Ultra-precise optical-frequency stabilization with heterogeneous III–V/Si lasers
Abstract
The demand for low-noise, continuous-wave, frequency-tunable lasers based on semiconductor integrated photonics has advanced in support of numerous applications. In particular, an important goal is to achieve a narrow spectral linewidth, commensurate with bulk-optic or fiber-optic laser platforms. Here we report on laser-frequency-stabilization experiments with a heterogeneously integrated III/V-Si widely tunable laser and a high-finesse, thermal-noise-limited photonic resonator. This hybrid architecture offers a chip-scale optical-frequency reference with an integrated linewidth of 60 Hz and a fractional frequency stability of 2.5 × 10 − 13 at 1 s integration time. We explore the potential for stabilization with respect to a resonator with lower thermal noise by characterizing laser-noise contributions such as residual amplitude modulation and photodetection noise. Widely tunable, compact and integrated, cost-effective, stable, and narrow-linewidth lasers are envisioned for use in various fields, including communication, spectroscopy, and metrology.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Sep 15, 2020
- Source ID
- 10.1364/ol.398845
Entities
People
- Chao Xiang
- David Kinghorn
- Duanni Huang
- Joel Guo
- John E. Bowers
- Jonathan D. Peters
- Lin Chang
- Liron Stern
- Minh A. Tran
- Scott B. Papp
- Wei Zhang
Organizations
- Defense Advanced Research Projects Agency
- National Institute of Standards and Technology