Dual-laser self-injection locking to an integrated microresonator
arXiv:2201.02130 · doi:10.1364/OE.454687
Abstract
Diode laser self-injection locking (SIL) to a whispering gallery mode of a high quality factor resonator is a widely used method for laser linewidth narrowing and high-frequency noise suppression. SIL has already been used for the demonstration of ultra-low-noise photonic microwave oscillators and soliton microcomb generation and has a wide range of possible applications. Up to date, SIL was demonstrated only with a single laser. However, multi-frequency and narrow-linewidth laser sources are in high demand for modern telecommunication systems, quantum technologies, and microwave photonics. Here we experimentally demonstrate the dual-laser SIL of two multifrequency laser diodes to different modes of an integrated SiN microresonator. Simultaneous spectrum collapse of both lasers, as well as linewidth narrowing and high-frequency noise suppression , as well as strong nonlinear interaction of the two fields with each other, are observed. Locking both lasers to the same mode results in a simultaneous frequency and phase stabilization and coherent addition of their outputs. Additionally, we provide a comprehensive dual-SIL theory and investigate the influence of lasers on each other caused by nonlinear effects in the microresonator.
References in corpus (24)
- Temporal solitons in optical microresonators
- Ultrafast optical ranging using microresonator soliton frequency combs
- Massively parallel coherent laser ranging using soliton microcombs
- Soliton Microcomb Range Measurement
- Hertz-linewidth semiconductor lasers using CMOS-ready ultra-high- microresonators
- Quantum circuits with many photons on a programmable nanophotonic chip
- Nanophotonic soliton-based microwave synthesizers
- High-yield wafer-scale fabrication of ultralow-loss, dispersion-engineered silicon nitride photonic circuits
- Photonic Damascene Process for Integrated High-Q Microresonator Based Nonlinear Photonics
- Sub-Hz line width diode lasers by stabilization to vibrationally and thermally compensated ULE Fabry-Perot cavities
- Searching for Exoplanets Using a Microresonator Astrocomb
- Electrically pumped photonic integrated soliton microcomb
- Narrow linewidth lasing and soliton Kerr-microcombs with ordinary laser diodes
- Dynamics of soliton self-injection locking in a photonic chip-based microresonator
- Near-degenerate quadrature-squeezed vacuum generation on a silicon-nitride chip
- Broadband quadrature-squeezed vacuum and nonclassical photon number correlations from a nanophotonic device
- Platicon microcomb generation using laser self-injection locking
- Nanophotonic spin-glass for realization of a coherent Ising machine
- Hybrid integrated semiconductor lasers with silicon nitride feedback circuits
- Dual-pumped degenerate Kerr oscillator in a silicon nitride microresonator
- Optimization of laser stabilization via self-injection locking to WGM microresonator
- Quantum coherence between two atoms beyond Q=10^15
- Numerical study of solitonic pulse generation in the self-injection locking regime at normal and anomalous group velocity dispersion
- Microresonator and Laser Parameters Definition via Self-Injection Locking