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The random fiber lasers and their applications
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Journal of Lasers, Optics & Photonics

ISSN: 2469-410X

Open Access

The random fiber lasers and their applications


Joint Event on 6th International Conference on Photonics & 7th International Conference on Laser Optics

July 31- August 02, 2017 Milan, Italy

Xiaoyi Bao

University of Ottawa, Canada

Scientific Tracks Abstracts: J Laser Opt Photonics

Abstract :

Random fiber lasers (RFLs) with unique frequency and phase properties have attracted much attention. Comparing with the fixed cavity length lasers, RFLs rely on a scattering medium, where multiple scattering lights due to spatial inhomogeneity is captured by the fiber waveguide and amplified through different gain media leading to one-dimensional lasers with good directionality. The frequency, phase and intensity noises of RFLs have strong dependency on the free mean length (??l) of the scattering medium. Through our experiments, we observed three different cases relative to the fiber length L, wavelength ?»: (1) when ??l>?», the frequency jitter is the highest, although relative intensity noises (RIN) and the linewidth (<5 kHz) is comparable to the phase locked laser. The random feedback can be realized by writing random grating at sub-mm spacing; (2) when ??l~?»; the linewidth can be <100 Hz with long fiber (Lâ?¥5 km), RIN is increased due to large number of the random modes, while the frequency noise is reduced; (3) ??l

Biography :

Xiaoyi Bao is the Canada Research Chair Professor (Tier I) in Fiber Optics and Photonics in Center for Research in Photonics, Physics Department, University of Ottawa, Canada. Her research interests range from study of nonlinear effects in fibers to make fiber device, lasers and sensors. She has co-authored over 260 refereed journals and 210 conference proceeding papers, 9 book chapters, and 6 IPs/patents from her group have been transferred to industries. She is a Fellow of Royal Society of Canada (RSC), OSA and SPIE.

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