Phase-stabilized all-fiber-based mode-filtering technique for generating a gigahertz frequency comb | Zendy

Yoshiaki Nakajima | Zendy; Takuya Hariki | Zendy; Akiko Nishiyama | Zendy; Kaoru Minoshima | Zendy

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Phase-stabilized all-fiber-based mode-filtering technique for generating a gigahertz frequency comb

Author(s) -

Yoshiaki Nakajima,

Takuya Hariki,

Akiko Nishiyama,

Kaoru Minoshima

Publication year - 2020

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.393824

Subject(s) - optics , materials science , comb generator , comb filter , fiber laser , dispersion shifted fiber , fiber , mode field diameter , graded index fiber , mode volume , polarization maintaining optical fiber , frequency comb , plastic optical fiber , photonic crystal fiber , single mode optical fiber , optical fiber , fiber optic sensor , optoelectronics , wavelength , telecommunications , computer science , laser , physics , bandwidth (computing) , composite material

An all-fiber-based mode-filtering technique is developed for generating a gigahertz-repetition-rate fiber-based frequency comb with a multiplication factor of 21. A high side-mode suppression ratio of approximately 65 dB is achieved by introducing a thermally diffused expanded core fiber between the dispersion compensating fiber and single-mode fiber to reduce splice loss. The fiber cavity length is also stabilized such that the resonance frequency is locked to the comb mode by applying the Pound-Drever-Hall stabilization technique. The proposed stabilized all-fiber-based mode-filtering technique is expected to be an attractive choice for a variety of applications that require a high-repetition-rate frequency comb.

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