Ultravariable Optical Attenuator

Kotura Inc.Request Info

MONTEREY PARK, Calif., Aug 20, 2012 — Expanding the applications for silicon photonics, Kotura Inc. has announced an ultravariable optical attenuator (VOA) in a pluggable small form package (SFP). It integrates an optical power monitor function to provide feedback to the VOA in a control loop design.

Based upon silicon photonics, the company’s ultra VOAs have typical response times of <1 μs. The high speed enables functions such as signal modulation, transient suppression and fast power control in wavelength division multiplexing agile networks. The VOAs have no moving parts.

The 20-pin SFP package means that designers can better use board space by moving the attenuation function to the front panel. The VOA works over the C-band range of 1525 to 1570 nm and supports an attenuation range of zero to 25 dB. It implements the control loop and feedback circuit using a 5 percent tap and photodetector.

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Photonics.com
Aug 2012

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Ultravariable Optical Attenuator