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Strong-feedback regime of self-injection locking and external cavity laserстатья
- Авторы: Kondratiev Nikita M., Galiev Ramzil R., Gorelov Ilya K., Shitikov Artem E., Lobanov Valery E.
- Журнал: Proceedings of SPIE - The International Society for Optical Engineering
- Том: 12141
- Год издания: 2022
- Издательство: SPIE, the International Society for Optical Engineering
- Местоположение издательства: Bellingham, WA, United States
- Первая страница: 1
- Последняя страница: 8
- DOI: 10.1117/12.2621209
- Аннотация: Realization of the coupling of the laser diode to an external reflector may provide efficient suppression of thephase noises and significant stabilization of the laser source. Locking a semiconductor laser to high-quality-factormicroresonator was shown to result in a laser linewidth narrowing to sub-Hz level. The straightforward way toget better stabilization and wider locking band is to increase the feedback level. However, most of the theoriesused to describe the self-injection locking effect assume the weak feedback from the external reflector. Herewe develop the more complete theory of the laser – resonant reflector interaction that allows to describe thiseffect for the high feedback level as well. We define different possible regimes taking place at different feedbacklevels (including the so-called external cavity laser regime) and study applicability domains of the previous andproposed models. We show that existing model of the self-injection locking to whispering-gallery mode resonatoris a consequence of the considered model in the low-feedback regime. Finally, we check the model in high-feedbacklimit experimentally and show a good correspondence with the theory.
- Добавил в систему: Горелов Илья Кириллович