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Random distributed feedback fiber laser at 21 μm
Optics Letters, 2016We demonstrate a random distributed feedback fiber laser at 2.1 μm. A high-power pulsed Tm-doped fiber laser operating at 1.94 μm with a temporal duty ratio of 30% was employed as a pump laser to increase the equivalent incident pump power. A piece of 150 m highly GeO2-doped silica fiber that provides a strong Raman gain and random distributed ...
Xiaoxi Jin, Jiangming Xu, Pu Zhou
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Intensity dynamics and statistical properties of random distributed feedback fiber laser
Optics Letters, 2015We present first experimental investigation of fast-intensity dynamics of random distributed feedback (DFB) fiber lasers. We found that the laser dynamics are stochastic on a short time scale and exhibit pronounced fluctuations including generation of extreme events.
Srikanth Sugavanam, D V Churkin
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Noise Characteristics for Random Fiber Lasers with Rayleigh Distributed Feedback [PDF]
, 2014 Frequency and intensity noise are characterized for Erbium-Doped Fiber and Brillouin random lasers based on Rayleigh distributed feedback mechanism. We propose a theoretical model for the frequency noise of an Er-doped fiber random lasers using the property of random phase modulations from multiple scattering points in ultra-long fibers.
Saxena, Bhavaye
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Switchable multi-wavelength random distributed feedback fiber laser
Optik, 2019Abstract A novel switchable multi-wavelength erbium-doped fiber laser based on random distributed feedback is demonstrated in this paper. Based on loop mirror to form a half-opened laser cavity, typical random laser radiation is achieved with an obvious threshold behavior as a function of pump power.
Junfa Zhao, Jinjun Bai
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Poisson distribution of extreme events in radiation of random distributed feedback fiber laser
Optics Letters, 2020In the present Letter, we experimentally investigate extreme events in the time dynamics of the random distributed feedback fiber laser. We find that the probability of extreme events depends on the wavelength of the generated light. On spectrum tails, we register extreme events with intensity up to 50 times higher than the average generation power ...
O. A. Gorbunov +3 more
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ROGUE-based, random distributed feedback lasers
Fiber Lasers XVII: Technology and Systems, 2020In this work, we show that the enhanced backscatter originating from the recently discovered ROGUE (Random Optical Grating by Ultraviolet or ultrafast laser Exposure) increases the performance of random distributed feedback lasers. The inscription of ROGUEs inside regular optical fibers leads to lower power thresholds, and more compact lasers requiring
Frédéric Monet +4 more
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Frequency doubling of Raman fiber lasers with random distributed feedback
Optics Letters, 2016This Letter presents what we believe is the first experimental study of frequency doubling of a Raman fiber laser (RFL) with random distributed feedback (RDFB) in an MgO:PPLN crystal. We compared two laser configurations, each with a half-open cavity. The cavity contained either a broadband Sagnac mirror or a narrowband fiber Bragg grating (FBG).
E I, Dontsova +3 more
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Randomized Distributed MIMO with Limited Feedback in Dynamic Relay Networks
2009 IEEE 70th Vehicular Technology Conference Fall, 2009In this paper, a cooperative spatial multiplexing scheme is considered for dynamic relay networks. We assume that each relay node is equipped with a single antenna. To obtain spatial multiplexing gains, the distributed multiple-input multiple-output (MIMO) scheme, in which cooperating nodes act as elements of a multiantenna system, has been proposed in
Xin He +3 more
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Fully distributed amplification based on random distributed feedback fiber laser
2012 17th Opto-Electronics and Communications Conference, 2012A novel distributed Raman amplification based on Random Distributed feedback fiber laser (RDFB-FL) is proposed for the first time. The experimental results confirmed its unique ultra-low intensity noise performance for the proposed distributed amplification.
Yun-Jiang Rao +4 more
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Random Distributed Feedback Raman Fiber Lasers
2017In this chapter we briefly review the basic principles of Raman fiber lasers operating via random distributed feedback, including details of feedback mechanism, various cavity designs, and corresponding power and spectral characteristics, as well as their statistical properties. We also compare performances of the random Raman fiber lasers (RRFLs) with
Sergey A. Babin +9 more
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