Self-injection locking of the gain-switched laser diode
| Autor: | Shitikov, Artem E., Lobanov, Valery E., Kondratiev, Nikita M., Voloshin, Andrey S., Lonshakov, Evgeny A., Bilenko, Igor A. |
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| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Phys. Rev. Applied 15, 064066 (2021) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevApplied.15.064066 |
| Popis: | We experimentally observed self-injection locking regime of the gain-switched laser to high-Q optical microresonator. We revealed that comb generated by the gain-switched laser experiences a dramatic reduce of comb teeth linewidths in this regime. We demonstrated the Lorentzian linewidth of the comb teeth of sub-kHz scale as narrow as for non-switched self-injection locked laser. Such setup allows generation of high-contrast electrically-tunable optical frequency combs with tunable comb line spacing in a wide range from 10 kHz up to 10 GHz. The characteristics of the generated combs were studied for various modulation parameters - modulation frequency and amplitude, and for parameters, defining the efficiency of the self-injection locking - locking phase, coupling efficiency, pump frequency detuning. Comment: Physical Review Applied |
| Databáze: | arXiv |
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