Frequency stabilization of dual-mode microchip laser by means of beat frequency stabilization
| Autor: | Masayoshi Watanabe, Satoshi Sunada, Iyon Titok Sugiarto, Masaharu Hyodo |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Quantum optics
Physics business.industry Resolution (electron density) Dual mode Physics::Optics Laser oscillation 02 engineering and technology Microchip laser 01 natural sciences Atomic and Molecular Physics and Optics 010309 optics 020210 optoelectronics & photonics Optics Negative feedback 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Miniaturization Frequency stabilization business |
| Zdroj: | Optical Review. 27:98-107 |
| ISSN: | 1349-9432 1340-6000 |
| DOI: | 10.1007/s10043-019-00571-x |
| Popis: | The stabilization of the laser oscillation frequency of a dual-mode microchip laser was demonstrated by stabilizing the beat frequency generated by the two simultaneously oscillating longitudinal modes. In the experiment, a beat frequency of 101 GHz was stabilized to ± 50 kHz using negative feedback control. As a result, the fluctuation of the laser oscillation frequency was finally stabilized to ± 50 MHz or less within the resolution of the measurement instrument with an estimated short-term fluctuation of ± 3.3 MHz. Furthermore, using this technique, the initial drift of the laser oscillation frequency was significantly reduced, and the linear sweep operation of the laser oscillation frequency was successfully demonstrated by linearly sweeping the beat frequency over 30 MHz while maintaining locking. Our technique is essentially robust and suitable for the miniaturization of the system in the future. |
| Databáze: | OpenAIRE |
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