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    FIBER-MOPA APPARATUS FOR DELIVERING PULSES ON DEMAND
    3.
    发明申请
    FIBER-MOPA APPARATUS FOR DELIVERING PULSES ON DEMAND 有权
    用于传送需求脉冲的光纤摩尔装置

    公开(公告)号：US20120320450A1

    公开(公告)日：2012-12-20

    申请号：US13163102

    申请日：2011-06-17

    Applicant: Andrei STARODOUMOV ,  Ronald LAMBERT ,  Michael SNADDEN ,  Andreas DIENING

    Inventor： Andrei STARODOUMOV ,  Ronald LAMBERT ,  Michael SNADDEN ,  Andreas DIENING

    IPC: H01S3/067

    CPC classification number: H01S3/10015 ,  H01S3/0092 ,  H01S3/06758 ,  H01S3/1302 ,  H01S3/1306

    Abstract: A fiber-MOPA includes a seed-pulse source followed by fiber amplifier stages. The seed pulse source delivers signal pulses for performing a laser operation and delivers radiation between the seed pulses to maintain the collective average of the seed pulse power and intermediate radiation power constant. Keeping this average power constant keeps the instantaneous available gain of the fiber amplifier stages constant. This provides that the seed pulse delivery can be changed from one regime to a next without a period of instability between the regimes.

    Abstract translation: 光纤MOPA包括一个种子脉冲源，随后是光纤放大器级。 种子脉冲源传送用于执行激光操作的信号脉冲，并且在种子脉冲之间传送辐射以保持种子脉冲功率和中间辐射功率的总体平均值恒定。 保持该平均功率恒定可以保持光纤放大器级的瞬时可用增益恒定。 这提供了种子脉冲输送可以从一个状态改变到下一个状态，而不会在两个制度之间不稳定的时期。

    Optical amplifier
    5.
    发明授权
    Optical amplifier 有权
    光放大器

    公开(公告)号：US07538937B2

    公开(公告)日：2009-05-26

    申请号：US11364633

    申请日：2006-02-28

    Applicant: Shinichi Aozasa ,  Hiroji Masuda ,  Makoto Shimizu

    Inventor： Shinichi Aozasa ,  Hiroji Masuda ,  Makoto Shimizu

    IPC: H04B10/17 ,  H04B10/12

    CPC classification number: H04B10/296 ,  H01S3/005 ,  H01S3/0064 ,  H01S3/0078 ,  H01S3/06754 ,  H01S3/06758 ,  H01S3/094011 ,  H01S3/094023 ,  H01S3/10007 ,  H01S3/10023 ,  H01S3/1301 ,  H01S3/1302 ,  H01S3/131 ,  H01S3/1616 ,  H01S3/2383

    Abstract: An optical amplifier includes a rare-earth doped optical fiber or rare-earth doped optical waveguide serving as an amplification medium where rare-earth ions have been doped in its core and/or clad, an excitation mechanism for exciting the amplification medium, an optical resonator that causes laser oscillation at one or more wavelength of spontaneous emission light produced and amplified in the amplification medium, a monitoring mechanism that monitors a power of at least one light selected from a power of at least one light with at least one prescribed wavelength band selected from the light inputted to the amplification medium and a power of at least one light selected from a power of at least one light with at least one prescribed wavelength band selected from the light outputted from the amplification medium, and a control unit that controls the excitation mechanism based on a value from monitoring mechanism.

    Abstract translation: 光放大器包括稀土掺杂光纤或稀土掺杂光波导，其用作在其核和/或包层中掺杂稀土离子的放大介质，用于激发放大介质的激发机制，光学 谐振器，其在放大介质中产生和放大的自发发射光的一个或多个波长处引起激光振荡;监测机构，其监测从具有至少一个规定波长带的至少一个光的功率中选出的至少一个光的功率 从输入到放大介质的光中选择的光和从从放大介质输出的光中选择的至少一个规定波长带的至少一种光的功率中选择的至少一种光的功率;以及控制单元， 激励机制基于监测机制的价值。

    Apparatus and method for all-optical control of gain and gain flattening on an optical amplifier
    7.
    发明申请
    Apparatus and method for all-optical control of gain and gain flattening on an optical amplifier 失效
    光放大器增益和增益平坦化全光控制的装置和方法

    公开(公告)号：US20070133084A1

    公开(公告)日：2007-06-14

    申请号：US11601817

    申请日：2006-11-20

    Applicant: Bo Choi ,  Sang Lee ,  Chang Kim ,  Je Ko

    Inventor： Bo Choi ,  Sang Lee ,  Chang Kim ,  Je Ko

    IPC: H01S3/00 ,  H04B10/12

    CPC classification number: H01S3/1302 ,  H01S3/005 ,  H01S3/0064 ,  H01S3/0078 ,  H01S3/06758 ,  H01S3/1608 ,  H01S2301/04 ,  H04B10/294

    Abstract: Provided is an apparatus and method for all-optically controlling both a gain and a gain flattening. The apparatus includes: a first amplifier automatically controlling a gain of the apparatus through a feedback loop while amplifying a received optical signal; a fixed gain flattening unit receiving the amplified optical signal from the first amplifier and compensating for the gain according to a wavelength of the received optical signal; and a second amplifier automatically controlling the gain through a feedback loop while amplifying the optical signal input from the fixed gain flattening unit. Accordingly, even if the number of channels of an input WDM optical signal varies, both of a gain and a gain flattening can be all-optically controlled.

    Abstract translation: 提供了一种用于全光控制增益和增益平坦化的装置和方法。 该装置包括：第一放大器，通过反馈回路自动控制装置的增益，同时放大接收到的光信号; 固定增益平坦化单元，从第一放大器接收放大的光信号，并根据所接收的光信号的波长补偿增益; 并且第二放大器通过反馈环路自动地控制增益，同时放大从固定增益平坦化单元输入的光信号。 因此，即使输入WDM光信号的信道数量变化，增益和增益平坦化也可以全光控制。

    Gain clamped thulium-doped fiber amplification
    8.
    发明授权
    Gain clamped thulium-doped fiber amplification 失效
    增益夹紧ium掺杂光纤放大

    公开(公告)号：US06950232B1

    公开(公告)日：2005-09-27

    申请号：US10390464

    申请日：2003-03-17

    Applicant: Scott Sze Hong Yam

    Inventor： Scott Sze Hong Yam

    IPC: H01S3/00 ,  H01S3/067 ,  H01S3/094 ,  H01S3/13 ,  H01S3/16 ,  H04B10/12 ,  H04B10/17

    CPC classification number: H01S3/1302 ,  H01S3/005 ,  H01S3/0064 ,  H01S3/0078 ,  H01S3/06775 ,  H01S3/094003 ,  H01S3/1616 ,  H04B10/296

    Abstract: An optical amplifier system is disclosed comprising a Thulium-doped fiber span, a pump system, and a feedback loop. The Thulium-doped fiber span receives input optical signals. The pump system pumps light having a wavelength in the range of 1049 nm to 1060 nm onto the Thulium-doped fiber span. The light amplifies the input optical signals to generate amplified optical signals. The Thulium-doped fiber span transfers the amplified optical signals. The feedback loop receives at least one wavelength of amplified emissions from the Thulium-doped fiber span. The feedback loop generates optical feedback signals based the wavelength or wavelengths of the amplified emissions. The feedback loop adds the optical feedback signals to the input optical signals to provide clamping of a gain in the amplified optical signals.

    Abstract translation: 公开了一种光放大器系统，其包括ium掺杂光纤跨距，泵系统和反馈回路。 ium掺杂光纤跨接接收输入光信号。 泵系统将具有在1049nm至1060nm范围内的波长的光泵送到掺doped光纤跨度上。 光放大输入光信号以产生放大的光信号。 ium掺杂光纤跨度传送放大的光信号。 反馈环路接收来自ium掺杂光纤跨距的至少一个放大发射波长。 反馈回路基于放大发射的波长或波长产生光反馈信号。 反馈环路将光学反馈信号添加到输入光信号，以提供放大的光信号中的增益的钳位。

    Method and system for automatic raman gain control
    9.
    发明申请
    Method and system for automatic raman gain control 失效
    自动拉曼增益控制的方法和系统

    公开(公告)号：US20020163635A1

    公开(公告)日：2002-11-07

    申请号：US09824798

    申请日：2001-04-04

    Inventor： Paul M. Reepschlager ,  Patrick Pilot

    IPC: G01N021/00

    CPC classification number: H01S3/302 ,  H01S3/1302 ,  H01S3/1305

    Abstract: The present invention provides a closed loop control strategy using system wavelength profile information to provide accurate derivation of Raman gain in a fiber optic span. The present invention overcomes prior art limitations in which a desired Raman gain is estimated on the basis of a modeled solution, without taking into account the dynamic nature of the system span profiles. The method and system according to the present invention provide an improved method of calculating Raman gain which permits dynamic adjustments to system parameters, thus correcting gain inaccuracies induced by the application of known models and permitting an accurate derivation of the Raman gain. Cost-effective optical spectrum analyzers are used to monitor wavelength profiles, which permits the mapping of transmit and receive profiles within a span. This mapping information is then collected in a central location, such that the Raman gain within the span may be derived.

    Abstract translation: 本发明提供使用系统波长分布信息的闭环控制策略，以提供在光纤跨度内的拉曼增益的精确推导。 本发明克服了现有技术的限制，其中在不考虑系统跨度曲线的动态特性的情况下，基于建模的解决方案来估计所需的拉曼增益。 根据本发明的方法和系统提供了一种计算拉曼增益的改进方法，其允许对系统参数进行动态调整，从而校正由已知模型应用引起的增益不准确性，并允许拉曼增益的准确推导。 经济高效的光谱分析仪用于监测波长分布，允许在一个跨度范围内映射发射和接收轮廓。 然后将该映射信息收集在中心位置，使得可以导出跨度内的拉曼增益。

    Inhomogeneous broadening to modify the gain of an optical amplifier
    10.
    发明授权
    Inhomogeneous broadening to modify the gain of an optical amplifier 有权
    不均匀的加宽以修改光放大器的增益

    公开(公告)号：US06356385B1

    公开(公告)日：2002-03-12

    申请号：US09245554

    申请日：1999-02-05

    Applicant: Michel J. F. Digonnet ,  Silviu Savin

    Inventor： Michel J. F. Digonnet ,  Silviu Savin

    IPC: H01S300

    CPC classification number: H04B10/296 ,  H01S3/094042 ,  H01S3/1302 ,  H01S3/131 ,  H01S3/1608 ,  H01S3/1691 ,  H01S2301/04

    Abstract: An optical amplifier has a gain profile which is substantially flat and independent, over a wide range, of the pump power, power of the input signals, and the number of input signals. The amplifier utilizes an optical resonator having a gain medium whose gain broadening behaves inhomogeneously by pumping the gain medium at at least one wavelength in at least one absorption tail of the gain medium. The resonator is a ring resonator that preferably includes an erbium-doped fiber. Codopants may be added to the fiber to enhance the inhomogeneous broadening effect. A method of gain flattening introduces a pump signal into a gain medium. The pump signal has a wavelength in the tail of the absorption profile of the gain medium. A plurality of optical signals at different wavelengths are introduced into the gain medium. Stimulated emission within the gain medium clamps the gain of the gain medium.

    Abstract translation: 光放大器具有在泵浦功率，输入信号的功率和输入信号数量的大范围内基本平坦且独立的增益分布。 放大器利用具有增益介质的光谐振器，其增益增宽通过在增益介质的至少一个吸收尾部中以至少一个波长泵浦增益介质而非均匀地表现。 谐振器是优选包括铒掺杂光纤的环形谐振器。 可以将纤维素添加到纤维中以增强不均匀的加宽效果。 增益平坦化的方法将泵浦信号引入增益介质。 泵浦信号在增益介质的吸收曲线的尾部具有波长。 将不同波长的多个光信号引入到增益介质中。 增益介质内的受激发射夹着增益介质的增益。

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