High Precision Programmable Optical Attenuator

The High Precision Series VOA is an ideal variable optical attenuator providing near-perfect performances. With a built-in position sensor, once the VOA’s attenuation value is set, it will remain at the value regardless of environmental variations. This series VOAs overcome the instability and drift issue associated with conventional VOAs. We produce three types to cover most application scenarios. The thermal actuated MEMS VOAs feature low loss of <0.7dB, high extinction up to 70dB, linear response, compact size, and low cost. The piezo-actuated MEMS VOAs uniquely offer unmatched attributes in the industry, including ultra-low insertion loss of 0.2dB, ultra-broadband from 300 to 2100nm, ultra-high setting/repeating precision of 0.1dB up to 50dB, high optical power handling > 1W, and linear response. It is available with all types of fibers of 125 μm outer diameter. We further produce high-speed feedback control VOAs with a faster response time of about 1 μs.