A Bidirectional Mode-Locked Fiber Laser for Asynchronous Noise-like Pulse Generation

We demonstrate a bidirectional fiber laser with an artificial saturable absorber of a step-index multimode fiber sandwiched by single-mode fibers. Two asynchronous noise-like pulse sequences with a repetition frequency difference of 3.16 kHz are obtained. The average power of the bidirectional async...

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Bibliographic Details
Published in:Photonics 2024-09, Vol.11 (9), p.886
Main Authors: Zheng, Yongguo, Wang, Anshuang, Cai, Yue, Zhang, Fan, Zhang, Xinhai
Format: Article
Language:English
Subjects:
asynchronous noise-like pulse
bidirectional fiber laser
Equipment and supplies
Fiber lasers
Fiber optics
Fibers
Laser mode locking
Lasers
Micromachining
Noise generation
Propagation
Signal generation
Signal processing
Spectrum analysis
step-index multimode fiber
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Summary:We demonstrate a bidirectional fiber laser with an artificial saturable absorber of a step-index multimode fiber sandwiched by single-mode fibers. Two asynchronous noise-like pulse sequences with a repetition frequency difference of 3.16 kHz are obtained. The average power of the bidirectional asynchronous noise-like pulses is greater than 36 mW, and the pulse energy is greater than 3 nJ. The laser we demonstrate has potential applications in micromachining, supercontinuum spectrum generation, and signal processing.
ISSN:2304-6732
2304-6732
DOI:10.3390/photonics11090886