公开(公告)号：US11652329B2

公开(公告)日：2023-05-16

申请号：US17187147

申请日：2021-02-26

申请人： FURUKAWA ELECTRIC CO., LTD.

发明人： Haruki Ogoshi ,  Masahito Morimoto

IPC分类号： H01S3/094 ,  H01S3/067 ,  H01S3/0915 ,  H01S3/23 ,  H01S3/30 ,  H01S3/0933 ,  H01S3/0941

CPC分类号： H01S3/094046 ,  H01S3/06754 ,  H01S3/0915 ,  H01S3/094011 ,  H01S3/094038 ,  H01S3/2316 ,  H01S3/302 ,  H01S3/0933 ,  H01S3/09415 ,  H01S3/094003 ,  H01S3/094096 ,  H01S2301/02

摘要： A light source for Raman amplification to Raman-amplify signal light includes: plural incoherent light sources that output incoherent light; plural pumping light sources that output second-order pumping light; an optical fiber for Raman amplification to Raman-amplify the incoherent light with the second-order pumping light, and outputs the amplified incoherent light; and an output unit connected to the optical transmission fiber, receiving the amplified incoherent light, and outputting the amplified incoherent light as first-order pumping light having a wavelength that Raman-amplifies the signal light to the optical transmission fiber.

公开(公告)号：US10008819B2

公开(公告)日：2018-06-26

申请号：US15511798

申请日：2015-09-16

申请人： IPG PHOTONICS CORPORATION

发明人： Manuel Leonardo ,  Igor Samartsev ,  Alexey Avdokhin ,  Gregory Keaton

IPC分类号： G02F1/35 ,  G02F2/02 ,  H01S3/00 ,  G02F1/37 ,  G02F1/355 ,  H01S3/30 ,  H01S3/067 ,  H01S3/16 ,  G02B27/48

CPC分类号： H01S3/0092 ,  G02B27/48 ,  G02F1/3532 ,  G02F1/3551 ,  G02F1/37 ,  H01S3/0675 ,  H01S3/06758 ,  H01S3/08045 ,  H01S3/094046 ,  H01S3/1618 ,  H01S3/2391 ,  H01S3/302

摘要： A broad line red light generator is configured with a single mode (SM) pulsed ytterbium (“Yb”) fiber laser pump source outputting pump light in a fundamental mode (“FM”) at a pump wavelength which is selected from a 1030-1120 nm wavelength range. The disclosed generator further includes a SM fiber Raman converter spliced to an output of the Yb fiber laser pump source. The Raman converter induces an “n” order frequency Stokes shift of the pump light to output the pump light at a Raman-shifted wavelength within 1220 and 1300 nm wavelength range with a broad spectral line of at least 10 nm. The disclosed light generator further has a single pass second harmonic generator (“SHG”) with a lithium triborate (“LBO”) nonlinear optical crystal having a spectral acceptance linewidth which is sufficient to cover the broad spectral line of the pump light. The SHG generates a SM pulsed broad-line red light with a broad spectral line of at least 4 nm.

公开(公告)号：US20180175579A1

公开(公告)日：2018-06-21

申请号：US15884271

申请日：2018-01-30

申请人： THE UAB RESEARCH FOUNDATION

发明人： Sergey B. Mirov ,  Vladimir V. Fedorov

IPC分类号： H01S3/08 ,  H01S3/0941 ,  C30B31/02 ,  H01S3/06 ,  H01S3/16 ,  H01S3/117 ,  H01S3/115 ,  H01S3/108 ,  H01S3/1055 ,  C30B31/00 ,  H01S3/094 ,  H01S3/00 ,  H01S3/113

CPC分类号： H01S3/0805 ,  C30B29/48 ,  C30B31/00 ,  C30B31/02 ,  H01S3/0014 ,  H01S3/0604 ,  H01S3/0617 ,  H01S3/0627 ,  H01S3/08009 ,  H01S3/08086 ,  H01S3/094038 ,  H01S3/094042 ,  H01S3/094046 ,  H01S3/09415 ,  H01S3/1055 ,  H01S3/108 ,  H01S3/113 ,  H01S3/115 ,  H01S3/117 ,  H01S3/162 ,  H01S3/1623 ,  H01S3/1628 ,  H01S2301/04 ,  Y10S438/917

摘要： A method of performing spatial separation of different wavelengths in a single laser cavity includes generating, from a pump radiation source, pump radiations in spatially separate channels and focusing the generated pump radiations in the spatially separate channels towards an active gain medium having amplification spectra. The method also includes emitting from the active gain medium, amplified radiations of the spatially separate channels, each channel of the spatially separate channels representing a corresponding wavelength and focusing the emitted amplified radiations of the spatially separated channels towards an aperture. The method further includes suppressing, at the aperture, an off-axis mode of the amplified radiations of the spatially separate channels, diffracting the amplified radiations of the spatially separate channels received through the aperture to provide diffracted radiations and returning a portion of the diffracted radiations back to the aperture, and collimating the diffracted radiations of the spatially separate channel.

公开(公告)号：US09948058B2

公开(公告)日：2018-04-17

申请号：US15424303

申请日：2017-02-03

申请人： II-VI Incorporated

发明人： Ian Peter McClean ,  Manish Sharma

IPC分类号： H01S3/13 ,  H01S3/30 ,  H04B10/079 ,  G01M11/00 ,  H01S3/094

CPC分类号： H01S3/1305 ,  G01M11/30 ,  G01M11/33 ,  G01M11/338 ,  H01S3/06754 ,  H01S3/094003 ,  H01S3/094038 ,  H01S3/094046 ,  H01S3/094076 ,  H01S3/094096 ,  H01S3/302 ,  H04B10/0797

摘要： An optical amplifier assembly for determining a parameter of an optical fiber configured to amplify an optical signal being propagated therethrough, the assembly comprising: at least one amplifier pump light source assembly configured to transmit light at a plurality of wavelengths into the optical fiber; a receiver configured to receive light that has propagated through at least part of the optical fiber; and a processor configured to determine the parameter of the optical fiber based on the received light.

公开(公告)号：US20180019813A1

公开(公告)日：2018-01-18

申请号：US15705834

申请日：2017-09-15

申请人： Ciena Corporation

发明人： Jean-Luc ARCHAMBAULT ,  Jun BAO ,  Balakrishnan SRIDHAR

IPC分类号： H04B10/079 ,  H04J14/02 ,  H04B10/291 ,  H04B10/071 ,  G01M11/00 ,  H01S3/30 ,  H04Q9/00 ,  H04B10/073 ,  H01S3/131 ,  H01S3/094

CPC分类号： H04B10/0797 ,  G01M11/3109 ,  G01M11/3136 ,  G01M11/319 ,  H01S3/094042 ,  H01S3/094046 ,  H01S3/1312 ,  H01S3/302 ,  H04B10/071 ,  H04B10/0731 ,  H04B10/2916 ,  H04J14/0227 ,  H04Q9/00

摘要： An optical module includes an optical amplifier configured to amplify Wavelength Division Multiplexing (WDM) channels transmitted on a fiber; and an optical time domain reflectometer (OTDR) configured to transmit an OTDR signal on the fiber and detect a back-scattered signal based thereon to test the fiber, wherein a wavelength of the OTDR signal is one of i) between one or more wavelengths associated with the optical amplifier and one or more wavelengths associated with the WDM channels and ii) greater than the one or more wavelengths associated with the WDM channels, for in-service operation of the OTDR.

公开(公告)号：US20170163003A1

公开(公告)日：2017-06-08

申请号：US15424303

申请日：2017-02-03

申请人： II-VI Incorporated

发明人： Ian Peter McClean ,  Manish Sharma

IPC分类号： H01S3/13 ,  H04B10/079 ,  H01S3/094 ,  G01M11/00 ,  H01S3/30

CPC分类号： H01S3/1305 ,  G01M11/30 ,  G01M11/33 ,  G01M11/338 ,  H01S3/06754 ,  H01S3/094003 ,  H01S3/094038 ,  H01S3/094046 ,  H01S3/094076 ,  H01S3/094096 ,  H01S3/302 ,  H04B10/0797

摘要： An optical amplifier assembly for determining a parameter of an optical fibre configured to amplify an optical signal being propagated therethrough, the assembly comprising: at least one amplifier pump light source assembly configured to transmit light at a plurality of wavelengths into the optical fibre; a receiver configured to receive light that has propagated through at least part of the optical fibre; and a processor configured to determine the parameter of the optical fibre based on the received light.

公开(公告)号：US09640941B2

公开(公告)日：2017-05-02

申请号：US14820532

申请日：2015-08-06

申请人： Mox Networks, LLC

发明人： David Hochhalter

IPC分类号： H01S3/30 ,  H01S3/067 ,  H01S3/13 ,  H04B10/07 ,  H01S3/094 ,  H01S3/00 ,  H04B10/291 ,  H04B10/079

CPC分类号： H01S3/1301 ,  H01S3/0014 ,  H01S3/094003 ,  H01S3/094046 ,  H01S3/1305 ,  H01S3/302 ,  H04B10/07955 ,  H04B10/2916 ,  H04B2210/08

摘要： A distributed Raman amplifier system is disclosed. Distributed Raman amplifier systems can include a spool of fiber disposed between a distributed Raman amplifier and local or proximate optical point-loss sources, a carrier hotel for example. The spool of fiber has a fiber of sufficient length to offset aggregated losses, which prevents the distributed Raman amplifier from shutting down while also allowing the distributed Raman amplifier to achieve entitled gain by pumping the fiber in the spool.

公开(公告)号：US09450374B2

公开(公告)日：2016-09-20

申请号：US14849159

申请日：2015-09-09

申请人： MPB COMMUNICATIONS INC.

发明人： Vladimir Karpov ,  Daoping Wei ,  Wallace R. L. Clements

IPC分类号： H01S3/30 ,  H01S3/067 ,  H01S3/094 ,  H01S3/00 ,  H01S3/16

CPC分类号： H01S3/302 ,  H01S3/0092 ,  H01S3/067 ,  H01S3/06712 ,  H01S3/06754 ,  H01S3/094046 ,  H01S3/094053 ,  H01S3/094096 ,  H01S3/1618

摘要： There is provided a system for remote pumping of a Raman fiber amplifier comprising a pump laser located remotely from the Raman fiber amplifier and a laserhead and one or more optical fibers to optically couple the high power pump light from the remote pump laser to the Raman fiber amplifier where a seed laser light is amplified wherein the pump laser for producing a high power laser light of a predetermined pump wavelength comprises a first fiber laser emitting light at the predetermined pump wavelength and one (second) or two (third) laser emitting light at a wavelength lower than the predetermined pump wavelength and multiplexed with light from the first laser into an optical fiber providing Raman gain at the predetermined pump wavelength to convert the second (and optionally also the third) laser light to light at the predetermined pump wavelength.

摘要翻译： 提供了一种用于远程泵浦拉曼光纤放大器的系统，其包括位于远离拉曼光纤​​放大器的激光器和激光头以及一个或多个光纤以将来自远程泵浦激光器的高功率泵浦光光耦合到拉曼光纤 放大器，其中种子激光被放大，其中用于产生预定泵浦波长的大功率激光的泵浦激光包括以预定的泵浦波长发射光的第一光纤激光器和发射预定泵浦波长的一个（第二或第二（第三））激光发射光 比预定的泵浦波长低的波长并与来自第一激光的光复用到提供预定泵浦波长的拉曼增益的光纤，以将第二（和任选地）第三激光转换成预定泵浦波长的光。

公开(公告)号：US20160043527A1

公开(公告)日：2016-02-11

申请号：US14820532

申请日：2015-08-06

申请人： Mox Networks, LLC

发明人： David Hochhalter

IPC分类号： H01S3/13 ,  H01S3/094 ,  H01S3/10 ,  H01S3/30

CPC分类号： H01S3/1301 ,  H01S3/0014 ,  H01S3/094003 ,  H01S3/094046 ,  H01S3/1305 ,  H01S3/302 ,  H04B10/07955 ,  H04B10/2916 ,  H04B2210/08

摘要： A distributed Raman amplifier system is disclosed. Distributed Raman amplifier systems can include a spool of fiber disposed between a distributed Raman amplifier and local or proximate optical point-loss sources, a carrier hotel for example. The spool of fiber has a fiber of sufficient length to offset aggregated losses, which prevents the distributed Raman amplifier from shutting down while also allowing the distributed Raman amplifier to achieve entitled gain by pumping the fiber in the spool.

摘要翻译： 公开了一种分布式拉曼放大器系统。 分布式拉曼放大器系统可以包括布置在分布式拉曼放大器与本地或近端光点损耗源之间的光纤线轴，例如运营商酒店。 光纤线轴具有足够长度的光纤以抵消聚集的损耗，从而防止分布式拉曼放大器关闭，同时还允许分布式拉曼放大器通过泵送芯片中的光纤来获得额定增益。

公开(公告)号：US20160006209A1

公开(公告)日：2016-01-07

申请号：US14849159

申请日：2015-09-09

申请人： MPB COMMUNICATIONS INC.

发明人： Vladimir KARPOV ,  Daoping WEI ,  Wallace R. L. CLEMENTS

IPC分类号： H01S3/30 ,  H01S3/094 ,  H01S3/00 ,  H01S3/067

CPC分类号： H01S3/302 ,  H01S3/0092 ,  H01S3/067 ,  H01S3/06712 ,  H01S3/06754 ,  H01S3/094046 ,  H01S3/094053 ,  H01S3/094096 ,  H01S3/1618

摘要： There is provided a system for remote pumping of a Raman fiber amplifier comprising a pump laser located remotely from the Raman fiber amplifier and a laserhead and one or more optical fibers to optically couple the high power pump light from the remote pump laser to the Raman fiber amplifier where a seed laser light is amplified wherein the pump laser for producing a high power laser light of a predetermined pump wavelength comprises a first fiber laser emitting light at the predetermined pump wavelength and one (second) or two (third) laser emitting light at a wavelength lower than the predetermined pump wavelength and multiplexed with light from the first laser into an optical fiber providing Raman gain at the predetermined pump wavelength to convert the second (and optionally also the third) laser light to light at the predetermined pump wavelength.

摘要翻译： 提供了一种用于远程泵浦拉曼光纤放大器的系统，其包括位于远离拉曼光纤​​放大器的激光器和激光头以及一个或多个光纤以将来自远程泵浦激光器的高功率泵浦光光耦合到拉曼光纤 放大器，其中种子激光被放大，其中用于产生预定泵浦波长的大功率激光的泵浦激光包括以预定的泵浦波长发射光的第一光纤激光器和发射预定泵浦波长的一个（第二或第二（第三））激光发射光 比预定的泵浦波长低的波长并与来自第一激光的光复用到提供预定泵浦波长的拉曼增益的光纤，以将第二（和任选地）第三激光转换成预定泵浦波长的光。