Plug-in modules

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Yokogawa has extended its range of plug-in modules for use with its AQ2200 series multi-application optical test system by introducing two new tunable light source modules that allow the test wavelength to be varied to suit the user’s application.

The new one channel AQ2200-131 and two channel AQ2200-132 allow the user to tune the test wavelength to one of the preset dense waveform division multiplexing grid wavelengths. As a result, users require only one module to cover a variety of test requirements, with resulting economies in cost, space and lead time. Target applications include the testing of optical fibre amplifiers and digital coherent systems, especially those involving distributed feedback laser diodes. Two versions of each module are available for different applications.. The standard type, targeted at optical fibre amplifier testing, is tunable to one of the 100, 50 or 25GHz grids, and offers a line width of 3MHz. The advanced type, aimed at digital coherent system testing, is tunable to an arbitrary grid frequency with 100MHz minimum steps, and has a narrow line width of 100kHz plus stimulated Brouillon scattering suppression.