Authors: Liu, L; Chang, LM; Kuang, YX; Li, ZZ; Liu, Y; Guan, H; Tan, MQ; Yu, YD; Li, ZY

PHOTONICS RESEARCH

Volume: 7 Issue: 7 Pages: 722-727 Published: JUL 1 2019 Language: English Document type: Article

DOI: 10.1364/PRJ.7.000722

Abstract:

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

Full Text: https://www.osapublishing.org/prj/abstract.cfm?uri=prj-7-7-722&origin=search