Narrow line width dual wavelength semiconductor optical amplifier based random fiber laser

Shawki, Heba A.; Kotb, Hussein E.; Khalil, Diaa

doi:10.1117/12.2289189

Cited by 2 publications

(3 citation statements)

References 20 publications

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“…After the first random DFB fiber laser was proposed with distributed Raman gain, different gain mechanisms were employed to verify random laser action. Indeed, multiple works report the generation of random lasers with different gain mechanisms [12,13,18,22,[87][88][89][90][91][92][93][94][95][96][97][98][99]. SBS is one of the alternatives to provide gain for random laser action.…”

Section: Other Gain Mechanismsmentioning

confidence: 99%

Section: Other Gain Mechanismsmentioning

confidence: 99%

“…Several works reported on the usage of SOA-based random DFB fiber lasers [12,13,[96][97][98][99]. Although the mode structure was not discussed in detail, single longitudinal mode (SLM) operation with narrow linewidth has been claimed [97][98][99]. Linewidth measurements might indeed suggest that SOAbased random lasers operate in single mode, with FWHM of the order of a few kHz.…”

Section: Other Gain Mechanismsmentioning

confidence: 99%

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The Role of Rayleigh Backscattering of Coherent Light in the Mode Dynamics of Random DFB Fiber Lasers

BRAGA¹

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I would like to thank my advisor Jean Pierre von der Weid, whose teaching capabilities go far beyond optics and photonics. I learned to be curious about every tiny detail, which not often, but occasionally, hides incredible answers, revealed only to those who persist in being curious.To all my colleagues and friends from the photonics laboratory at PUC-Rio, who were always there to help and happy to discuss about all the interesting phenomena we witnessed over the years.To my wife, who enlightens my days with joy and love, being the best life-partner any man could ask for.To my mother, for her unlimited love and support, and for encouraging me along each and every step of the way.To my brother. My uttermost example of integrity, who has always chosen the path made of principles, that leads to character.Without them, this work would not have been possible. To all my family and friends, who directly or indirectly contributed to this work.This study was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior -Brasil (CAPES) -Finance Code 001. And I would also like to thank the Brazilian agency CNPq for the financial support.

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Section: Other Gain Mechanismsmentioning

confidence: 99%

Section: Other Gain Mechanismsmentioning

confidence: 99%

Section: Other Gain Mechanismsmentioning

confidence: 99%

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The Role of Rayleigh Backscattering of Coherent Light in the Mode Dynamics of Random DFB Fiber Lasers

BRAGA¹

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Hybrid electronically addressable random fiber laser

Margulis¹,

Das²,

Weid³

et al. 2020

Opt. Express

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We report here a novel architecture for a random fiber laser exploiting the combination of a semiconductor optical amplifier (SOA) and an erbium doped fiber (EDF). The EDF was optically biased by a continuous wave pump laser, whereas the SOA was arranged in a fiber loop-mirror and driven by nanosecond duration current pulses. Laser pulses were obtained by synchronizing the SOA driver to the returning amplified Rayleigh back-scattered light from a selected short section of the EDF. By tuning the SOA pulse rate, random lasing was achieved by addressing selected meter-long sections of the 81-m long EDF, which was open-ended. Laser oscillation can be potentially obtained with SOA modulation frequencies from several kHz to the MHz regime. We discuss the mechanism leading to the hybrid random laser emission, connecting with phase sensitive optical time domain reflectometry and envision potential applications of this electronically addressable random laser.

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Narrow line width dual wavelength semiconductor optical amplifier based random fiber laser

Cited by 2 publications

References 20 publications

The Role of Rayleigh Backscattering of Coherent Light in the Mode Dynamics of Random DFB Fiber Lasers

The Role of Rayleigh Backscattering of Coherent Light in the Mode Dynamics of Random DFB Fiber Lasers

Hybrid electronically addressable random fiber laser

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