Laser frequency-offset locking at 10-Hz-level instability using hybrid electronic filters

article Laser frequency-offset locking at 10-Hz-level instability using hybrid electronic filters published yes Vyacheslav Li author 3A4FAA92-F248-11E8-B48F-1D18A9856A87 Fritz R Diorico author 2E054C4C-F248-11E8-B48F-1D18A9856A870000-0002-4947-8924 Onur Hosten author 4C02D85E-F248-11E8-B48F-1D18A9856A870000-0002-2031-204X GradSch department OnHo department Lasers with well-controlled relative frequencies are indispensable for many applications in science and technology. We present a frequency-offset locking method for lasers based on beat-frequency discrimination utilizing hybrid electronic LC filters. The method is specifically designed for decoupling the tightness of the lock from the broadness of its capture range. The presented demonstration locks two free-running diode lasers at 780 nm with a 5.5-GHz offset. It displays an offset frequency instability below 55 Hz for time scales in excess of 1000 s and a minimum of 12 Hz at 10-s averaging. The performance is complemented with a 190-MHz lock-capture range, a tuning range of up to 1 GHz, and a frequency ramp agility of 200kHz/μs. American Physical Society2022 eng General Physics and Astronomy Physical Review Applied 2331-7019 2111.13194 00088067030000110.1103/physrevapplied.17.054031 175 https://research-explorer.ista.ac.at/record/17225 Li V, Diorico FR, Hosten O. 2022. Laser frequency-offset locking at 10-Hz-level instability using hybrid electronic filters. Physical Review Applied. 17(5), 054031. Li V, Diorico FR, Hosten O. Laser frequency-offset locking at 10-Hz-level instability using hybrid electronic filters. Physical Review Applied. 2022;17(5). doi:<a href="https://doi.org/10.1103/physrevapplied.17.054031">10.1103/physrevapplied.17.054031</a> Li, Vyacheslav, Fritz R Diorico, and Onur Hosten. “Laser Frequency-Offset Locking at 10-Hz-Level Instability Using Hybrid Electronic Filters.” Physical Review Applied. American Physical Society, 2022. <a href="https://doi.org/10.1103/physrevapplied.17.054031">https://doi.org/10.1103/physrevapplied.17.054031</a>. Li, Vyacheslav, et al. “Laser Frequency-Offset Locking at 10-Hz-Level Instability Using Hybrid Electronic Filters.” Physical Review Applied, vol. 17, no. 5, 054031, American Physical Society, 2022, doi:<a href="https://doi.org/10.1103/physrevapplied.17.054031">10.1103/physrevapplied.17.054031</a>. Li, V., Diorico, F. R., & Hosten, O. (2022). Laser frequency-offset locking at 10-Hz-level instability using hybrid electronic filters. Physical Review Applied. American Physical Society. <a href="https://doi.org/10.1103/physrevapplied.17.054031">https://doi.org/10.1103/physrevapplied.17.054031</a> V. Li, F.R. Diorico, O. Hosten, Physical Review Applied 17 (2022). V. Li, F. R. Diorico, and O. Hosten, “Laser frequency-offset locking at 10-Hz-level instability using hybrid electronic filters,” Physical Review Applied, vol. 17, no. 5. American Physical Society, 2022. 114382022-06-07T08:07:59Z2026-07-08T08:50:57Z