Bi-directional superluminal ring lasers without crosstalk and gain competition
| Autor: | Zifan Zhou, Ruoxi Zhu, Nicholas J. Condon, Devin J. Hileman, Jason Bonacum, Selim M. Shahriar |
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| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Applied Physics Letters. 120:251105 |
| ISSN: | 1077-3118 0003-6951 |
| DOI: | 10.1063/5.0093164 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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