Coherent light generators – Optical fiber laser
Patent
1998-09-29
2000-12-19
Davie, James W.
Coherent light generators
Optical fiber laser
372 3, H01S 3067
Patent
active
061635545
ABSTRACT:
An optical fiber Raman laser includes an optical fiber which is a nonlinear optical medium, for implementing a nonlinear Stokes frequency shift; a wavelength-division multiplexing optical fiber coupler means, coupled to said optical fiber in parallel, for separating each Stokes frequency shifted wavelengths and pump wavelength, for internally resonating the Stokes frequency shited light wavelengths and for output-coupling said laser output light which is a second order Stokes frequency shifted wavelength; a first fiber Bragg grating means connected to said wavelength division multiplexing (WDM) optical fiber coupler means in serial, for transmitting light of the pump source and for selecting output wave of the Raman laser; and a second fiber Bragg grating means connected to said wavelength division multiplexing (WDM) optical fiber coupler means, which has maximum reflectivity on the wavelength of the pump source, for full-reflecting and re-inputting the light of the pump source to said optical fiber.
REFERENCES:
patent: 4794598 (1988-12-01), Desurvire et al.
patent: 5323404 (1994-06-01), Grabb
patent: 5815518 (1998-09-01), Reed et al.
Jean-Luc et al., Fiber Gratings in Lasers and Amplifiers, Journal of Lightwave Technology, vol 15, No. 8, Aug. 1997, pp. 1378-1390.
S.V. Chernikov, et al., High-power, compact, high-efficiency, fiber laser source around 1.24 .mu.m for pumping Raman Amplifiers, OFC '97 Technical Digest, pp. 345 (No month).
Chang Do IL
Kim Ho Young
Lee El Hang
Davie James W.
Electronics and Telecommunications Research Institute
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