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公开(公告)号：US12113574B2
公开(公告)日：2024-10-08
申请号：US17448644
申请日：2021-09-23
申请人： II-VI Delaware, Inc
发明人： Martin R. Williams , Yajun Wang , Eric Timothy Green , Aravanan Gurusami , Deepak Devicharan , Timothy Kent Zahnley , Mike Burgess
IPC分类号： H04B10/297 , H01S3/067
CPC分类号： H04B10/2972 , H01S3/06787 , H04B10/2971
摘要： A colorless mux/demux cable assembly, including a first fiber optic cable, a second fiber optic cable, and a main body that includes an N:1 optical combiner and a 1:N optical splitter. The N:1 optical combiner is configured to combine individual optical signals received by each of N input fibers of the second fiber optic cable and provide a combined output signal to an output fiber of the first fiber optic cable. The 1:N optical splitter is configured to split a combined input optical signal (having N wavelength channels) received via an input fiber of the first fiber optic cable and provide a split output signal comprising each of the N wavelength channels to each of N output fibers of the second fiber optic cable.
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公开(公告)号：US12062882B2
公开(公告)日：2024-08-13
申请号：US18104995
申请日：2023-02-02
申请人： II-VI Delaware, Inc.
IPC分类号： H01S3/13 , H01S3/094 , H01S3/10 , H04B10/077
CPC分类号： H01S3/13013 , H01S3/094003 , H01S3/10015 , H04B10/0777 , H01S2301/04
摘要： A system for communicating supervisory information between amplifier nodes in an optical communication network utilizes modulation of an included pump source to superimpose the supervisory information on data signals (typically customer data signals) propagating between the amplifier nodes transmitted customer signals. The modulated pump appears as a modulated envelope on the amplified data signal exiting the amplifier node, and may be recovered by suitable demodulation components located at the second node (i.e., the destined receiver of the supervisory information). The supervisory information may include monitoring messages, provisioning data, protocol updates, etc., and is utilized as an input to an included modulator, which then forms a drive signal for the pump controller.
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公开(公告)号：US10727643B1
公开(公告)日：2020-07-28
申请号：US16268315
申请日：2019-02-05
申请人： II-VI Delaware, Inc.
发明人： Martin R. Williams , Timothy K. Zahnley , Thomas W. McNamara , Aravanan Gurusami , Scott Dahl , Siegfried Fleischer
摘要： A fiber-based master optical power amplifier (MOPA) is configured to utilize a pump source that operates in pulse mode with the arrival time of the pump pulses coordinated with the arrival time of the input pulses. The width of the pump pulses is also controlled, thus providing a mechanism for controlling both the amount of pump energy injected into the fiber amplifier, as well as the overlap in time between the pump pulse and the seed pulse. As the pulse repetition interval (PRI) of the input seed pulse changes, the timing of the pump pulses and their width are also changed so that a “constant gain” environment is created within the amplifying medium, providing an essentially constant energy output pulse, regardless of differences in ASE generated during different PRIs.
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公开(公告)号：US20220190546A1
公开(公告)日：2022-06-16
申请号：US17119425
申请日：2020-12-11
申请人： II-VI DELAWARE, INC.
发明人： Martin R. Williams
摘要： The present disclosure generally relates optical amplifier modules. In one form for example, an optical amplifier module includes a booster optical amplifier configured to increase optical power of a first optical signal. The module also includes a preamp optical amplifier configured to increase optical power of a second optical signal and a pump laser optically coupled to the booster optical amplifier and the preamp optical amplifier. The pump laser is configured to provide a booster power to the booster optical amplifier and a preamp power to the preamp optical amplifier, the preamp power is effective to induce a gain in optical power to provide a target optical power of the second optical signal from the preamp optical amplifier, and the booster power is dependent on the preamp power.
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公开(公告)号：US20220085889A1
公开(公告)日：2022-03-17
申请号：US17448644
申请日：2021-09-23
申请人： II-VI Delaware, Inc
发明人： Martin R. Williams , Yajun Wang , Eric Timothy Green , Aravanan Gurusami , Deepak Devicharan , Timothy Kent Zahnley , Mike Burgess
IPC分类号： H04B10/297 , H01S3/067
摘要： A pluggable bidirectional optical amplifier module may include preamp and booster optical amplifiers and a housing. The preamp optical amplifier may be configured to amplify optical signals traveling in a first direction. The booster optical amplifier may be configured to amplify optical signals traveling in a second direction. The housing may at least partially enclose the preamp optical amplifier and the booster optical amplifier. The pluggable bidirectional optical amplifier module may have a mechanical form factor that is compliant with a pluggable communication module form factor MSA. A colorless mux/demux cable assembly may be operated with the pluggable bidirectional optical amplifier. The colorless mux/demux cable assembly may include a 1:N optical splitter a N:1 optical combiner coupled side-by-side to the 1:N optical splitter, a first fiber optic cable optic cable, and a second fiber optic cable.
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公开(公告)号：US20210281323A1
公开(公告)日：2021-09-09
申请号：US16812186
申请日：2020-03-06
申请人： II-VI DELAWARE, INC.
发明人： Martin R. Williams , Yajun Wang , Eric Timothy Green , Aravanan Gurusami , Deepak Devicharan , Timothy Kent Zahnley , Mike Burgess
IPC分类号： H04B10/297 , H01S3/067
摘要： A pluggable bidirectional optical amplifier module may include preamp and booster optical amplifiers and a housing. The preamp optical amplifier may be configured to amplify optical signals traveling in a first direction. The booster optical amplifier may be configured to amplify optical signals traveling in a second direction. The housing may at least partially enclose the preamp optical amplifier and the booster optical amplifier. The pluggable bidirectional optical amplifier module may have a mechanical form factor that is compliant with a pluggable communication module form factor MSA. A colorless mux/demux cable assembly may be operated with the pluggable bidirectional optical amplifier. The colorless mux/demux cable assembly may include a 1:N optical splitter a N:1 optical combiner coupled side-by-side to the 1:N optical splitter, a first fiber optic cable optic cable, and a second fiber optic cable.
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公开(公告)号：US20240310242A1
公开(公告)日：2024-09-19
申请号：US18121641
申请日：2023-03-15
申请人： II-VI Delaware, Inc.
发明人： Martin R. Williams
CPC分类号： G01M11/30 , G02B3/0087 , G02B17/0876
摘要： A bidirectional optical power monitor is disclosed that is used as an in-line monitor along a section of bidirectional optical fiber. The optical power monitor includes a bidirectional assembly of a lensing arrangement with a partially reflective element coupled to an output of the lensing arrangement. The reflective element directs small portions of optical signals propagating in each direction into separate ones of a pair of photodiodes (allowing for simultaneous measurement of power propagating in both directions along an optical fiber). The reflective element directs the majority of the optical signals through the lensing arrangement a second time and thereafter coupled into the proper section of optical fiber such that a continuity of signal propagation direction is maintained.
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公开(公告)号：US20220393423A1
公开(公告)日：2022-12-08
申请号：US17337366
申请日：2021-06-02
申请人： II-VI Delaware, Inc
发明人： Martin R. Williams
摘要： A system has fiber amplifiers that amplify a seed signal into a high power signal. Control circuity drives the fiber amplifiers. An auxiliary broad-linewidth signal can be selectively introduced to mitigate the onset of Stimulated Brillouin Scattering (SBS) when the primary input seed source does not meet the requirements of power and/or linewidth. To determine whether to mitigate SBS, an input photodiode can detect the seed signal, and the control circuity can detect an operational parameter associated with a detected signal indicative of an onset of SBS on the optical path. In response to the detection, the control circuitry introduces an auxiliary broad-linewidth signal from a broad-linewidth source, which can mitigate the onset of SBS on the optical path.
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公开(公告)号：US20210135425A1
公开(公告)日：2021-05-06
申请号：US16672316
申请日：2019-11-01
申请人： II-VI Delaware, Inc.
摘要： A system and method for communicating supervisory information between amplifier nodes in an optical communication network utilizes modulation of an included pump source to superimpose the supervisory information on through-transmitted customer signals (or ASE associated with the amplifier if no customer traffic is present). The supervisory information (which may include monitoring messages, provisioning data, protocol updates, and the like) is utilized as an input to an included modulator, which then forms a drive signal for the pump controller. In a preferred embodiment, binary FSK modulation is used.
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公开(公告)号：US20200251877A1
公开(公告)日：2020-08-06
申请号：US16268315
申请日：2019-02-05
申请人： II-VI Delaware, Inc.
发明人： Martin R. Williams , Timothy K. Zahnley , Thomas W. McNamara , Aravanan Gurusami , Scott Dahl , Siegfried Fleischer
摘要： A fiber-based master optical power amplifier (MOPA) is configured to utilize a pump source that operates in pulse mode with the arrival time of the pump pulses coordinated with the arrival time of the input pulses. The width of the pump pulses is also controlled, thus providing a mechanism for controlling both the amount of pump energy injected into the fiber amplifier, as well as the overlap in time between the pump pulse and the seed pulse. As the pulse repetition interval (PRI) of the input seed pulse changes, the timing of the pump pulses and their width are also changed so that a “constant gain” environment is created within the amplifying medium, providing an essentially constant energy output pulse, regardless of differences in ASE generated during different PRIs.
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