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All you need to know about optical spectrum analyzer

Thorlabs' Optical Spectrum Analyzers (OSAs) perform especially accurate spectral measurements. Compatible with fiber-coupled and loose-space mild resources, these benchtop instruments healthy a huge style of programs, inclusive of reading the spectrum of a telecom sign, resolving the Fabry-Perot modes of a gain chip, and identifying gasoline absorption strains. We offer two device sorts: the general-reason optical spectrum analyzer in dubai UAE instruments, which have a high replace charge and slight resolution, and the excessive-overall performance Redstone™ OSA305 instrument, which has a high dynamic range and excessive resolution.

 Our optical spectrum analyzers accumulate the spectrum via Fourier remodel, the use of a scanning Michelson interferometer. This approach allows a excessive-precision Wavelength Meter mode with seven good sized figures and ±1 component-in keeping with-million (ppm) spectral precision, lets in strong statistical evaluation of the obtained spectra, and presents broadband spectral measurements with each scan. A frequency-stabilized 632.9918 nm HeNe alignment laser is covered in every OSA20xC unit, that's used to make certain a spectral accuracy of ±2 ppm. The Redstone OSA305 includes a frequency-locked 1532.8323 nm reference laser, ensuing in a spectral accuracy all the way down to ±0.2 ppm.

 Thorlabs' OSA20xC spectrum analyzers are optimized to cover five different spectral levels with a spectral resolution of 7.5 GHz (0.25 cm-1) and a 30 dB optical rejection ratio. Designed for applications that require higher optical resolutions or sensitivities, the Redstone functions  detectors, which allows for measurements over a huge wavelength range with a 1.9 GHz (zero.063 cm-1) spectral resolution, in addition to a noise floor with a forty dB optical rejection ratio. For extra info at the interferometer design, please see the Design tab.

 These devices are designed to measure CW mild resources. They also work in a few programs wherein a pulsed mild source is used; information may be determined on the Pulsed Sources tab. Similarly, our OSA instruments aren't designed for packages where it is important to get better small indicators, including fluorescence detection and Raman spectroscopy. If your application would gain from expanded detection sensitivity, please refer to the Custom OSAs tab for a number of our talents.

 Optical Inputs All of Thorlabs' OSAs take delivery of FC/PC-terminated fiber patch cables and collimated unfastened-area beams up to Ø6 mm (OSA20xC) or Ø10 mm (Redstone OSA305). Details on compatibility are inside the Specs and Free-Space Coupling tabs. For wavelengths from 2 µm to 5.Five µm, we offer fluoride unmarried mode and fluoride multimode fiber patch cables. Optical Spectrum Analyzers with other fiber enter receptacles are available by way of contacting Tech Support. OSA/OCAs can be used to optimize amplifier hyperlink. There is no need to feature an OSA/OCA at every inline amplifier. For an extended-haul system, adding OSA/OCA every three to five amplifiers alongside the transmission link can offer sufficient information for system optimization. Figure 15.10 shows configurations of intermediate nodes with and with out add-drop channels. For the add-drop node (on the left), there are 4 amplifiers,  for eastbound and two for westbound. This configuration can compensate greater loss brought by the add-drop coupler and dispersion-compensating modules (DCMs).