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    Powering up an optical amplifier in an optical line system
    1.
    发明授权
    Powering up an optical amplifier in an optical line system 有权

    公开(公告)号：US11658452B2

    公开(公告)日：2023-05-23

    申请号：US17173844

    申请日：2021-02-11

    申请人： Ciena Corporation

    发明人： Choudhury A. Al Sayeed ,  Bing Liu ,  Damian Flannery ,  Jean-Luc Archambault

    IPC分类号： H01S3/00 ,  H01S3/067 ,  H01S3/10

    CPC分类号： H01S3/06779 ,  H01S3/10015 ,  H01S3/10069 ,  H01S2301/02

    摘要： Optical line amplifiers with on-board controllers and supervisory devices for controlling optical line amplifiers are provided for controlling bootstrap or power-up procedures when optical line amplifiers are initially installed in an optical communication network. The controllers may include non-transitory computer-readable medium configured to store computer logic having instructions that, when executed, cause one or more processing devices to block an input to one or more gain units of the line amplifier and cause the line amplifier to operate in an Amplified Spontaneous Emission (ASE) mode. In response to a detection of a valid power level of the line amplifier, the instructions can further cause the one or more processing devices to switch the line amplifier from the ASE mode to a regular mode and unblock the input to the one or more gain units of the line amplifier to allow operation of the line amplifier in the regular operating mode.

    METHOD AND APPARATUS FOR CONTROLLING AND PROTECTING PULSED HIGH POWER FIBER AMPLIFIER SYSTEMS
    2.
    发明申请
    METHOD AND APPARATUS FOR CONTROLLING AND PROTECTING PULSED HIGH POWER FIBER AMPLIFIER SYSTEMS 审中-公开
    用于控制和保护脉冲高功率光纤放大器系统的方法和装置

    公开(公告)号：US20130329279A1

    公开(公告)日：2013-12-12

    申请号：US13967465

    申请日：2013-08-15

    申请人： IMRA AMERICA, INC.

    发明人： Salvatore F. NATI ,  Otho E. ULRICH, JR. ,  Gyu C. CHO, JR. ,  Wayne A. GILLIS, JR. ,  Donald J. HARTER, JR. ,  Mark BENDETT, JR. ,  Ingmar HARTL, JR.

    IPC分类号： H01S3/067 ,  H01S3/11

    CPC分类号： H01S3/06779 ,  H01S3/06758 ,  H01S3/0941 ,  H01S3/10015 ,  H01S3/1003 ,  H01S3/10038 ,  H01S3/10046 ,  H01S3/105 ,  H01S3/1112 ,  H01S3/1305 ,  H01S3/1312 ,  H01S3/1394

    摘要： An electronic circuit for controlling a laser system consisting of a pulse source and high power fiber amplifier is disclosed. The circuit is used to control the gain of the high power fiber amplifier system so that the amplified output pulses have predetermined pulse energy as the pulse width and repetition rate of the oscillator are varied. This includes keeping the pulse energy constant when the pulse train is turned on. The circuitry is also used to control the temperature of the high power fiber amplifier pump diode such that the wavelength of the pump diode is held at the optimum absorption wavelength of the fiber amplifier as the diode current is varied. The circuitry also provides a means of protecting the high power fiber amplifier from damage due to a loss of signal from the pulse source or from a pulse-source signal of insufficient injection energy.

    摘要翻译： 公开了一种用于控制由脉冲源和大功率光纤放大器组成的激光系统的电子电路。 该电路用于控制高功率光纤放大器系统的增益，使得放大的输出脉冲具有预定的脉冲能量，因为振荡器的脉冲宽度和重复率是变化的。 这包括当脉冲串打开时保持脉冲能量恒定。 该电路还用于控制高功率光纤放大器泵浦二极管的温度，使得当二极管电流变化时，泵浦二极管的波长保持在光纤放大器的最佳吸收波长。 电路还提供了保护大功率光纤放大器免受来自脉冲源的信号损失或由于注入能量不足的脉冲源信号的损害的手段。

    Optical power limiting amplifier
    3.
    发明授权
    Optical power limiting amplifier 失效
    光功率限制放大器

    公开(公告)号：US5579153A

    公开(公告)日：1996-11-26

    申请号：US52244

    申请日：1993-04-22

    申请人： Richard I. Laming ,  Michael N. Zervas

    发明人： Richard I. Laming ,  Michael N. Zervas

    IPC分类号： H01S3/067 ,  H01C3/06 ,  G02B6/26

    CPC分类号： H01S3/06758 ,  H01S3/06779

    摘要： In an optical amplifier, comprising a rare earth doped optical waveguide, in which signals at signal wavelength and pump power at pump wavelength are coupled together, a differential loss inducing means is located in a predetermined position along the length of the waveguide, causing a loss for the signal greater by a predetermined loss amount than the loss for the pump wavelength, said predetermined loss amount and said predetermined loss position being chosen in a mutual relationship to cause an amplification of lower power input signals, in said signal input power range, greater than the amplification of higher power input signals in said range, by an amount causing a substantially constant output power in a dynamic range of input signals greater than 15 dB.

    摘要翻译： 在包括稀土掺杂光波导的光放大器中，信号波长的信号和泵浦波长的泵浦功率耦合在一起，差分损耗感应装置位于沿波导长度的预定位置，导致损耗 为了使信号大于泵浦波长的损耗的预定损耗量，所述预定损耗量和所述预定损耗位置以相互关系选择，以使所述信号输入功率范围内较低功率输入信号的放大更大 比在所述范围内的较高功率输入信号的放大乘以在大于15dB的输入信号的动态范围内导致基本上恒定的输出功率的量。

    Method and apparatus for optical delivery fiber having cladding with absorbing regions
    5.
    发明授权
    Method and apparatus for optical delivery fiber having cladding with absorbing regions 有权
    用于具有吸收区域的包层的光纤传输光纤的方法和装置

    公开(公告)号：US07835608B2

    公开(公告)日：2010-11-16

    申请号：US11688854

    申请日：2007-03-20

    申请人： John D. Minelly ,  Jason D. Henrie

    发明人： John D. Minelly ,  Jason D. Henrie

    IPC分类号： G02B6/36

    CPC分类号： G02B6/03661 ,  G02B6/02052 ,  G02B6/03638 ,  G02B6/03644 ,  G02B6/266 ,  H01S3/06729 ,  H01S3/06779 ,  H01S3/094007 ,  H01S3/094019

    摘要： Apparatus and method for distributed absorption of pump light over a length of delivery fiber that is, for example in some embodiments, fusion spliced to an end of a multiply clad gain fiber that has significant unused pump light at the end of the gain fiber. In some embodiments, this includes coupling a fiber amplifier to a passive-core delivery fiber that includes a distributed pump dump. In some embodiments, at an output end of the amplifying fiber there is still a significant amount of pump power. If all this pump power is dumped in one small place (e.g., at a splice between the amplifying fiber and a passive delivery fiber) a hot spot will result, leading to unreliable devices that fail (have catastrophic changes in operating performance). The present invention provides a distributed pump dump built into a delivery fiber that is passive to the signal in its core.

    摘要翻译： 在一些实施例中，例如在一些实施例中，泵浦光的分布吸收的分布吸收的装置和方法被熔接到多包层增益光纤的末端，在增益光纤的末端具有显着的未使用的泵浦光。 在一些实施例中，这包括将光纤放大器耦合到包括分布式泵转储器的被动芯输送光纤。 在一些实施例中，在放大光纤的输出端仍然有大量的泵功率。 如果所有这些泵浦功率被倾倒在一个小的位置（例如，在放大光纤和被动传送光纤之间的接合处），将导致热点，导致不可靠的设备失效（具有操作性能的灾难性变化）。 本发明提供一种分布式泵转储器，其内置于对其核心信号无源的输送光纤中。

    Optical fiber amplifier surge protective apparatus
    6.
    发明授权
    Optical fiber amplifier surge protective apparatus 失效
    光纤放大器浪涌保护装置

    公开(公告)号：US06229643B1

    公开(公告)日：2001-05-08

    申请号：US09229610

    申请日：1999-01-13

    申请人： Keiji Nakamura

    发明人： Keiji Nakamura

    IPC分类号： H01S310

    CPC分类号： H01S3/06754 ,  H01S3/06779 ,  H01S3/10015

    摘要： An optical fiber amplifier surge protective apparatus includes an optical branch unit, an optical delay circuit, a light input hit detecting circuit, a compensation optical signal generating circuit, and an optical multiplexer. The optical branch unit branches an optical signal input from an optical fiber line into a main optical signal on a main optical path and a branch optical signal on a branch optical path. The optical delay circuit delays the main optical signal on the main optical path. The light input hit detecting circuit monitors the level of the branch optical signal on the branch optical path to detect an optical fiber line hit. The compensation optical signal generating circuit generates a compensation optical signal having a wavelength different from that of the optical signal input when the light input hit detecting circuit detects the optical fiber line hit. The optical multiplexer multiplexes the compensation optical signal from the compensation optical signal generating circuit and the delayed main optical signal from the optical delay circuit.

    摘要翻译： 光纤放大器浪涌保护装置包括光分支单元，光延迟电路，光输入命中检测电路，补偿光信号发生电路和光复用器。 光分支单元将从光纤线路输入的光信号分支到主光路上的主光信号和分支光路上的分支光信号。 光延迟电路延迟主光路上的主光信号。 光输入命中检测电路监视分支光路上的分支光信号的电平，以检测光纤线路命中。 当光输入命中检测电路检测到光纤线路命中时，补偿光信号产生电路产生具有与光信号输入波长不同的波长的补偿光信号。 光复用器将来自补偿光信号产生电路的补偿光信号和来自光延迟电路的延迟主光信号复用。

    High gain limiting erbium-doped fiber amplifier with wide dynamic range
    7.
    发明授权
    High gain limiting erbium-doped fiber amplifier with wide dynamic range 失效
    高增益限制铒掺杂光纤放大器，动态范围宽

    公开(公告)号：US5177634A

    公开(公告)日：1993-01-05

    申请号：US782675

    申请日：1991-10-25

    申请人： Winston I. Way

    发明人： Winston I. Way

    IPC分类号： H01S3/067

    CPC分类号： H01S3/06758 ,  H01S3/06779

    摘要： An optical limiting amplifier is disclosed having a high gain over a wide dynamic range of input power levels. The amplifier has an input stage (102) and an output stage (103), each of which includes an erbium-doped fiber amplifier (104, 106). The erbium-doped fiber amplifier in the input stage provides a high gain in order to saturate the amplifier in the second stage. The erbium-doped fiber amplifier in the output stage is fabricated with a small core diameter to saturate at reasonably small signal levels, and has a relatively lower total number of erbium ions in order to limit amplification once deep saturation is reached.

    摘要翻译： 公开了在宽动态范围的输入功率电平上具有高增益的光限幅放大器。 放大器具有输入级（102）和输出级（103），其中每一个都包括掺铒光纤放大器（104,106）。 输入级中的掺铒光纤放大器提供高增益，以使第二级放大器饱和。 输出级中的掺铒光纤放大器制造成具有较小的芯直径以在相当小的信号电平下饱和，并且具有相对较低的铒离子总数，以便在达到深度饱和时限制放大。