40 GHz Integrated High-speed Coherent Photodetector
The CPDV1200R-GM coherent photodetector device consists of an integrated polarization beam splitter and four balanced photodiodes pairs, monolithically integrated with optical 90° hybrids. The photodetector is fully differential, optical front-end suited for up to 64 GBaud polarization diversity x-QAM measurement applications, and features a high common mode rejection ratio. The optical 90° hybrids demodulate the I/Q incident signal for each respective polarization state utilizing external reference oscillator laser sources. The mixing products are detected by pin-photodiodes and the signal is available via GPPO® compatible connectors.