Published October 15, 2021
| public
Journal Article
Reaching fiber-laser coherence in integrated photonics
Abstract
We self-injection-lock a diode laser to a 1.41 m long, ultra-high Q integrated resonator. The hybrid integrated laser reaches a frequency noise floor of 0.006Hz²/Hz at 4 MHz offset, corresponding to a Lorentzian linewidth below 40 mHz—a record among semiconductor lasers. It also exhibits exceptional stability at low-offset frequencies, with frequency noise of 200Hz²/Hz at 100 Hz offset. Such performance, realized in a system comprised entirely of integrated photonic chips, marks a milestone in the development of integrated photonics; and, for the first time, to the best of our knowledge, exceeds the frequency noise performance of commercially available, high-performance fiber lasers.
Additional Information
© 2021 Optical Society of America. Received 5 August 2021; revised 24 September 2021; accepted 26 September 2021; posted 28 September 2021 (Doc. ID 439720); published 13 October 2021. The authors thank Yaakov Shevy and Reginald Lee from Orbits Lightwave for supplying the EthernalTM fiber laser. Funding: DARPA LUMOS (HR001-20-2-0044); Anello Photonics. The authors declare no conflicts of interest. Data Availability: Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.Additional details
- Eprint ID
- 111770
- DOI
- 10.1364/ol.439720
- Resolver ID
- CaltechAUTHORS:20211105-175602817
- HR001-20-2-0044
- Defense Advanced Research Projects Agency (DARPA)
- Anello Photonics
- Created
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2021-11-05Created from EPrint's datestamp field
- Updated
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2021-11-05Created from EPrint's last_modified field