Journal
PHOTONICS RESEARCH
Volume 7, Issue 7, Pages 722-727Publisher
OPTICAL SOC AMER
DOI: 10.1364/PRJ.7.000722
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Funding
- National Key Research and Development Plan of China [2016YFB0402502]
- National Natural Science Foundation of China (NSFC) [61804148]
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We demonstrate a low-cost hybrid integrated and compact 100 GBaud four-lane coarse wavelength division multiplexing (CWDM) receiver optical sub-assembly (ROSA) based on an arrayed waveguide grating de-multiplexer in the O band. To achieve the horizontal light coupling between the planar light-wave circuit (PLC) based arrayed waveguide grating de-multiplexer and photodetector array, a 42 degrees polished facet is applied for total reflection. A flexible printed circuit with high-frequency coplanar waveguides is used for a power supply of trans-impedance amplifier and signal transmission. The fabricated CWDM ROSA module, whose size is 18 mm x 22 mm x6 mm, shows a 3 dB bandwidth of 21.2, 18.4, 19.6, and 19.3 GHz, respectively, in each lane. The overall symbol error rates are at a magnitude of 10(-7) for 25 GBaud four-level pulse amplitude modulation (PAM-4) transmission with an average input optical power of 5 dBm. (C) 2019 Chinese Laser Press
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