Title :
Compensation for distortions and depolarization of a multi-mode fiber using a Brillouin phase-conjugate mirror
Author :
Matthews, Steven C. ; Rockwell, David A.
Author_Institution :
Hughes Electro-Opt. Syst., El Segundo, CA, USA
Abstract :
We have used Brillouin phase conjugation to demonstrate compensation of phase aberrations and depolarization induced by a multi-mode fiber, and we have achieved a high degree of fidelity. Although the relatively weak signal-beam power led to our selection of a PCM based on Brillouin enhanced four-wave mixing (BEFWM), with its associated complexities, simple SBS PCMs are capable of thresholds much less than those of the present device. For example, the use of longer capillaries (lengths of several meters) with smaller cross sections (100 μm) has been shown to yield SBS threshold powers as low as ~ 100 W
Keywords :
aberrations; mirrors; multiwave mixing; optical fibre polarisation; optical noise; optical phase conjugation; stimulated Brillouin scattering; 100 W; 100 mum; BEFWM; Brillouin enhanced four-wave mixing; Brillouin phase conjugation; Brillouin phase-conjugate mirror; PCM; SBS threshold powers; depolarization compensation; distortion compensation; fidelity; longer capillaries; multi-mode fiber; phase aberrations; relatively weak signal-beam power; smaller cross sections; Fiber lasers; Laser beams; Laser noise; Nonlinear distortion; Optical distortion; Optical fiber polarization; Optical fibers; Phase change materials; Phase distortion; Photorefractive effect;
Conference_Titel :
Nonlinear Optics: Materials, Fundamentals, and Applications, 1994. NLO '94 IEEE
Conference_Location :
Waikoloa, HI
Print_ISBN :
0-7803-1473-5
DOI :
10.1109/NLO.1994.470762
