Author(s): Li, SY (Li, Shaoyang); Zhang, JS (Zhang, Jiashun); Wang, LL (Wang, Liangliang); You, J (You, Jin); Wang, Y (Wang, Yue); Yin, XJ (Yin, Xiaojie); Chen, J (Chen, Jun); Sun, BL (Sun, Bingli); An, JM (An, Junming); Wu, YD (Wu, Yuanda)

Source: OPTICS AND LASER TECHNOLOGY Volume: 156 Article Number: 108475 DOI: 10.1016/j.optlastec.2022.108475 Published: DEC 2022

Abstract: A 20-channel 800 GHz spacing silica based arrayed waveguide grating (AWG) is designed and fabricated. We extend the wavelength allocation in IEEE 802.3bs from 8 channels to 20 channels in the O-band, which improves the transmission capacity of the chip to meet the increasing demand of network traffic. The insertion loss is less than 1.59 dB by adopting a spot-size converter (SSC). The polarization-dependent loss (PDL) is less than 0.3 dB at the center wavelength of each channel. With a flat-top of spectrum, 1 dB bandwidth is more than 2.8 nm, and the adjacent crosstalk is less than-20 dB. The transmission of 28.9 Gb/s NRZ and 57.8 Gb/s PAM4 signals in a single channel are successfully realized.

Accession Number: WOS:000860741400001

ISSN: 0030-3992

eISSN: 1879-2545

Full Text: https://www.sciencedirect.com/science/article/pii/S0030399222006314?via%3Dihub