Author(s): Wang, WY (Wang, Wenyu); Zhao, ZP (Zhao, Zeping); Han, XY (Han, Xueyan); Wang, YH (Wang, Yuehui); An, JM (An, Junming); Liu, JG (Liu, Jianguo)

Source: IEEE PHOTONICS JOURNAL Volume: 14 Issue: 6 Article Number: 6656406 DOI: 10.1109/JPHOT.2022.3197198 Published: DEC 2022

Abstract: A 16-channel photodetector array receiving module with good performance as low loss, fine tuning and high reliability is manufactured in our laboratory. The whole module was consisted with a silica arrayed waveguide grating chip (AWG), a thermo-optical type variable optical attenuator (VOA), a photodetectors (PDs) array with direct-current (DC) bias circuit, all components were integrated via 3D package method. In the article, the structure parameters of V branch and edge couplers were optimized for lower loss. In order to realize excellent tuning ability, Titanium was selected as heating material for precisely tuning and its electric attenuation range could reach at a level more than 20dB. Periodically segmented waveguide coupler designed in passive chips could minimize coupling loss less than 04 d B/coupling. The high-performance receiving module could effectively improve detection quality and significantly enlarge capacity in communication system.

Accession Number: WOS:000868319500007

ISSN: 1943-0655

eISSN: 1943-0647

Full Text: https://ieeexplore.ieee.org/document/9852297/