--- _id: '14749' abstract: - lang: eng text: We unveil a powerful method for the stabilization of laser injection locking based on sensing variations in the output beam ellipticity of an optically seeded laser. The effect arises due to an interference between the seeding beam and the injected laser output. We demonstrate the method for a commercial semiconductor laser without the need for any internal changes to the readily operational injection locked laser system that was used. The method can also be used to increase the mode-hop free tuning range of lasers, and has the potential to fill a void in the low-noise laser industry. article_processing_charge: No article_type: original author: - first_name: Umang full_name: Mishra, Umang id: 4328fa4c-f128-11eb-9611-c107b0fe4d51 last_name: Mishra - first_name: Vyacheslav full_name: Li, Vyacheslav id: 3A4FAA92-F248-11E8-B48F-1D18A9856A87 last_name: Li - first_name: Sebastian full_name: Wald, Sebastian id: 133F200A-B015-11E9-AD41-0EDAE5697425 last_name: Wald - first_name: Sofya full_name: Agafonova, Sofya id: 09501ff6-dca7-11ea-a8ae-b3e0b9166e80 last_name: Agafonova orcid: 0000-0003-0582-2946 - first_name: Fritz R full_name: Diorico, Fritz R id: 2E054C4C-F248-11E8-B48F-1D18A9856A87 last_name: Diorico - first_name: Onur full_name: Hosten, Onur id: 4C02D85E-F248-11E8-B48F-1D18A9856A87 last_name: Hosten orcid: 0000-0002-2031-204X citation: ama: Mishra U, Li V, Wald S, Agafonova S, Diorico FR, Hosten O. Monitoring and active stabilization of laser injection locking using beam ellipticity. Optics Letters. 2023;48(15):3973-3976. doi:10.1364/ol.495553 apa: Mishra, U., Li, V., Wald, S., Agafonova, S., Diorico, F. R., & Hosten, O. (2023). Monitoring and active stabilization of laser injection locking using beam ellipticity. Optics Letters. Optica Publishing Group. https://doi.org/10.1364/ol.495553 chicago: Mishra, Umang, Vyacheslav Li, Sebastian Wald, Sofya Agafonova, Fritz R Diorico, and Onur Hosten. “Monitoring and Active Stabilization of Laser Injection Locking Using Beam Ellipticity.” Optics Letters. Optica Publishing Group, 2023. https://doi.org/10.1364/ol.495553. ieee: U. Mishra, V. Li, S. Wald, S. Agafonova, F. R. Diorico, and O. Hosten, “Monitoring and active stabilization of laser injection locking using beam ellipticity,” Optics Letters, vol. 48, no. 15. Optica Publishing Group, pp. 3973–3976, 2023. ista: Mishra U, Li V, Wald S, Agafonova S, Diorico FR, Hosten O. 2023. Monitoring and active stabilization of laser injection locking using beam ellipticity. Optics Letters. 48(15), 3973–3976. mla: Mishra, Umang, et al. “Monitoring and Active Stabilization of Laser Injection Locking Using Beam Ellipticity.” Optics Letters, vol. 48, no. 15, Optica Publishing Group, 2023, pp. 3973–76, doi:10.1364/ol.495553. short: U. Mishra, V. Li, S. Wald, S. Agafonova, F.R. Diorico, O. Hosten, Optics Letters 48 (2023) 3973–3976. date_created: 2024-01-08T13:01:46Z date_published: 2023-07-21T00:00:00Z date_updated: 2024-01-09T08:09:32Z day: '21' department: - _id: OnHo doi: 10.1364/ol.495553 external_id: arxiv: - '2212.01266' intvolume: ' 48' issue: '15' keyword: - Atomic and Molecular Physics - and Optics language: - iso: eng month: '07' oa_version: Preprint page: 3973-3976 publication: Optics Letters publication_identifier: eissn: - 1539-4794 issn: - 0146-9592 publication_status: published publisher: Optica Publishing Group quality_controlled: '1' scopus_import: '1' status: public title: Monitoring and active stabilization of laser injection locking using beam ellipticity type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 48 year: '2023' ... --- _id: '11438' abstract: - lang: eng text: 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. acknowledgement: This work was supported by IST Austria. The authors thank Yueheng Shi for technical contributions. article_number: '054031' article_processing_charge: No article_type: original author: - first_name: Vyacheslav full_name: Li, Vyacheslav id: 3A4FAA92-F248-11E8-B48F-1D18A9856A87 last_name: Li - first_name: Fritz R full_name: Diorico, Fritz R id: 2E054C4C-F248-11E8-B48F-1D18A9856A87 last_name: Diorico - first_name: Onur full_name: Hosten, Onur id: 4C02D85E-F248-11E8-B48F-1D18A9856A87 last_name: Hosten orcid: 0000-0002-2031-204X citation: ama: 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:10.1103/physrevapplied.17.054031 apa: 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. https://doi.org/10.1103/physrevapplied.17.054031 chicago: 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. https://doi.org/10.1103/physrevapplied.17.054031. ieee: 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. ista: 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. mla: 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:10.1103/physrevapplied.17.054031. short: V. Li, F.R. Diorico, O. Hosten, Physical Review Applied 17 (2022). date_created: 2022-06-07T08:07:59Z date_published: 2022-05-19T00:00:00Z date_updated: 2023-08-03T07:18:34Z day: '19' department: - _id: GradSch - _id: OnHo doi: 10.1103/physrevapplied.17.054031 external_id: arxiv: - '2111.13194' isi: - '000880670300001' intvolume: ' 17' isi: 1 issue: '5' keyword: - General Physics and Astronomy language: - iso: eng main_file_link: - open_access: '1' url: ' https://doi.org/10.48550/arXiv.2111.13194' month: '05' oa: 1 oa_version: Preprint publication: Physical Review Applied publication_identifier: issn: - 2331-7019 publication_status: published publisher: American Physical Society quality_controlled: '1' status: public title: Laser frequency-offset locking at 10-Hz-level instability using hybrid electronic filters type: journal_article user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8 volume: 17 year: '2022' ...