Frequency stabilization of a hybrid-integrated InP-Si3N4 diode laser by locking to a fiber ring resonator

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Abstract

Hybrid integrated diode lasers based on low-loss Si3N4-based feedback circuits enable advanced laser performance and embedding in photonic circuits. In particular, using high-Q Si3N4 ring resonators for frequency-selective feedback provides wide spectral coverage, mode-hop free tuning and ultra-narrow intrinsic linewidth. In addition, most applications also require long-term stability, which can be provided by locking the laser frequency to external references. We present the locking of a hybrid-integrated laser to a fiber ring resonance. Via controlling the diode current or a Si3N4 phase shifter we find a maximum full-width-half-maximum linewidth reduction from 0.32 MHz to 0.06 MHz.
Original languageEnglish
Number of pages4
Publication statusPublished - 25 Nov 2021
Event25th Annual Symposium of the IEEE Photonics Benelux Chapter 2021 - University of Mons, Mons, Belgium
Duration: 25 Nov 202126 Nov 2021
https://www.aanmelder.nl/ieee-ps-benelux-2021

Conference

Conference25th Annual Symposium of the IEEE Photonics Benelux Chapter 2021
Country/TerritoryBelgium
CityMons
Period25/11/2126/11/21
Internet address

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