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

2024; Optica Publishing Group; Volume: 32; Issue: 13 Linguagem: Inglês

10.1364/oe.515269

1094-4087

Yonghang Sun, James Salamy, Caitlin E. Murray, Brent E. Little, Sai T. Chu, Roberto Morandotti, Arnan Mitchell, David Moss, Bill Corcoran,

Semiconductor Lasers and Optical Devices

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.