Broadband athermal devices and their applications

Lijuan Xu; Yuhao Guo; Jing Wang; Liuqing He; Henan Liu; Guifang Li; Lin Zhang

doi:10.1117/12.2504099

5 November 2018 Broadband athermal devices and their applications

Lijuan Xu, Yuhao Guo, Jing Wang, Liuqing He, Henan Liu, Guifang Li, Lin Zhang

Proceedings Volume 10814, Optoelectronic Devices and Integration VII; 108140I (2018) https://doi.org/10.1117/12.2504099
Event: SPIE/COS Photonics Asia, 2018, Beijing, China

Abstract

Photonic integrated circuits suffer from a thermal drift of device performance, which is a key obstacle to the development of commercial optoelectronic products. Temperature-insensitive integrated waveguides and resonators have been demonstrated at a single wavelength, using materials with a negative TOC, which are not suitable for WDM devices and wideband nonlinear devices. Here, we propose two waveguides to realize the generation of broadband athermal features. For one of them, the temperature-insensitivity over a bandwidth of 780 nm (1280 to 2060 nm) with an ultra-small effective-TOC within is ±1×10^-6/K. Uniquely, the waveguide has small anomalous dispersion (from 66 to 329 ps/nm/km) over the same band and is suitable for frequency comb generation without being affected by intra-cavity thermal dynamics. We also show another waveguide design with an effective-TOC variation of ±1×10^-6/K over a bandwidth of 1060 nm, from 1220 to 2280 nm. The obtained dispersion varies from -232 to -502 ps/nm/km over the same band, which can be used in nonlinear devices.

Citation Download Citation

Lijuan Xu, Yuhao Guo, Jing Wang, Liuqing He, Henan Liu, Guifang Li, and Lin Zhang "Broadband athermal devices and their applications", Proc. SPIE 10814, Optoelectronic Devices and Integration VII, 108140I (5 November 2018); https://doi.org/10.1117/12.2504099

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