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The authors propose a compact non-mechanical variable attenuator based on silica-based planar lightwave circuits (PLC). The fabricated variable attenuator achieves 20 dB attenuation with a polarisation sensitivity of < 1 dB, a wavelength range over 20 nm, and rise and fall times < 400 µs.
Inspec keywords: optical waveguide components; wavelength division multiplexing; waveguide attenuators; optical repeaters; optical planar waveguides; light polarisation
Other keywords:
Subjects: Integrated optics; Optical waveguides; Optical communication