Journal article
Soliton Burst and Bi-Directional Switching in the Platform with Positive Thermal-Refractive Coefficient Using an Auxiliary Laser
Department of Photonics Engineering, Technical University of Denmark1
Nanophotonic Devices, Department of Photonics Engineering, Technical University of Denmark2
Centre of Excellence for Silicon Photonics for Optical Communications, Centers, Technical University of Denmark3
Huazhong University of Science and Technology4
University of Chinese Academy of Sciences5
Ultra-fast Optical Communication, Department of Photonics Engineering, Technical University of Denmark6
City University of Hong Kong7
CAS - Xi'an Institute of Optics and Precision Mechanics8
Dissipative Kerr solitons in optical microresonators enable the generation of stable ultrashort pulses and phase-locked frequency combs, leading to their widespread applications. For traditional platforms with positive thermal-refractive coefficient, strong thermal effect increases the difficulties of soliton triggering and prohibits the deterministic control of soliton number.
Here, using an auxiliary laser to tune thermal effect, soliton burst and bi-directional switching are demonstrated in high-index doped silica glass platform. First, by varying the parameters of the auxiliary laser, the thermal effect tuning of the microresonator is studied with different thermal compensation states achieved, leading to distinct soliton switching features.
Especially, the solitons burst and bi-directional switch in over-compensated state. The corresponding process is recorded in real time based on a temporal magnification system, uncovering transient dynamics from continuum background noise to soliton formation. Finally, the deterministic generation of solitons is enabled with controllable soliton number spanning from 1 to 21.
The present work provides insight into soliton dynamics and enables soliton generation on demand with a large range of soliton numbers inside a single device.
Language: | English |
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Year: | 2021 |
Pages: | 2100264 |
ISSN: | 18638899 and 18638880 |
Types: | Journal article |
DOI: | 10.1002/lpor.202100264 |
ORCIDs: | Zhao, Yanjing , 0000-0001-8513-3328 and Hu, Hao |