Abstract

We demonstrate narrow-linewidth-stimulated Brillouin lasers at 1064 nm from ultra-high-$Q$ silica wedge disk resonators on silicon. Fundamental Schawlow–Townes frequency noise of the laser is on the order of $0.1{\mathrm{Hz}}^2/\mathrm{Hz}$. The technical noise spectrum of the on-chip Brillouin laser is close to the thermodynamic noise limit of the resonator (thermorefractive noise) and is comparable to that of ultra-narrow-linewidth Nd:YAG lasers. The relative intensity noise of the Brillouin laser also is reduced by using an intensity-stabilized pump laser. Finally, low-noise microwave synthesis up to 32 GHz is demonstrated by heterodyne of first and third Brillouin Stokes lines from a single resonator.

© 2014 Optical Society of America

High-power and low-intensity noise laser at 1064  nm

Germain Guiraud, Nicholas Traynor, and Giorgio Santarelli
Opt. Lett. 41(17) 4040-4043 (2016)

Fast-tuning, low-noise, compact Brillouin/erbium fiber laser

Mo Chen, Zhou Meng, Xiaobo Tu, and Yichi Zhang
Opt. Lett. 39(3) 689-692 (2014)

Experimental investigation of relative intensity noise in Brillouin fiber ring lasers for microwave photonics applications

Stéphanie Molin, Ghaya Baili, Mehdi Alouini, Daniel Dolfi, and Jean-Pierre Huignard
Opt. Lett. 33(15) 1681-1683 (2008)

Characterization of a high coherence, Brillouin microcavity laser on silicon

Jiang Li, Hansuek Lee, Tong Chen, and Kerry J. Vahala
Opt. Express 20(18) 20170-20180 (2012)

Efficient single-mode Brillouin fiber laser for low-noise optical carrier reduction of microwave signals

S. Norcia, S. Tonda-Goldstein, D. Dolfi, J.-P. Huignard, and R. Frey
Opt. Lett. 28(20) 1888-1890 (2003)