206 MHz fully stabilized all-PM dispersion-managed figure-9 fiber laser comb

Abstract High-repetition-rate optical frequency combs are useful for precision spectroscopy because of their high power per comb mode, but conventional high-repetition-rate lasers do not have a broad enough spectrum. In this study, a fully stabilized polarization-maintaining figure-9 mode-locked fib...

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Main Authors: Shotaro Kitajima, Kwangyn Jung, Norihiko Nishizawa
Format: Article
Language:English
Published: Nature Portfolio 2024-03-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-024-57735-2
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author Shotaro Kitajima
Kwangyn Jung
Norihiko Nishizawa
author_facet Shotaro Kitajima
Kwangyn Jung
Norihiko Nishizawa
author_sort Shotaro Kitajima
collection DOAJ
description Abstract High-repetition-rate optical frequency combs are useful for precision spectroscopy because of their high power per comb mode, but conventional high-repetition-rate lasers do not have a broad enough spectrum. In this study, a fully stabilized polarization-maintaining figure-9 mode-locked fiber laser with a high repetition rate of 206 MHz and a broad spectrum was demonstrated by employing simultaneous control of cavity dispersion and length. The laser exhibited a 3 dB spectral bandwidth of 88 nm and a compressed pulse width of 66 fs. Additionally, f CEO and f rep phase locking were implemented, resulting in low (0.21 rad) in-loop carrier-envelope-offset frequency phase noise. To the best of our knowledge, this is the widest spectrum bandwidth and shortest pulse duration directly obtained from an all-PM figure-9 fiber laser oscillator to date. The combination of high repetition rate and broad spectral range makes this system very useful for a wide range of applications, especially in the field of precision spectroscopy.
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spelling doaj.art-c76ff56687b84664bac25f966ec3033c2024-03-31T11:21:18ZengNature PortfolioScientific Reports2045-23222024-03-011411810.1038/s41598-024-57735-2206 MHz fully stabilized all-PM dispersion-managed figure-9 fiber laser combShotaro Kitajima0Kwangyn Jung1Norihiko Nishizawa2Department of Electronics, Nagoya UniversityDepartment of Electronics, Nagoya UniversityDepartment of Electronics, Nagoya UniversityAbstract High-repetition-rate optical frequency combs are useful for precision spectroscopy because of their high power per comb mode, but conventional high-repetition-rate lasers do not have a broad enough spectrum. In this study, a fully stabilized polarization-maintaining figure-9 mode-locked fiber laser with a high repetition rate of 206 MHz and a broad spectrum was demonstrated by employing simultaneous control of cavity dispersion and length. The laser exhibited a 3 dB spectral bandwidth of 88 nm and a compressed pulse width of 66 fs. Additionally, f CEO and f rep phase locking were implemented, resulting in low (0.21 rad) in-loop carrier-envelope-offset frequency phase noise. To the best of our knowledge, this is the widest spectrum bandwidth and shortest pulse duration directly obtained from an all-PM figure-9 fiber laser oscillator to date. The combination of high repetition rate and broad spectral range makes this system very useful for a wide range of applications, especially in the field of precision spectroscopy.https://doi.org/10.1038/s41598-024-57735-2
spellingShingle Shotaro Kitajima
Kwangyn Jung
Norihiko Nishizawa
206 MHz fully stabilized all-PM dispersion-managed figure-9 fiber laser comb
Scientific Reports
title 206 MHz fully stabilized all-PM dispersion-managed figure-9 fiber laser comb
title_full 206 MHz fully stabilized all-PM dispersion-managed figure-9 fiber laser comb
title_fullStr 206 MHz fully stabilized all-PM dispersion-managed figure-9 fiber laser comb
title_full_unstemmed 206 MHz fully stabilized all-PM dispersion-managed figure-9 fiber laser comb
title_short 206 MHz fully stabilized all-PM dispersion-managed figure-9 fiber laser comb
title_sort 206 mhz fully stabilized all pm dispersion managed figure 9 fiber laser comb
url https://doi.org/10.1038/s41598-024-57735-2
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