Open AccessSuperluminal Raman laser with enhanced cavity length sensitivity
Author(s) -
Z. Zhou,
M. Zhou,
Selim M. Shahriar
Publication year - 2019
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.029738
Subject(s) - superluminal motion , optics , raman spectroscopy , rubidium , laser , raman laser , dispersion (optics) , sensitivity (control systems) , raman scattering , materials science , raman amplification , physics , potassium , astronomy , electronic engineering , metallurgy , engineering
We demonstrate experimentally a superluminal ring laser based on optically pumped Raman gain, and a self-pumped Raman depletion for producing anomalous dispersion, employing two isotopes of rubidium. By fitting the experiment data with the theoretical model, we infer that the spectral sensitivity of the superluminal Raman laser to cavity length change is enhanced by a factor of more than a thousand, compared to a conventional laser.