All-fiber 770 nm Laser Based on Second Harmonic Generation

We present an all-fiber 770 nm laser module based on second harmonic generation (SHG) in a periodically poled lithium niobate (PPLN) waveguide. The laser module provides an output power of 192 mW with an SHG conversion efficiency of 22.9 %. The side mode suppression ratio (SMSR) of 38.6 dB, and the...

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Bibliographic Details
Published in2022 Asia Communications and Photonics Conference (ACP) pp. 259 - 261
Main Authors Chen, Xu, Luo, Jiahao, Liu, Jingmin, Yang, Shichao, Yu, Xia
Format Conference Proceeding
LanguageEnglish
Published IEEE 05.11.2022
Subjects
Atom optics
fiber laser
Laser modes
Laser noise
Measurement by laser beam
Optical variables measurement
Power lasers
PPLN
second harmonic generation
Waveguide lasers
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Summary:We present an all-fiber 770 nm laser module based on second harmonic generation (SHG) in a periodically poled lithium niobate (PPLN) waveguide. The laser module provides an output power of 192 mW with an SHG conversion efficiency of 22.9 %. The side mode suppression ratio (SMSR) of 38.6 dB, and the relative intensity noise (RIN) below -120 dBc/Hz between 100 Hz and 10 MHz Fourier frequency is achieved. The laser linewidth of 15 kHz is acquired. The high optical power and low noise of the 770 nm all-fiber laser module are suitable for precise quantum measurements, such as atomic magnetometers and optical atomic clocks.
DOI:10.1109/ACP55869.2022.10088470