Optical DPSK Demodulator Polarization Beam Combiner and digital data modulation

and digital data modulation

C- and/or L-band EDFA

Freely Selectable Signal and Pump Wavelength

cable TV network

Optical DPSK Demodulator Polarization Beam Combiner and digital data modulationOptical DPSK demodulator is a Delay Line Interferometer (DLI), converts phase modulation to amplitude modulation over the entire C+L band in support of data transmission rates of 2. 5, 10 or 40 Gb s. The DPSK demodulator is based on a patented free space optical design, which is compact, athermal and polarization independent. FEATURES Athermal Design C+L band Coverage by A Single Device Low Temperature dependent Frequency Shift (TDFS) Low Polarization