Broadband temperature-insensitivity of dispersion-engineered waveguides and resonators

Lijuan Xu; Liuqing He; Yuhao Guo; Guifang Li; Lin Zhang

doi:10.1117/12.2291333

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15 February 2018 Broadband temperature-insensitivity of dispersion-engineered waveguides and resonators

Lijuan Xu, Liuqing He, Yuhao Guo, Guifang Li, Lin Zhang

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Proceedings Volume 10516, Nonlinear Frequency Generation and Conversion: Materials and Devices XVII; 105161G (2018) https://doi.org/10.1117/12.2291333
Event: SPIE LASE, 2018, San Francisco, California, United States

Abstract

Photonic circuits suffer from 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 by using materials with a negative TOC at a single wavelength, which are not suitable for WDM devices and wideband nonlinear devices. Here, we propose a waveguide structure with temperature-insensitivity over a bandwidth of 780 nm (1280 to 2060 nm) with an ultra-small effective TOC within ±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.

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Lijuan Xu, Liuqing He, Yuhao Guo, Guifang Li, and Lin Zhang "Broadband temperature-insensitivity of dispersion-engineered waveguides and resonators", Proc. SPIE 10516, Nonlinear Frequency Generation and Conversion: Materials and Devices XVII, 105161G (15 February 2018); https://doi.org/10.1117/12.2291333

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