Abstract

We report the first demonstration of a microresonator-based tunable mode-locked frequency comb source. We achieve a mode-hop-free tuning range of 16 GHz by simultaneously tuning both the pump laser and the cavity resonance while keeping the system in a multi-soliton mode-locked state. The optical spectrum spans 25204125  cm1 (2.425–3.970 μm) pumping at 3508  cm1 (2.850 μm) in a silicon microresonator with a comb line spacing of 4.23  cm1 (127 GHz). Our scanning technique can be used to increase the effective resolution of the microresonator-based comb spectroscopy. As a proof-of-principle demonstration, we record the absorption spectrum of the rovibrational transitions of the υ3 and υ2+(υ4+υ5)+0 bands of acetylene. We measure absorption features as narrow as 0.21  cm1 (6.4 GHz) full width at half-maximum at a frequency sampling step of 80 MHz.

© 2017 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Continuous scanning of a dissipative Kerr-microresonator soliton comb for broadband, high-resolution spectroscopy

Naoya Kuse, Tomohiro Tetsumoto, Gabriele Navickaite, Michael Geiselmann, and Martin E. Fermann
Opt. Lett. 45(4) 927-930 (2020)

Soliton dual frequency combs in crystalline microresonators

N. G. Pavlov, G. Lihachev, S. Koptyaev, E. Lucas, M. Karpov, N. M. Kondratiev, I. A. Bilenko, T. J. Kippenberg, and M. L. Gorodetsky
Opt. Lett. 42(3) 514-517 (2017)

Microfluidic mid-infrared spectroscopy via microresonator-based dual-comb source

Mengjie Yu, Yoshitomo Okawachi, Austin G. Griffith, Michal Lipson, and Alexander L. Gaeta
Opt. Lett. 44(17) 4259-4262 (2019)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (5)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription