Optics: measuring and testing – By dispersed light spectroscopy – Utilizing a spectrometer
Patent
1991-02-08
1993-07-27
Turner, Samuel A.
Optics: measuring and testing
By dispersed light spectroscopy
Utilizing a spectrometer
372 6, G01C 1972
Patent
active
052314650
ABSTRACT:
A length of an absorbing optical fiber is connected to receive light output from an optically pumped light source. The light source includes a gain fiber that is doped with erbium. Pumping the erbium with a pump wavelength of 980 nm causes the erbium to emit light having a wavelength of 1550 nm. Ytterbium ions in the absorbing fiber attenuate light having the pump wavelength without affecting the intensity of the 1550 nm light output from the erbium in the gain fiber.
REFERENCES:
patent: 4386822 (1983-07-01), Bergh
patent: 4493528 (1985-01-01), Shaw et al.
patent: 4637025 (1987-01-01), Snitzer et al.
patent: 4676583 (1987-06-01), Hicks, Jr.
patent: 4695123 (1987-09-01), Chang et al.
patent: 4725113 (1988-02-01), Chang et al.
patent: 4829529 (1989-05-01), Kafka
patent: 4860294 (1989-08-01), Winzer et al.
patent: 4874216 (1989-10-01), Utaka et al.
patent: 4922496 (1990-05-01), Po
patent: 4935930 (1990-06-01), Handa
patent: 4946245 (1990-08-01), Chamberlin et al.
patent: 4952059 (1990-08-01), Desurvire et al.
patent: 4959837 (1990-09-01), Fevrier et al.
patent: 4963177 (1990-10-01), Najafi et al.
patent: 5016967 (1991-05-01), Meltz et al.
patent: 5108183 (1992-04-01), Fling et al.
Barnes et al., "Diode-Laser-Pumped Er3+/Yb3+-Doped Fiber Laser Operating at 1.57 um," Technical Digest, Conference on Optic Fiber Communication (1989, Houston), paper TUG4.
Bergh et al., "Single-Mode Fibre Optic Directional Coupler," Electronics Letters, vol. 16, No. 7, Mar. 27, 1980, pp. 260-261.
Eichen et al., "Active Fiber, Optical Attenuators," Proceedings of 16th ECOC '90, Amsterdam, Netherlands, 1990, vol. 1, pp. 567-570.
Wilkinson, et al., "Application of Rare-earth Doped Fibres as Lowpass Filters in Passive Optical Networks," Eletronics Letters, vol. 27, Jan. 31, 1991.
Huang Sidney X. Y.
Phillips Edward
Litton Systems Inc.
Turner Samuel A.
LandOfFree
High efficiency fiber absorber and method for attenuating pump l does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High efficiency fiber absorber and method for attenuating pump l, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High efficiency fiber absorber and method for attenuating pump l will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2345526