295 mW output, frequency-stabilized erbium silica fiber laser with a linewidth of 5 kHz and a RIN of −120 dB/Hz | Zendy

Keisuke Kasai | Zendy; Masato Yoshida | Zendy; Masataka Nakazawa | Zendy

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295 mW output, frequency-stabilized erbium silica fiber laser with a linewidth of 5 kHz and a RIN of −120 dB/Hz

Author(s) -

Keisuke Kasai,

Masato Yoshida,

Masataka Nakazawa

Publication year - 2016

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.24.002737

Subject(s) - laser linewidth , materials science , relative intensity noise , optics , fiber laser , oscillation (cell signaling) , erbium , laser , noise (video) , absorption (acoustics) , semiconductor laser theory , physics , chemistry , biochemistry , composite material , artificial intelligence , computer science , image (mathematics)

We demonstrate the frequency stabilization of a high output power, erbium silica fiber laser by utilizing a (13)C2H2 (acetylene) absorption line at 1538.8 nm and a H(13)C(14)N (hydrogen cyanide) absorption line at 1549.73 nm. We introduced a novel short ring cavity configuration and pump power feedback control to suppress the intensity noise of the laser output, which is caused by the relaxation oscillation of erbium ions. As a result, we succeeded in simultaneously obtaining a stable single-frequency oscillation with an output power of over 290 mW, a linewidth of 5 kHz, and a low relative intensity noise (RIN) of -120 dB/Hz. The frequency stabilities reached 2.8 × 10(-11) and 6.9 × 10(-11) for an integration time of 1 s with a (13)C2H2 and a H(13)C(14)N absorption line, respectively.

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