Optical: systems and elements – Optical amplifier – Raman or brillouin process
Patent
1996-10-15
1998-08-04
Moskowitz, Nelson
Optical: systems and elements
Optical amplifier
Raman or brillouin process
359124, 359341, 372 3, 372 6, H07F 700, H04B 900, H03F 705
Patent
active
057903000
ABSTRACT:
The multi-channel fiber amplification system and associated method includes a fiber amplifier which solves problems with power poaching by simultaneously amplifying a pair of optical signals in a similar manner even if the fiber amplifier is saturated. The fiber amplifier, has greater absorption than emission for wavelengths immediately less than a reference wavelength and greater emission than absorption for wavelengths immediately greater than the reference wavelength. The multi-channel fiber amplification system also includes a pump source having a Stokes band which includes at least some wavelengths greater than the reference wavelength of the fiber amplifier. The multi-channel fiber amplification system further includes first and second signal sources for providing first and second signals, respectively, having first and second wavelengths, respectively. The first and second wavelengths are both within the Stokes band of the pump source and are greater than the reference wavelength of the fiber amplifier such that the fiber amplifier simultaneously amplifies both the first and second signals by stimulated Raman scattering.
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patent: 4815804 (1989-03-01), Desurvire et al
patent: 5323404 (1994-06-01), Gruff
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Emmanuel Desurvire, Gain, Saturation, and Noise Characteristics Of Erbium-Doped Fiber Amplifiers (Scattering Fiber Amplifiers), Erbium-Doped Fiber Amplifiers Principles And Applications, Copyright 1994, pp. 446-451.
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Gruff, S. G., Leos '95, 8th Annu. Mtg., Oct. 31, 1995, vol. 2, pp. 69-70.
Rice Robert Rex
Zediker Mark Steven
McDonnell Douglas Corporation
Moskowitz Nelson
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