Enhancing laser temperature stability by passive self-injection locking to a microring resonator

Author:

Sun Yonghang1ORCID,Salamy JamesORCID,Murray Caitlin E.1,Little Brent E.2,Chu Sai T.3ORCID,Morandotti Roberto4ORCID,Mitchell Arnan56ORCID,Moss David J.15ORCID,Corcoran Bill1ORCID

Affiliation:

1. Centre of Excellence in Optical Microcombs for Breakthrough Science

2. QXP Inc.

3. City University of Hong Kong

4. INRS-EMT

5. RMIT University

6. Swinburne University of Technology

Abstract

We show a thermally stable self-injection DFB laser lock to a microring resonator system, increasing the range of temperature for which a laser stays within 100 MHz of the target frequency by a factor of 100. By including amplification in the feedback loop, the per-laser power dedicated to this locking was reduced. We further added a 2.2 km fiber spool to explore the remote locking performance of the system.

Funder

Australian Research Council

Publisher

Optica Publishing Group

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