Bi-directional superluminal ring lasers without crosstalk and gain competition
Abstract
In this paper, we present the experimental observation of simultaneous bi-directional superluminal lasing in a triangular ring cavity without gain competition and crosstalk as needed for realizing a gyroscope based on the Sagnac effect. The gain spectrum for each of the lasers is tailored to be a narrow dip on top of a broad gain using two stable isotopes of Rb. Specifically, we make use of 85Rb to produce a broad gain spectrum via the optically pumped Raman gain process and 87Rb to produce a narrow absorption spectrum via the optically pump Raman depletion process. A separate gain cell is used for the laser in each direction. Inferred from the simulation, the spectral sensitivity enhancements of the clock-wise and counter-clock-wise superluminal ring lasers are ∼362 and ∼505, respectively, with the imbalance attributed to differences in pump powers.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jun 20, 2022
- Source ID
- 10.1063/5.0093164
Entities
People
- Devin J. Hileman
- Jason Bonacum
- Mohamd Selim Shahriar
- Nicholas J. Condon
- Ruoxi Zhu
- Zifan Zhou
Organizations
- Air Force Office of Scientific Research
- Air Force Research Laboratory
- Defense Security Cooperation Agency
- Northwestern University