TY - JOUR
T1 - Thermal Management in AlGaAs-On-Insulator Microresonators
T2 - Enabling and Extending Soliton Comb Generation
AU - Zhao, Yanjing
AU - Ye, Chaochao
AU - Liu, Yang
AU - Zhou, Yueguang
AU - Yvind, Kresten
AU - Pu, Minhao
N1 - Publisher Copyright:
© 2025 The Author(s). Laser & Photonics Reviews published by Wiley-VCH GmbH.
PY - 2025
Y1 - 2025
N2 - Dissipative Kerr solitons offer a promising approach for integrated frequency comb sources. Although aluminum gallium arsenide (AlGaAs) exhibits ultrahigh nonlinearity, its strong thermo-optic effect raises significant challenges for stable soliton generation. Triggerring solitons necessitates either cryogenic cooling or resonator engineering, imposing stringent requirements on operational environments, comb spacing, and bandwidth. In this work, thermal management in AlGaAs-on-insulator microresonators is addressed using an auxiliary laser. This approach effectively suppresses the adverse thermal resonance shifts, thus enabling room-temperature soliton comb generation. Simultaneously, the residual thermal effects can be leveraged to expand the soliton existence range up to 37 GHz without active feedback. The scheme imposes no limitations on resonator parameters, facilitating the observation of near-zero-dispersion solitons. This broadens the exploration horizons on the AlGaAsOI platform. The extended soliton existence range ensures a stable and robust soliton operation, which is crucial for fully exploiting the ultra-high effective nonlinearity and high optical quality factors exhibited by this platform. This advancement is poised to accelerate the practical deployment of AlGaAs frequency comb sources.
AB - Dissipative Kerr solitons offer a promising approach for integrated frequency comb sources. Although aluminum gallium arsenide (AlGaAs) exhibits ultrahigh nonlinearity, its strong thermo-optic effect raises significant challenges for stable soliton generation. Triggerring solitons necessitates either cryogenic cooling or resonator engineering, imposing stringent requirements on operational environments, comb spacing, and bandwidth. In this work, thermal management in AlGaAs-on-insulator microresonators is addressed using an auxiliary laser. This approach effectively suppresses the adverse thermal resonance shifts, thus enabling room-temperature soliton comb generation. Simultaneously, the residual thermal effects can be leveraged to expand the soliton existence range up to 37 GHz without active feedback. The scheme imposes no limitations on resonator parameters, facilitating the observation of near-zero-dispersion solitons. This broadens the exploration horizons on the AlGaAsOI platform. The extended soliton existence range ensures a stable and robust soliton operation, which is crucial for fully exploiting the ultra-high effective nonlinearity and high optical quality factors exhibited by this platform. This advancement is poised to accelerate the practical deployment of AlGaAs frequency comb sources.
KW - AlGaAs-on-insulator
KW - Dissipative kerr solitons
KW - Micro-combs
KW - Thermal compensation
U2 - 10.1002/lpor.202401223
DO - 10.1002/lpor.202401223
M3 - Journal article
AN - SCOPUS:85214782716
SN - 1863-8880
JO - Laser and Photonics Reviews
JF - Laser and Photonics Reviews
M1 - 2401223
ER -