Self-injection locked laser via a hollow-core fiber Fabry-Perot resonator
Self-injection locked laser via a hollow-core fiber Fabry-Perot resonator
In a hollow-core fiber (HCF), light propagates through an air/vacuum core rather than a solid material, resulting in a low thermo-optic coefficient and ability to handle high powers. Here, we demonstrate a laser locked to a hollow-core fiber reference, which thanks to the low HCF thermal sensitivity, shows long-term stability an order of magnitude better than compact commercially available low-noise lasers. The laser frequency variation within ±600 kHz was measured over 50 h. The stability of our proof-of-concept laser is ensured via a strong selfinjection ratio of -15 dB, enabled by the high-power handling and low loss of the hollow-core fiber's resonator. Moreover, our results show appealing performance parameters, including a fractional frequency stability of 4 × 10-13 at 1 s averaging time and a Lorentzian component of the linewidth of 0.2 Hz.
Self-injection laser, fabry-perot resonators, hollow core fibre
611-617
Feng, Zitong
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Ding, Meng
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Komanec, Matej
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Zvanovec, Stanislav
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Zhong, Ailing
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Poletti, Francesco
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Marra, Giuseppe
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Slavík, Radan
2591726a-ecc0-4d1a-8e1d-4d0fd8da8f7d
24 February 2025
Feng, Zitong
21760dcd-7979-4733-bc84-dea53c64a81c
Ding, Meng
4ce864fb-eb5c-47d6-8902-7b3785a162d7
Komanec, Matej
be991afd-3cb0-458a-a7c8-4557051e2bcf
Zvanovec, Stanislav
037bcfba-8cc7-4f6f-8226-72d29fe7e636
Zhong, Ailing
4dd4add1-12d2-4e78-828b-a60d2b57ff83
Poletti, Francesco
9adcef99-5558-4644-96d7-ce24b5897491
Marra, Giuseppe
d76bb79b-27dd-4231-bdbc-d8c92cce88ea
Slavík, Radan
2591726a-ecc0-4d1a-8e1d-4d0fd8da8f7d
Feng, Zitong, Ding, Meng, Komanec, Matej, Zvanovec, Stanislav, Zhong, Ailing, Poletti, Francesco, Marra, Giuseppe and Slavík, Radan
(2025)
Self-injection locked laser via a hollow-core fiber Fabry-Perot resonator.
Photonics Research, 13 (3), .
(doi:10.1364/PRJ.530157).
Abstract
In a hollow-core fiber (HCF), light propagates through an air/vacuum core rather than a solid material, resulting in a low thermo-optic coefficient and ability to handle high powers. Here, we demonstrate a laser locked to a hollow-core fiber reference, which thanks to the low HCF thermal sensitivity, shows long-term stability an order of magnitude better than compact commercially available low-noise lasers. The laser frequency variation within ±600 kHz was measured over 50 h. The stability of our proof-of-concept laser is ensured via a strong selfinjection ratio of -15 dB, enabled by the high-power handling and low loss of the hollow-core fiber's resonator. Moreover, our results show appealing performance parameters, including a fractional frequency stability of 4 × 10-13 at 1 s averaging time and a Lorentzian component of the linewidth of 0.2 Hz.
Text
prj-13-3-611
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More information
Accepted/In Press date: 16 December 2024
Published date: 24 February 2025
Keywords:
Self-injection laser, fabry-perot resonators, hollow core fibre
Identifiers
Local EPrints ID: 507397
URI: http://eprints.soton.ac.uk/id/eprint/507397
ISSN: 2327-9125
PURE UUID: 3b9f24f4-c4d3-4664-9778-4181dcf4a932
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Date deposited: 08 Dec 2025 18:13
Last modified: 09 Dec 2025 02:43
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Contributors
Author:
Zitong Feng
Author:
Meng Ding
Author:
Matej Komanec
Author:
Stanislav Zvanovec
Author:
Ailing Zhong
Author:
Francesco Poletti
Author:
Giuseppe Marra
Author:
Radan Slavík
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