Linewidth enhancement factor in a microcavity Brillouin laser
نویسندگان
چکیده
منابع مشابه
Dual-microcavity narrow-linewidth Brillouin laser
Ultralow-noise yet tunable lasers are a revolutionary tool in precision spectroscopy, displacement measurements at the standard quantum limit, and the development of advanced optical atomic clocks. Further applications include lidar, coherent communications, frequency synthesis, and precision sensors of strain, motion, and temperature. While all applications benefit from lower frequency noise, ...
متن کاملDual-microcavity narrow-linewidth Brillouin laser: supplementary material
supplementary material WILLIAM LOH, ADAM A. S. GREEN, FRED N. BAYNES, DANIEL C. COLE, FRANKLYN J. QUINLAN, HANSUEK LEE, KERRY J. VAHALA, SCOTT B. PAPP, SCOTT A. DIDDAMS, Time and Frequency Division, National Institute of Standards and Technology, Boulder, CO, 80305, USA T. J. Watson Laboratory of Applied Physics, California Institute of Technology, Pasadena, CA, 91125, USA *Corresponding author...
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Recently, a high efficiency, narrow-linewidth, chip-based stimulated Brillouin laser (SBL) was demonstrated using an ultra-high-Q, silica-on-silicon resonator. In this work, this novel laser is more fully characterized. The Schawlow Townes linewidth formula for Brillouin laser operation is derived and compared to linewidth data, and the fitting is used to measure the mechanical thermal quanta c...
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We present, to the best of our knowledge, the first demonstration of a narrow linewidth, waveguide-based Brillouin laser that is enabled by large Brillouin gain of a chalcogenide chip. The waveguides are equipped with vertical tapers for low-loss coupling. Due to optical feedback for the Stokes wave, the lasing threshold is reduced to 360 mW, which is five times lower than the calculated single...
متن کاملSpectral linewidth in microcavity surface-emitting lasers
The Schawlow-Townes expression for the laser linewidth predicts a substantial cw linewidth enhancement in microcavity lasers, in which a large fraction of spontaneous emission is directed into the lasing mode, in contrast with conventional semiconductor lasers, in which the lasing mode accepts only a tiny fraction of spontaneously emitted photons. By performing a theoretical analysis of rigorou...
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ژورنال
عنوان ژورنال: Optica
سال: 2020
ISSN: 2334-2536
DOI: 10.1364/optica.394311