Abstract

Dissipative Kerr-microresonator soliton combs (hereafter called soliton combs) are promising to realize chip-scale integration of full soliton comb systems providing high precision, broad spectral coverage, and a coherent link to the micro/mm/THz domain with diverse applications coming on line all the time. However, the large soliton comb spacing hampers some applications. For example, for spectroscopic applications, there are simply not enough comb lines available to sufficiently cover almost any relevant absorption features. Here, we overcome this limitation by scanning the comb mode spacing by employing Pound–Drever–Hall locking and a microheater on the microresonator, showing continuous scanning of the soliton comb modes across nearly the full free-spectral range of the microresonator without losing soliton operation, while spectral features with a bandwidth as small as 5 MHz are resolved.

© 2020 Optical Society of America

Frequency-scanned microresonator soliton comb with tracking of the frequency of all comb modes

Naoya Kuse, Gabriele Navickaite, Michael Geiselmann, Takeshi Yasui, and Kaoru Minoshima
Opt. Lett. 46(14) 3400-3403 (2021)

Thermal control of a Kerr microresonator soliton comb via an optical sideband

Kenji Nishimoto, Kaoru Minoshima, Takeshi Yasui, and Naoya Kuse
Opt. Lett. 47(2) 281-284 (2022)

Generation of a microresonator soliton comb via current modulation of a DFB laser

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OSA Continuum 3(11) 3218-3224 (2020)

Enhancing the long-term stability of dissipative Kerr soliton microcomb

Yong Geng, Wenwen Cui, Jingwen Sun, Xinxin Chen, Xiaojie Yin, Guangwei Deng, Qiang Zhou, and Heng Zhou
Opt. Lett. 45(18) 5073-5076 (2020)

300 GHz wave generation based on a Kerr microresonator frequency comb stabilized to a low noise microwave reference

Tomohiro Tetsumoto, Fumiya Ayano, Mark Yeo, Julian Webber, Tadao Nagatsuma, and Antoine Rolland
Opt. Lett. 45(16) 4377-4380 (2020)