Coherent light generators – Optical fiber laser
Patent
1992-07-27
1993-12-14
Gonzalez, Frank
Coherent light generators
Optical fiber laser
372102, 385 37, 359130, 359341, H01S 307, G02B 634
Patent
active
052710246
ABSTRACT:
An in-fiber Bragg grating is used to flatten the gain slope of a fiber optical amplifier or optical fiber laser. The grating can be formed using photorefractive techniques, and is placed within a guided wave portion of a doped optical fiber. The grating is oriented at a nonperpendicular angle with respect to a longitudinal axis of the fiber, and has an interaction wavelength that is selected to flatten the gain slope of the device by diverting excess spontaneous emission therefrom. The interaction wavelength is preferably selected to correspond to a wavelength at or near that at which the spontaneous emission produced by the fiber peaks.
REFERENCES:
patent: 4786132 (1988-11-01), Gordon
patent: 4911516 (1990-03-01), Palfrey et al.
patent: 5115338 (1992-05-01), DiGiovanni et al.
patent: 5134620 (1992-07-01), Huber
patent: 5151908 (1992-09-01), Huber
patent: 5159601 (1992-10-01), Huber
patent: 5166940 (1992-11-01), Tumminelli et al.
R. Kashyap, et al., "All-Fibre Narrowband Reflection Gratings at 1500 nm," Electronics Letters, vol. 26, No. 11, May 24, 1990.
M. Tachibana, et al., "Gain-Shaped Erbium-Doped Fibre Amplifier (EDFA) with Broad Spectral Bandwidth," Optical Amplifiers and Their Applications, 1990 Technical Digest Series, vol. 13, Conference Edition, Optical Society of America, Aug. 6-8, 1990, Paper MD1, pp. 44-47.
M. Tachibana, et al., "Spectral Gain Cross Saturation and Hole-Burning in Wideband Erbium-Doped Fibre Amplifiers," Optical Amplifiers and Their Applications, 1991 Technical Digest Series, vol. 13, Conference Edition, Optical Society of America, Jul. 24-26, 1991, Paper ThB1-1, pp. 104-107.
Meltz, et al., "Formation of Bragg Gratings in Optical Fibers by a Transverse Holographic Method," Optics Letters, vol. 14, No. 15, Aug. 1, 1989, pp. 823-825.
General Instrument Corporation
Gonzalez Frank
Lipsitz Barry R.
LandOfFree
Optical fiber amplifier and laser with flattened gain slope does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical fiber amplifier and laser with flattened gain slope, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical fiber amplifier and laser with flattened gain slope will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1712220