 and Beyond.Why Should Polarization Maintaining Filter Coupler Feature High Extinction Ratio?.Polarizing Beam combiners/splitters (2).High Power Faraday Rotator and Isolator (1).(6+1)X1 Pump and Signal Combiner 2+1X1 Pump Combiner 8CH CWDM Module 16CH CWDM Module 19" rack mount chassis CWDM 1060nm Cladding Power Stripper 1064nm Band-pass Filter 1064nm Components 1064nm Fiber Collimator 1064nm High Power Isolator ABS plastic box Cladding Power Stripper Collimator Compact CWDM Module CWDM CWDM Multiplexer CWDM Mux/Demux CWDM MUX/DEMUX Module DWDM DWDM Multiplexer fiber optica connector fiber optic coupler FTTX Fused Coupler fused wdm FWDM High Power Fused Coupler High power isolator Isolator LGX CWDM Module Mini Size CWDM Mini Size Fused WDM Multimode High Power Isolator OADM optical circulator optical coupler Optical fiber communication optical isolator PLC Splitter pm circulator PM Components pm isolator pump combiner Pump Laser Protector WDM DK Categories

[chelseatang]

5G era is coming, 🎉🎉🎉🎉🎉🎉🎉🎉ADTEK offers CMDM/DWDM options for you. Mux and Demux with LGX /ABS ox cassette/ 19” 1U Rack mount/ OSA. Low insertion loss. More information you can contact me. 👉🏼👉🏼 🤳WhatsApp: +86 17799252394 📱Skype: tangjingyu0329 📭Email: sales6@adtek-fiber.com #CWDM #DWDM #Telecommunication #Multiplexing #Cables #Wavelength（在 Shenzhen Adtek Technology Co., Ltd） https://www.instagram.com/p/CAZOWM8nut_/?igshid=jaad2mounzi5

[gigalightoptics-blog]

CWDM and DWDM Comparison: What’s the Difference?

DWDM (Dense Wavelength Division Multiplexing) is undoubtedly the popular technology in today's optical fiber applications. However, because of its expensive price, many operators without enough money are quite hesitated to use it. Can we use wavelength division multiplexing at a lower cost? Faced with this demand, CWDM (Coarse Wavelength Division Multiplexing) came into being. And in the post, we will take an introduction on the main difference between CWDM and DWDM and which one is your better choice.

CWDM, as the name suggests, is a DWDM close relative. When comparing CWDM vs. DWDM, their differences are mainly two points as follows:

1. CWDM carrier channel spacing is wide, so the same fiber can only reuse 5 to 6 or so wavelength. This is why we call “Dense” and “Coarse”.

2. CWDM modulates laser by using non-cooling laser, but DWDM is used to cooling laser. The cooled laser is thermally tuned and the non-cooled laser is electronically tuned. Since the temperature distribution is very uneven in a wide wavelength range, the temperature tuning is difficult and costly to achieve. CWDM avoids this difficulty, therefore the cost is significantly reduced, the entire cost of CWDM system is only 30% of DWDM.

CWDM provides very high access bandwidth for low cost, and is suitable for popular network structures such as point-to-point, Ethernet, SONET ring, especially for short distance, high bandwidth, and point-intensive communication applications. Building communication between buildings or buildings. In particular, it is worth mentioning that CWDM and PON (passive optical network) with the use. PON is an inexpensive, point-to-multipoint optical fiber communication method. By combining with CWDM, each individual wavelength channel can be used as the virtual optical link of PON to realize the broadband data transmission between the central node and multiple distributed nodes.

At present, several companies are introducing CWDM-related products. Here we mainly introduce CWDM Mux/Demux and DWDM Mux/Demux.

(1). CWDM Mux/Demux Module:

CWDM Mux and CWDM Demux are designed to multiplex multiple CWDM channels into one or two fibers. The core of CWDM Module application is the passive MUX DEMUX unit. The common configuration is 1×4, 1×8, 1×16 channels. Available in 19″ Rack Mount or LGX module package, optional wide band port is available to multiplex with CWDM Channels wavelength.

(2). DWDM Mux/Demux Module:

DWDM Mux and DWDM DeMux are designed to multiplex multiple DWDM channels into one or two fibers. The common configuration is 4, 8, 16 and 40 channels. These modules passively multiplex the optical signal outputs from 4 or more electronic devices, send them over a single optical fiber and then de-multiplex the signals into separate, distinct signals for input into electronic devices at the other end of the fiber optic link.

However, CWDM is the product of cost and performance compromise; inevitably there are some limitations on performance. Industry experts pointed out that CWDM currently exist below the following four points: First, CWDM in a single fiber to support the number of multiplex wavelengths less, resulting in higher cost of expansion in the future; second, multiplexers, multiplexers, etc. The cost of the equipment should be further reduced, these devices can not only DWDM corresponding equipment, a simple modification; Third, CWDM does not apply to metropolitan area networks, metro nodes between the shorter distance, operators in the CWDM equipment expansion on the money can Used to lay more fiber optic cable, get better results; Fourth, CWDM has not yet formed a standard.

From the CWDM and DWDM comparison above, we can know both the benefits and drawbacks of CWDM and DWDM.  If the transmission distance is short and cost is low, then CWDM may be your first choice. On the contrary, you can consider DWDM. For more information about CWDM and DWDM, you can visit: Gigalight.

[dkphotonics]

10-Year Forecast – Fiber Optic Sensors

According to ElectroniCast, the combined use of Distributed and Point fiber optics sensors are forecast to reach $5.98 Billion in 2026…

ElectroniCast Consultants, a leading market/technology forecast consultancy, today announced the release of their market forecast and analysis of the global consumption of Fiber Optic Sensors.

According to the study, the combined use of Distributed and Point (local) fiber optics sensors reached $3.38 Billion last year (2016), and the worldwide value is forecast to reach $5.98 Billion in 10-years (2026). Market forecast data in this study report refers to consumption (use) for a particular calendar year; therefore, this data is not cumulative data.

Both the American region and the EMEA region held similar market share in the overall (distributed- and point-types) fiber optic sensor value last year. The Europe, Middle East, Africa region (EMEA) held a very slight lead in relative market (value) share last year; however, the Asia Pacific region (APAC) is projected to take-over the leadership position during the forecast period.

The EMEA region is forecast to have a strong role in the use of distributed fiber optic systems, driven by the region’s use of systems in aviation, as well as in the

Petrochemical, Natural Resources, Energy/Utility application categories.

In terms of fiber optic point sensors, the American region is forecast to maintain the market share lead throughout the 1st-half of the forecast period (2016-2021), mostly led by the use of Fiber Optic Gyros (FOGs) in the Military/Aerospace application category. The consumption values are based on the end-user application and the end-user region.

FOGs held a 65 percent market share of the worldwide Point fiber optic sensor consumption value in 2016. “All regions, thanks mainly to increases in the use in aviation and military critical mission applications (Unmanned Aerial Vehicle/UAV and missile guidance, navigation, north finding/tracking, robotics, aviation and aeronautics and other) are forecast to show impressive increase consumption quantity (volumes) and values for the FOG systems,” said Stephen Montgomery, Director of the Fiber Optics Components group at ElectroniCast Consultants.

The market forecast of the Distributed Sensors is segmented by the following applications:

Manufacturing Process/Factory

Civil Engineering/Construction (buildings, bridges, tunnels, etc)

Military/Aerospace/Security

Petrochemical/Energy/Utilities/Natural Resources

Biomedical/Science

The Fiber Optic Point Sensor Forecast further segmented by the following sensing/measuring quantity (measurand) types:

Mechanical Strain

Temperature

Pressure

Chemical, Gas, Liquid

Vibration, Acoustic, Seismic

Displacement, Acceleration, Proximity

Electric, Current and Magnetic Field - Fiber Optic Sensors

Rotation (such as Fiber Optic Gyroscopes: FOGs)

“ElectroniCast counts each Point fiber optic sensor as one unit; however, the volume/quantity (number of units) of Distributed fiber optic sensors is based on a complete optical fiber line/link, which we classify as a system. Since a distributed optical fiber line (system) may have 100s of sensing elements in a continuous-line, it is important to note that we count all of those sensing elements in a distributed system as one (system) unit – only. Distributed fiber optic sensor systems involve the optic fiber with the sensors embedded with the fiber; also included is the optoelectronic transmitter/receiver, connectors, optical fiber, cable (fiber jacket) the sensor elements, and other related components,” Montgomery added.

According to ElectroniCast, the combined use of Distributed and Point fiber optics sensors reached $3.38 Billion in 2016…

Continuous Distributed and Point Fiber Optic Sensor

Global Consumption ($3.38 Billion in 2016)

Source: ElectroniCast Consultants

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DK Photonics – www.dkphotonics.com  specializes in designing and manufacturing of high quality optical passive components mainly for telecommunication, fiber sensor and fiber laser applications,such as 1064nm High Power Isolator,1064nm Components, PM Components, (2+1)x1 Pump Combiner,Pump Laser Protector,Mini-size CWDM,100GHz DWDM,Optical Circulator,PM Circulator,PM Isolator,Fused Coupler,Mini Size Fused WDM.

[cwdm-module-blog]

: CWDM Mux and Demux Modules are available in 4, 8 and 16 channel configurations. These modules passively multiplex the optical signal outputs from 4 or more electronic devices, send them over a single optical fiber and then de-multiplex the signals into separate, distinct signals for input into electronic devices at the other end of the fiber optic link.

[dkphotonics]

Global Fiber Optic Components Market 2017-2021

Fiber optic components are an integral part of the fiber optic infrastructure that is deployed across countries as well as continents to meet the increasing demand for the fiber optic communication. The global fiber optic communication market majorly consists of two segments that are fiber optic cables and fiber optic components. Fiber optic cables use light as the carrier to transfer information between two places. They are used in fiber optic communication wherein they transmit these signals at long distances. They support higher bandwidth as compared to copper cables, which makes them a preferred choice for next-generation communication technologies such as 4G and 5G. Optical signals can resist electromagnetic interference. This results in a lower attenuation of the signal, and it becomes less prone to noise. The analysts forecast the global fiber optic components market to grow at a CAGR of 10.37% during the period 2017-2021. Commenting on the report, an analyst from the research team said: "The latest trend gaining momentum in the market is increasing long-haul and ultralong-haul networks. Long-haul optic networks are used for the transmission of information over optic fiber cables for long distances. Long-haul optics are used to connect countries and cities across the globe. Most of these networks range from hundreds to thousands of kilometers. They have mostly migrated to 10 Gbps-based DWDM systems with 32 channels or more." According to the report, one of the major drivers for this market is Increasing migration from copper to optic fiber. The major driver for the growth of the fiber optic components market is the migration from copper cabling to optic fiber. Copper fiber uses electrical impulses to send information across long distances. This leads to large attenuations and distortion of data. Copper wires can easily be tapped, which can lead to security issues and challenges. Optic fibers are inexpensive, lightweight, and non-flammable, and can carry higher bandwidths than copper wires. Further, the report states that one of the major factors hindering the growth of this market is High price of components and their installation. Fiber optic components are priced much higher than their copper counterparts. For instance, the price of a desktop computer network interface card for 10 or 100 Mbps Ethernet on Cat 5 ranges between $60 and $80. Whereas, the price of a fiber network interface card is $100-$400. The cost of fibers varies widely as they have numerous cable and connector styles. Each connector is priced from $1 to $15. The installation cost of a fiber optic line can go up to $30,000 for an entire building. If an ISP chooses to opt for an optic fiber connection, they would need to dig out the entire copper installation wiring and replace it with optical fibers. GoogleFiber, a provider of fiber to the premises, estimated that the cost of wiring a fiber network into a major American city would cost approximately $1 billion. This is an extremely expensive process as ISPs opt for upgrades rather than dig up the entire line.

 Tags: CWDM Multiplexer, DWDM Multiplexer,19" rack mount chassis CWDM, CWDM MUX/DEMUX Module, LGX CWDM Module,8CH CWDM Module, 16CH CWDM Module, 100GHz DWDM Mux/Demux, 200GHz DWDM Mux/Demux

DK Photonics – www.dkphotonics.com  specializes in designing and manufacturing of high quality optical passive components mainly for telecommunication, fiber sensor and fiber laser applications,such as 1064nm High Power Isolator,1064nm Components, PM Components, (2+1)x1 Pump Combiner,Pump Laser Protector,Mini-size CWDM,100GHz DWDM,Optical Circulator,PM Circulator,PM Isolator,Fused Coupler,Mini Size Fused WDM.

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[dkphotonics]

CWDM Mux & DeMux - Features and Applications

The CWDM are by and large in view of thin coat channel innovation which is the type of item fall under the WDM class. There arrived in a total scope of Class-8 CWDM Mux-Demux and also OADM that stands for Optical Add Drop Multiplexer units with a specific end goal to meet a wide range of necessities and system arrangements.

Likewise, it has across the board applications that require the Channel CWDM. Some of them include: Gigabit and 10G Ethernet, Fiber Channel, ATM, ESCON, in Metro total, SDH/SONET, and CATV and so forth. Presently, we should talk about the accompanying components and utilizations of Channel CWDM that settle on it an ideal decision for all. The CWDM Mux / Demux items give up to 16-channel or even 18-channel Multiplexing on a solitary fiber. Standard CWDM Mux/Demux bundle sort include: ABS box bundle, LGX pakcage and 19" 1U rackmount.

Highlights

The loss of insertion quality creates from the presentation of a gadget into the optical fiber is by and large lesser in CWDM than alternate gadgets; this produces short inclusion costs.

Channel-8 CWDM is dependably very steady and solid in the meantime. Not at all like every other sort of WDM class, the Channel CWDM has higher dependability.

The CWDM items are typically Epoxy free on optical way; this prompts better working and Epoxy free condition while the execution.

In CWDM, the channel segregation is very high. This expanded seclusion prompts better and successful outcomes.

Applications

WDM and Access Organize: As these channel sorts are the piece of WDM class, these have their best application in the WDM and also Access systems.

Line Observing: These items have their incredible use in line checking. This guarantees there is no crash on a similar line of some other range or frequency.

Cellular Application: The CWDM channel arrangements have their utilizations and applications additionally in the Cellular area, and advances as the unequaled panacea for some different parts and ventures.

Telecommunication: The broadcast communications devours Channel-8 CWDM at an incredible rate. It needs to utilize these items for the straightforward transmission of signs and utilization of the filaments for the same.

Aside from every one of the elements and applications, the capacity of CWDM is additionally to unravel the deficiency of fiber and straightforward transmission of exchange while lessening the charges of system building. This is the motivation behind why the Channel CWDM and LGX CWDM Mux and DeMux Module have a matter of extraordinary heights in the realm of fiber optics, flag transmission and multiplexing and so forth.

[cwdm-module-blog]

Our CWDM Mux/Demux products provide up to 8-channel, 16-channel or even 18-channel Multiplexing on a single fiber.

[dkphotonics]

Understanding the Use of Optical Fused Coupler, MUX & DEMUX WDM

In today’s high tech world, there is a desperate need for bandwidth.  The development of WDM (wavelength division multiplexing) technology has greatly helped us to expand the network capacity over a single fiber. A fiber optic coupler is a device used in fiber optic systems with input fibers (single or more) and output fibers (single or more). It is different from WDM devices.

The main benefits of Optical fused couplers are as follows:-

Combining: This Fiber Optic Couplers combine two signals and yield single output.

Splitting: The Splitters supply two outputs by using the single optical signal.

On the other hand, WDM multiplexer and demultiplexer divide the different wavelength fiber light into different channels. WDM is further divided into CWDM (coarse wavelength division multiplexing) and DWDM (dense wavelength division multiplexing). Generally, the WDM systems operate on 9µm single-mode fiber optical cables although it is not necessary.

If we specifically talk about the CWDM method, CWDM multiplexes multiple optical carrier signals on a single optical fiber. It uses different wavelengths/colors of laser light combined in a MUX in order to carry different signals. Mux/DeMux is one of the most important components of CWDM systems.

The LGX CWDM Mux and DeMux module comes with a 8 Channel (dual fiber) with 1U 19 Rack Mount Box that utilizes thin film coating technology and proprietary design of non-flux metal bonding micro optics packaging. It has been designed to provide optical networking support over a grid of CWDM optical wavelengths in high-speed Fibre Channel and Ethernet communication for metropolitan area networks (MAN).

The optical component is easy to operate with a reliable low-maintenance design. The MUX is passive and it does not use power supplies or electronics. It is capable of multiplexing and demultiplexing ITU-T G.694.2 wavelengths up to 8 channels in increments of 20nm from 1270 nm to 1610 nm. “ITU” specifies the exact center of 8CH CWDM Mux and Demux dual fiber 1U 19 Rack Mount Box wavelength such as 1531nm, 1591nm, 1611nm, etc.

The 8 Channel CWDM Mux and Demux dual fiber 1U 19 Rack Mount Box are protocol and rate transparent. They allow different services up to 10Gbps transported across the same fiber link. It works seamlessly with transceivers to optimize the link length, signal integrity, and overall network cost. It can be incorporated into a single rack-mount solution for a better design, power, and space efficiency.

As per the working principle, MUX and DEMUX can be used in various fields, such as communication systems, computer memories, telephone networks, etc. It is a cost saving method of connecting a multiplexer and a demultiplexer together over a single channel.

How to get the Optical Fused Couplers, Mux and DeMux WDM?

There are several leading companies in market that are considered masters at the designing and manufacturing of optical passive components for fiber laser, fiber sensor, and fiber optic telecommunication applications. One can contact these companies to avail high quality opticalcouplers, Mux and DeMux at affordable rates.

Contact a supplier today and get them.

[cwdm-module-blog]

We provide good quality 8-Channel CWDM at low price. For more info please visit  http://www.dkphotonics.com/

[dkphotonics]

WDM And The Modules Based On It: The Need Of The Hour

In fiber-optic world of communication, wavelength-division multiplexing or WDM is an innovation which multiplexes various optical transporter signals onto a solitary optical fiber by utilizing distinctive wavelengths, that is the shades of the laser light. This system empowers bidirectional interchanges in more than one strand of fiber, and also increases the limits and domains of it. The term wavelength-division multiplexing is generally connected to an optical transporter, which is normally depicted by its wavelength, though recurrence division multiplexing is commonly applied to a radio bearer which is all the more of a frequently portrayer by recurrence. This is a simple convention since wavelength and recurrence convey a similar data.

How a WDM system works:

A WDM framework utilizes a multiplexer at the transmitter to combine the few signs and a demultiplexer at the collector to part them separated. Hence, WDM Mux and DeMux Modules are made to be used with the correct kind of fiber as it is conceivable to have a gadget that does both all the while, and can work as an optical add-drop multiplexer. The optical filtering gadgets utilized have ordinarily been etalons or to say, stable solid-state single-frequency Fabry–Pérot interferometers in the form of a thin-film-covered optical glass.

Need of WDM Multiplexing:

Since the physical fiber optic cabling is costly to actualize for every single company independently, its ability development by utilizing a Wave Division Multiplexing (WDM) is the need of the hour. WDM innovation was created to extend limits of single fiber systems can give. A WDM framework utilizes a Multiplexer at the transmitter to join a few wavelengths together; thus each one conveys diverse flag and signals via a demultiplexer at the recipient to make them separated. Both Mux and Demux are latent parts of the circuit, as their requirement of power is nil.

Types of WDM available:

These days there are a few sorts of institutionalized WDM in availibility:

General WDM, for example, 980/1550 WDM, 1310/1550 WDM.

CWDM incorporates CWDM mux/demux module and CWDM OADM module. The normal setup of CWDM mux/demux module is 2CH, 4CH, 8CH, 16CH, 18CH CWDM mux/demux module. Single fiber or double fiber association for CWDM Mux/demux are accessible.

DWDM incorporates 50GHz, 100GHz, 200GHz DWDM mux/demux module and DWDM OADM module. The normal arrangement is 2CH, 4CH, 8CH, 16 CH, 32CH, 40CH channels.

They are accessible as Plastic ABS module tape, 19'' rack mountable box or standard LGX box. What's more, regardless of what sort of connectors, as FC, ST, SC, LC and so on, all is available on DK Photonics, and they additionally can blend connector on one gadget. DK Photonics Technology Limited is one of the main organizations in outlining and assembling of fantastic optical inactive parts primarily for media transmission, fiber sensor and fiber laser applications. Headquarter and manufacturing plant is situated in Shenzhen of China. Savvy, best quality and best administration are forever their objective. So if you have any requirement regarding the WDM or any of the devises based on it, DK Photonics is the reliable and trusted brand!