Different-Mode Power Splitters for Optical Testing of Three-Channel and Dual-Mode Waveguide Crossing
Year: 2024
Type: article
Abstract: We study that the different-mode (waveguide-connected) power splitter [(W)PS] can provide different-mode testing points for the optical testing. With the PS or WPS providing two different-mode testing points, the measured insertion losses (ILs) of the three-channel and dual-mode waveguide crossing (WC) for both the fundamental transverse electric (TE 0 ) and TE 1 modes are less than 1.8 dB or 1.9 dB from 1540 nm to 1560 nm. At the same time, the crosstalks (CTs) are lower than −17.4 dB or −18.2 dB. The consistent test results indicate the accuracy of the (W)PS-based testing circuit. Additionally, combining the tunable tap couplers, the (W)PS can provide multiple testing points with different modes and different transmittances.
Source: Photonic Sensors
Authors: Hansi Ma, Te Du, Xinpeng Jiang, Zhaojian Zhang, Xin He, Huan Chen, Yang Yu, Zhenfu Zhang, Yunxin Han, Junbo Yang, Yuanxi Peng
Language: English
Topic: Photonic and Optical Devices
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4402880694