Liquid Crystal Based VOA for Open Loop Applications

Lightwaves2020's liquid crystal based variable optical attenuator (VOA) is a voltage-controlled device designed specifically for power management in optical networks. The device has a dynamic range of up to 20dB attenuation and operates in the C-band, L-band or C+L band with low temperature dependence. This VOA is specially designed for the use in open loop applications.

Key Features

• Small footprint in a coaxial package
• Continuous tunning without moving parts
• Resistant to mechanical vibration
• Wide operating wavelength range
• Low PDL, WDL
• Slow tunning slope without backlash and historic
• Low temperature dependence
• Low cost

Primary Applications

• Channel balancing in DWDM systems (pre-emphasis)
• Power equalisation in optical add/drop modules and optical

cross-connects

Gain-tilt and power adjustment in EDFAs

Receiver protection