Optical sensor head offers uncertainty of ±1.8%

30th January 2018
Posted By : Mick Elliott
Optical sensor head offers uncertainty of ±1.8%

The AQ2200-232 is a high-performance optical sensor head which joins Yokogawa’s existing family of optical power meters modules (AQ2200-215 and AQ2200-221) in the company’s modular optical test platform. The sensor head is used in conjunction with the dual-port AQ2200-202 interface module.

 

 It is targeted at making accurate measurements in challenging applications such as power testing of laser chips in free space light, I/L curve measurement of laser-diode modules and multicore fibre measurements (with an MPO connector adapter).

Key features are a 5mm diameter cooled detector, ideal for measurements in free space, a wavelength measurement range from 800 to 1700nm, and a power measurement range of +15 to -90dBm.

It also offers uncertainty of ±1.8%, high stability with constant-temperature control, and a wide single-range power range of 30dB.

“With the launch of the new optical sensor head, Yokogawa is expanding its multi-application modular optical test platform in line with market demands for higher-speed automatic testing of optical devices in free space, which helps to reduce testing time - and hence costs - compared to fibre-coupled tests.”, says Terry Marrinan, Vice-President Sales & Marketing, Yokogawa Europe & South-East Asia: “Post-production testing of laser diodes needs to be fast because the increasing market demand requires higher quantities and cheaper products, and the fastest way to measure their output is by measuring it in free space to eliminate the time involved in connecting and disconnecting the optical fibre to each laser produced.”

Until now sensors currently available on the market were not sensitive enough to obtain high-precision test results.


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