Photonics Research, 2020, 8 (9): 09001484, Published Online: Aug. 25, 2020
Chalcogenide glass photonic integration for improved 2 μm optical interconnection Download: 646次
Abstract
In this work, on-chip chalcogenide glass photonic integrations with several fundamental photonic building blocks are designed and fabricated based on the platform for improved 2 μm optical interconnection, achieving a broadened wavelength bandwidth and improved fabrication tolerance. A 600 nm thick strip waveguide has low propagation loss of 1.447 dB/cm at 2 μm. Broadband vertical coupling is realized by a grating coupler with 4.3 dB coupling loss. A Bragg grating filter, power splitter, Mach–Zander interferometer, and mode converter for on-chip mode division multiplexing (MDM) are also reported at 2 μm with reliable performances. Finally, a record high MDM optical interconnection capacity of at 2 μm is experimentally demonstrated based on the proposed chip, drawing promising prospects for future photonic integration and high-speed interconnection at the 2 μm waveband.
Weihong Shen, Pingyang Zeng, Zelin Yang, Di Xia, Jiangbing Du, Bin Zhang, Ke Xu, Zuyuan He, Zhaohui Li. Chalcogenide glass photonic integration for improved 2 μm optical interconnection[J]. Photonics Research, 2020, 8(9): 09001484.