Results 1 to 10 of about 107,621 (150)
Spectral correlations in a random distributed feedback fibre laser [PDF]
Nature Communications, 2017 The feedback mechanism in random fibre lasers has been insofar deemed incoherent. To reveal the dynamic evolution of the random fibre laser spectra, Sugavanamet al.
Srikanth Sugavanam +2 more
doaj +5 more sources
Effect of Linewidth on the Relative Intensity Noise in Random Distributed Feedback Raman Fiber Lasers [PDF]
Sensors, 2022 We experimentally explore the relation between spectral linewidth and RIN transfer in half-open cavity random distributed feedback Raman lasers, demonstrating for the first time the possibility of adjusting the pump-to-signal RIN transfer intensity and ...
Sergio Rota-Rodrigo +4 more
doaj +2 more sources
Random Distributed Feedback Fiber Laser [PDF]
Optics and Photonics News, 2010 Peer ...
Sergei K Turitsyn +2 more
exaly +4 more sources
RIN transfer in random distributed feedback fiber lasers [PDF]
Optics Express, 2012 We numerically investigate relative intensity-noise transfer from a noisy pump to the generated Stokes component in random distributed feedback ultralong Raman fiber lasers. Results show transfer levels comparable to those in distributed Raman amplification and cavity-based ultralong Raman fiber lasers, but with some unique spectral features.
Javier Nuno, Juan Diego Ania-Castañón
exaly +4 more sources
Random distributed feedback fibre lasers
Physics Reports, 2014 The concept of random lasers making use of multiple scattering in amplifying disordered media to generate coherent light has attracted a great deal of attention in recent years. Here, we demonstrate a fibre laser with a mirrorless open cavity that operates via Rayleigh scattering, amplified through the Raman effect.
Sergei K Turitsyn +2 more
exaly +3 more sources
Narrow-band generation in random distributed feedback fiber laser [PDF]
Optics Express, 2013 Narrow-band emission of spectral width down to ~0.05 nm line-width is achieved in the random distributed feedback fiber laser employing narrow-band fiber Bragg grating or fiber Fabry-Perot interferometer filters. The observed line-width is ~10 times less than line-width of other demonstrated up to date random distributed feedback fiber lasers.
Srikanth Sugavanam +2 more
exaly +3 more sources
Power optimization of random distributed feedback fiber lasers
Optics Express, 2012 We present a comprehensive study of power output characteristics of random distributed feedback Raman fiber lasers. The calculated optimal slope efficiency of the backward wave generation in the one-arm configuration is shown to be as high as ~90% for 1 W threshold.
Ilya D Vatnik +2 more
exaly +3 more sources
Narrow-Linewidth Multi-Wavelength Random Distributed Feedback Laser [PDF]
Journal of Lightwave Technology, 2015 In this work, narrow-band emission lines are generated by means of two random distributed feedback fiber laser schemes. Spectral line-widths as narrow as 3.2 pm have been measured, which significantly improves previous reported results. The laser is analyzed with the aim of obtaining a spectral line-width as narrow as possible. Additionally a variation
Daniel Leandro +2 more
exaly +4 more sources
Modeling of spectral and statistical properties of a random distributed feedback fiber laser
Optics Express, 2013 For the first time we report full numerical NLSE-based modeling of generation properties of random distributed feedback fiber laser based on Rayleigh scattering. The model which takes into account the random backscattering via its average strength only describes well power and spectral properties of random DFB fiber lasers.
Sergey Smirnov, D V Churkin
exaly +3 more sources
Cascaded random distributed feedback Raman fiber laser operating at 12 μm
Optics Express, 2011 We demonstrate a CW random distributed feedback Raman fiber laser operating in a 1.2 μm spectral band. The laser generates up to 3.8 W of the quasi-CW radiation at 1175 nm with the narrow spectrum of 1 nm. Conversion efficiency reaches 60%. Up to 1 W is generated at the second Stokes wavelength of 1242 nm.
Ilya D Vatnik +2 more
exaly +3 more sources