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公开(公告)号：CA2392156A1
公开(公告)日：2001-05-25
申请号：CA2392156
申请日：2000-10-12
Applicant: CORNING INC
Inventor： FLOOD FELTON A
Abstract: A method for controlling the shape and magnitude of the L-band gain spectrum of an erbium doped optical amplifier, in one aspect, involves saturating the amplifier gain with a saturating signal in the L-band. Another aspect of the method involves saturating the amplifier gain by controlling the temperature of the gain medium. By pumping the amplifier in the 980 nm and/or the 1480 n m pump bands, the gain spectra at different inversion levels are adjusted.
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公开(公告)号：AU6099001A
公开(公告)日：2001-11-07
申请号：AU6099001
申请日：2001-02-27
Applicant: CORNING INC
Inventor： COWLE GREGORY J , FLOOD FELTON A , WANG CHIA C , ZENTENO LUIS A
Abstract: A multi-stage optical fiber amplifier comprises a first gain stage amplifying and optical signal; a pumping source coupled to the first gain stage, a second gain stage coupled to the first gain to further amplifying the optical signal to a desired output signal power, and a second pumping source coupled to the second gain stage. The second pumping source is preferably an erbium-doped fiber laser and has an operating wavelength between about 1520 nm and about 1620 nm. This amplifier achieves good noise figure and high output powers.
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公开(公告)号：AU1477100A
公开(公告)日：2000-06-13
申请号：AU1477100
申请日：1999-11-10
Applicant: CORNING INC
Inventor： FLOOD FELTON A , HALL DOUGLAS W
Abstract: A method of operating an optical amplifier for improved gain and pump-to-signal conversion efficiency in a long wavelength spectral region (L-band) of the emission spectrum of a rare earth doped gain medium having a known pump absorption band involves the steps of providing an optical signal to the amplifier having a large-signal input power; and providing pumping light to the amplifier having a wavelength that is different from a center wavelength of the known pump absorption band for amplifying the optical signal. Signal gain and improved pump-to-signal conversion efficiency was demonstrated for an erbium L-band signal by detuning the pump between about ±0-30 nm on either side of the pump band center wavelength of 979-980 nm. An optical amplifier employing the described method is also disclosed.
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公开(公告)号：CA2396034A1
公开(公告)日：2001-07-05
申请号：CA2396034
申请日：2000-10-27
Applicant: CORNING INC
Inventor： SMART RICHARD G , LIU YONGQIAN , FLOOD FELTON A
Abstract: The optical amplifier (5) includes a first gain medium (10a) that contains a rare earth dopant and a first pump (20a) that supplies optical energy at a first wavelength into this first gain medium (10a). The first pump operates at a pump wavelength that has a lower inversion saturation than the highest wavelength of absorption of the first gain medium. The optical amplifier further comprises a second gain medium (10b) operatively coupled to the firs t gain medium (10a) and a second pump (20b) that supplies optical energy into the second gain medium.
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公开(公告)号：AU6391999A
公开(公告)日：2000-05-08
申请号：AU6391999
申请日：1999-09-17
Applicant: CORNING INC
Inventor： FLOOD FELTON A , YADLOWSKY MICHAEL J
Abstract: An amplification stage of a multistage, rare earth doped optical amplifier, having a gain spectrum including a shorter wavelength band and a longer wavelength band, provided with excitation light produces an amount of ASE traveling in a reverse direction to the initial excitation light. The reverse traveling ASE light is directed to another amplification stage of the amplifier and substantially provides excitation light for pumping the longer wavelength band. The proposed amplifier structure and associated method of optical signal amplification efficiently utilizes unavoidable ASE light for optical signal amplification. The invention provides signal amplification in a wavelength band not heretofore efficiently utilized in conventional rare earth doped optical amplifiers.
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Patent Agency Ranking
公开(公告)号：WO0137384A2
公开(公告)日：2001-05-25
申请号：PCT/US0028224
申请日：2000-10-12
Applicant: CORNING INC
Inventor： FLOOD FELTON A
CPC classification number: H01S3/06754 , H01S3/094096 , H01S3/10007 , H01S2301/04 , H01S2302/00
Abstract: A method for controlling the shape and magnitude of the L-band gain spectrum of an erbium doped optical amplifier, in one aspect, involves saturating the amplifier gain with a saturating signal in the L-band. Another aspect of the method involves saturating the amplifier gain by controlling the temperature of the gain medium. By pumping the amplifier in the 980 nm and/or the 1480 nm pump bands, the gain spectra at different inversion levels are adjusted.
Abstract translation: 在一方面，一种用于控制掺铒光放大器的L波段增益谱的形状和幅度的方法涉及在L波段中用饱和信号来饱和放大器增益。 该方法的另一方面涉及通过控制增益介质的温度使放大器增益饱和。 通过在980nm和/或1480nm泵浦波段中泵浦放大器，调整不同反转电平下的增益光谱。
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公开(公告)号：AU2423501A
公开(公告)日：2001-07-09
申请号：AU2423501
申请日：2000-10-27
Applicant: CORNING INC
Inventor： FLOOD FELTON A , LIU YONGQIAN , SMART RICHARD G
Abstract: The optical amplifier includes a first gain medium having an optical host that contains a rare earth dopant and a first pump that supplies optical energy at a first wavelength into this first gain medium. The first pump operates at a pump wavelength that has a lower inversion saturation than the highest wavelength of absorption of the first gain medium. The optical amplifier further comprises a second gain medium operatively coupled to the first gain medium and a second pump that supplies optical energy into the second gain medium.
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公开(公告)号：AU2247501A
公开(公告)日：2001-05-30
申请号：AU2247501
申请日：2000-10-12
Applicant: CORNING INC
Inventor： FLOOD FELTON A
Abstract: A method for controlling the shape and magnitude of the L-band gain spectrum of an erbium doped optical amplifier, in one aspect, involves saturating the amplifier gain with a saturating signal in the L-band. Another aspect of the method involves saturating the amplifier gain by controlling the temperature of the gain medium. By pumping the amplifier in the 980 nm and/or the 1480 nm pump bands, the gain spectra at different inversion levels are adjusted.
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公开(公告)号：CA2362087A1
公开(公告)日：2000-06-02
申请号：CA2362087
申请日：1999-11-10
Applicant: CORNING INC
Inventor： FLOOD FELTON A , HALL DOUGLAS W
Abstract: A method of operating an optical amplifier for improved gain and pump-to- signal conversion efficiency in a long wavelength spectral region (L-band) o f the emission spectrum of a rare earth doped gain medium having a known pump absorption band involves the steps of providing an optical signal to the amplifier having a large-signal input power; and providing pumping light to the amplifier having a wavelength that is different from a center wavelength of the known pump absorption band for amplifying the optical signal. Signal gain and improved pump-to-signal conversion efficiency was demonstrated for an erbium L-band signal by detuning the pump between about ~0-30nm on either si de of the pump band center wavelength of 979-980nm. An optical amplifier employing the described method is also disclosed.
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公开(公告)号：CA2346664A1
公开(公告)日：2000-04-27
申请号：CA2346664
申请日：1999-09-17
Applicant: CORNING INC
Inventor： YADLOWSKY MICHAEL J , FLOOD FELTON A
Abstract: An amplification stage of a multistage, rare earth doped (10) amplifier, having a gain spectrum including a shorter wavelength band and a longer wavelength band, provided with excitation light produces an amount of ASE traveling in a reverse direction to the initial excitation light. The revers e traveling ASE light is directed to another amplification stage (14) of the amplifier (10) and substantially provides excitation light for pumping the longer wavelength band. The proposed amplifier structure and associated meth od of optical signal amplification efficiently utilizes unavoidable ASE light f or optical signal amplification. The invention provides signal amplification in a wavelength band not heretofore efficiently utilized in conventional rare ear th doped optical amplifiers.
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