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Variable optical attenuators(VOAs)


VOAs are designed to control the optical power in a fiber optics network. Casix VOA family is based on micro-electro-mechanical system (MEMS) technology. Highly repeatable optical attenuation is achieved through an electrostatic rotatable MEMS mirror changing light coupling between input/output fiber (ESVOA), or a thermally-actuated MEMS shutter moving in/out of the optical path (Matt VOA).


Feature:

    •     Low IL, WDL and PDL; large Attenuation Range

    •     High Repeatability and Resolution

    •     Compact Size and Rugged Construction

    •     Available in Normally Closed or Normally Open States

    •     Telcordia GR-1209, 1221 Qualified

    •     RoHS Compliant


Application:

Power management in optical network, ROADM power balancing, dynamic gain control in DWDM/CWDM networks, power balance between optical amplifier stages.

 



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