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  • Optical Spectrum Analyzer
Apr 2012
Thorlabs Inc.Request Info
NEWTON, N.J., April 23, 2012 — Thorlabs has released the first product in a planned line of optical spectrum analyzers (OSAs). While many commonly available models are grating-based monochromators, this version uses a Fourier transform OSA with a scanning Michelson interferometer configuration. The result is a device that operates as both a full-featured OSA and a high-precision wavelength meter.

It features a 1000- to 2500-nm wavelength measurement range, spectral resolution of 7.5 GHz when used as an OSA, and wavelength meter resolution of 0.2 pm. The input aperture accepts FC/PC-terminated fibers, suitable for interfacing with the company’s tunable laser kits, pigtailed laser diodes and fiber collimators.

The instrument is supplied with a laptop computer preloaded with a software package for acquiring, inspecting, manipulating and analyzing spectra and interferograms. A customizable graphical user interface makes it easy to identify spectral features, to measure optical output power over a wavelength range, and to track many other parameters as a function of time.

The software provides drivers and libraries to operate the OSA using C, C++, Java or other programming languages, and a set of LabView routines is provided to assist with developing custom applications in that dynamic environment.


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wavelength meter
A device that measures the wavelength of an electromagnetic wave.
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