公开(公告)号：WO03029846A3

公开(公告)日：2003-09-12

申请号：PCT/US0222700

申请日：2002-07-18

Applicant: CORNING INC

Inventor： GROCHOCINSKI JAMES M ,  GRAY STUART ,  HURLEY JASON E ,  RIBBLE SR GARY A

IPC: H01S3/094 ,  H01S3/30 ,  H01S3/00

CPC classification number: H01S3/302 ,  H01S3/094003 ,  H01S2301/02 ,  H01S2301/06

Abstract: A method for amplifying optical signals and an optical amplifier (10) for accomplishing the same. An optical fiber (20) is coupled to a source of pump light (24) and a signal gain level is correlated to a dispersion value of the optical fiber (20) that corresponds to a local minimum power level of a cross-talk signal generated by four wave mixing. Optical signals are transmitted through the optical fiber while admitting sufficient pump light into the fiber from the source to attain the selected Raman gain level.

Abstract translation: 一种用于放大光信号的方法和用于实现该信号的光放大器（10）。 光纤（20）耦合到泵浦光源（24），并且信号增益电平与对应于所产生的串扰信号的局部最小功率电平的光纤（20）的色散值相关 通过四波混合。 光信号通过光纤传输，同时从源提供足够的泵浦光到光纤中，以获得选定的拉曼增益电平。

公开(公告)号：WO2003019823A1

公开(公告)日：2003-03-06

申请号：PCT/IB2002/003457

申请日：2002-08-27

Applicant: CEYBA INC. ,  GERTSVOLF, Marina ,  ROBINSON, Andrew ,  LUO, Baozhu, Steven ,  LAROSE, Robert ,  GHADBANE, James

Inventor： GERTSVOLF, Marina ,  ROBINSON, Andrew ,  LUO, Baozhu, Steven ,  LAROSE, Robert ,  GHADBANE, James

IPC: H04B10/18

CPC classification number: H04B10/2916 ,  H01S3/094046 ,  H01S3/094076 ,  H01S3/302 ,  H01S2301/02 ,  H01S2301/06 ,  H04B10/2563

Abstract: An improved method is provide.d for reducing four-wave mixing induced degradation in an optical data signal traversing an optical transport network that uses Raman amplifiers. The method includes: introducing at least two 5 Raman amplifiers into the optical transport network, each Raman amplifier having a laser source, and synchronously modulating the laser sources of the Raman amplifiers, thereby reducing four-wave mixing in the optical data signal. Modulation of the laser sources is performed at such a rate that crosstalk from the modulation to the optical data signals experiencing the Raman gain is minimized.

Abstract translation: 提供了一种改进的方法，用于减少穿过使用拉曼放大器的光传输网络的光数据信号中的四波混频引起的退化。 该方法包括：将至少两个5拉曼放大器引入到光传输网络中，每个拉曼放大器具有激光源，并同步调制拉曼放大器的激光源，从而减少光数据信号中的四波混频。 激光源的调制以使得经受拉曼增益的从调制到光学数据信号的串扰最小化的速率进行。

公开(公告)号：WO0001101A2

公开(公告)日：2000-01-06

申请号：PCT/US9913636

申请日：1999-06-18

Applicant: CORNING INC ,  CEREO RICHARD J ,  CULVERHOUSE DAVID O ,  MCNAMARA THOMAS W ,  SHEIH SHOU JONG

Inventor： CEREO RICHARD J ,  CULVERHOUSE DAVID O ,  MCNAMARA THOMAS W ,  SHEIH SHOU-JONG

IPC: H01S3/06 ,  H01S3/042 ,  H01S3/067 ,  H01S3/10 ,  H01S3/102 ,  H01S3/16 ,  H04B10/02 ,  H04B10/16 ,  H04B10/17 ,  H04B10/18 ,  H04J

CPC classification number: H04B10/296 ,  H01S3/06754 ,  H01S3/10007 ,  H01S3/1608 ,  H01S2301/04 ,  H01S2301/06

Abstract: Techniques for controlling the shape of the gain spectrum of an optical amplifier (13) based on the temperature and level of inversion of the amplifier's amplifying medium (20) are provided. An increase in temperature for an amplifying medium having a high level of inversion results in an increase in gain for longer wavelengths relative to shorter wavelengths, i.e., a counterclockwise tilt of the gain spectrum, while an increase in temperature for an amplifying medium having a lower level of inversion results in the opposite effect, i.e., a clockwise tilt. These effects can be used to compensate for changes in the operating conditions of the amplifier, e.g., to compensate for changes in signal powers. The effects of thermal tuning are especially useful in WDM systems employing multi-stage amplifiers.

Abstract translation: 提供了用于基于放大器的放大介质（20）的反相温度和电平来控制光放大器（13）的增益谱的形状的技术。 具有高反转水平的放大介质的温度升高导致相对于较短波长的较长波长的增益增加，即增益谱的逆时针倾斜，而具有较低波长的放大介质的温度升高 反转水平产生相反的效果，即顺时针倾斜。 这些效应可用于补偿放大器的工作条件的变化，例如补偿信号功率的变化。 热调谐的效果在采用多级放大器的WDM系统中特别有用。

公开(公告)号：WO1997012265A2

公开(公告)日：1997-04-03

申请号：PCT/US1996014234

申请日：1996-09-04

Applicant: LUCENT TECHNOLOGIES INC. ,  FATEHI, Mohammad, T. ,  IZADPANAH, Hossein

Inventor： LUCENT TECHNOLOGIES INC.

IPC: G02B00/00

CPC classification number: H01S3/06758 ,  H01S3/10015 ,  H01S3/1301 ,  H01S2301/06 ,  H04B10/077 ,  H04B10/07955

Abstract: An optical monitor tap in fiber optical amplifiers is achieved in a configuration with internal input signal monitoring taps, in accordance with the principles of the invention, by placing the tap some distance into the actual optical amplifier active fiber. This allows the system to monitor the integrity of the amplifier without impairing the quality of the associated signal. In an illustrative embodiment of the present invention, the amplifier is generally comprised of a long piece of rare-earth material doped fiber to which a fiber optic pump source is coupled via a wavelength divisional multiplexer (WDM) coupler. The tap is placed at some distance from the input of the fiber amplifier. The distance should be small enough such that there has been amplification of the signal but not so much as to have the signal saturated or compressed.

Abstract translation: 根据本发明的原理，通过将抽头一些距离放置到实际的光放大器有源光纤中，在具有内部输入信号监视抽头的配置中实现光纤放大器中的光学监视器抽头。 这允许系统监视放大器的完整性，而不会损害相关信号的质量。 在本发明的说明性实施例中，放大器通常由掺杂有稀土材料的光纤组成，光纤泵浦源通过波分复用器（WDM）耦合器耦合到光纤上。 水龙头放置在离光纤放大器输入一定距离处。 距离应该足够小，使得已经放大了信号，但是信号没有被饱和或被压缩。

公开(公告)号：WO2010040324A1

公开(公告)日：2010-04-15

申请号：PCT/CZ2009000116

申请日：2009-10-02

Applicant: CESNET ZAJMOVE SDRUZENI PRAVNI ,  KARASEK MIROSLAV ,  VOJTECH JOSEF ,  RADIL JAN

Inventor： KARASEK MIROSLAV ,  VOJTECH JOSEF ,  RADIL JAN

IPC: H01S3/0941 ,  H04B10/29 ,  H01S3/094 ,  H01S3/102 ,  H01S3/30

CPC classification number: H01S3/094046 ,  H01S3/06754 ,  H01S3/0912 ,  H01S3/094073 ,  H01S3/094076 ,  H01S3/09408 ,  H01S3/094096 ,  H01S3/09415 ,  H01S3/10069 ,  H01S3/1022 ,  H01S3/302 ,  H01S2301/03 ,  H01S2301/04 ,  H01S2301/06

Abstract: Modular set is formed by optical module (1) interconnected with control module (2) of electronic system. Optical module (1) is formed by at least two pairs (10, 11, 12, 13) of laser diodes connected in series and including Peltier cooler and thermistor, which are connected to inputs of polarizing fiber combiners (14, 15, 16, 17), and depolarized outputs of these polarizing fiber combiners are connected to inputs of a wavelengths combiner (18). Module (2) of the electronic system is formed by a control microprocessor (20) interconnected with direct current power supply source (21), with PID regulators (25) of laser diodes temperature, a display indicating temperature of individual laser diodes and current flowing through them, and a control panel. To the microprocessor (20) of the module (2) of the electronic system is connected a gate array (22) and to this gate array (22) are connected generators (23) of current impulses, which do not overlap in time, and their widths, repetition frequencies and amplitudes are adjustable, while the number of generators (23) of current impulses equals to the number of pairs (10-13) of laser diodes and their outputs are connected via power stages (24) to pairs (10-13) of laser diodes connected in series, and where to the power stages (24) is connected an analogue/digital converter (210), which is connected also to the microprocessor (20).

Abstract translation: 模块化组件由光学模块（1）与电子系统的控制模块（2）相互连接而成。 光学模块（1）由至少两对串联连接的激光二极管（10,11,12,13）形成，并且包括珀耳帖冷却器和热敏电阻，所述激光二极管连接到偏振光纤组合器（14,15,16， 17），并且这些偏振光纤组合器的去偏振输出端连接到波长组合器（18）的输入端。 电子系统的模块（2）由与直流电源（21）互连的控制微处理器（20）形成，具有激光二极管温度的PID调节器（25），显示单个激光二极管的温度和电流流动的显示器 通过他们和一个控制面板。 电子系统的模块（2）的微处理器（20）连接到门阵列（22），并且该门阵列（22）连接有电流脉冲的发生器（23），其在时间上不重叠，并且 它们的宽度，重复频率和振幅是可调的，而电流脉冲的发生器（23）的数量等于激光二极管的对（10-13）的数量，并且它们的输出通过功率级（24）连接到成对 -13）串联连接的激光二极管以及功率级（24）的何处连接到还连接到微处理器（20）的模拟/数字转换器（210）。

公开(公告)号：WO2008006859A1

公开(公告)日：2008-01-17

申请号：PCT/EP2007/057122

申请日：2007-07-11

Applicant: THALES ,  FALCOZ, Franck ,  CHERIAUX, Gilles

Inventor： FALCOZ, Franck ,  CHERIAUX, Gilles

IPC: H01S3/00

CPC classification number: H01S3/235 ,  H01S3/0057 ,  H01S3/1625 ,  H01S3/1636 ,  H01S3/2325 ,  H01S2301/06 ,  H01S2301/08

Abstract: La présente invention se rapporte à un procédé d'amplification à dérive de fréquence spatio-temporelle pour un laser impulsionnel comprenant une chaîne amplificatrice à dérive de fréquence, dite CPA (Chiiped Puise Amplification). L'invention consiste à étaler spatialement les différentes composantes spectrales et à amplifier séparément ces différentes composantes.

Abstract translation: 本发明涉及一种用于脉冲激光器的时空频率变换的放大方法，包括称为CPA（啁啾脉冲放大）的频率转换放大器。 本发明包括不同光谱分量的空间分离和所述组分的单独放大。

公开(公告)号：WO99019949A1

公开(公告)日：1999-04-22

申请号：PCT/KR1998/000313

申请日：1998-10-13

IPC: H01S3/06 ,  G02B6/00 ,  H01S3/067 ,  H01S3/07 ,  H01S3/17 ,  H01S3/23

CPC classification number: H01S3/06754 ,  H01S3/06708 ,  H01S2301/04 ,  H01S2301/06

Abstract: This invention relates to a fiber amplifier capable of reducing temperature dependent gain profile distortions. The fiber amplifier employs two different types of optical fibers. They are connected in series to compensate temperature dependent gain profile distortions.

Abstract translation: 本发明涉及能够降低与温度有关的增益曲线失真的光纤放大器。 光纤放大器采用两种不同类型的光纤。 它们串联连接以补偿与温度相关的增益曲线失真。

公开(公告)号：WO9712265A3

公开(公告)日：1997-04-24

申请号：PCT/US9614234

申请日：1996-09-04

Applicant: FATEHI MOHAMMAD T ,  IZADPANAH HOSSEIN ,  LUCENT TECHNOLOGIES INC

Inventor： FATEHI MOHAMMAD T ,  IZADPANAH HOSSEIN

IPC: H01S3/067 ,  H01S3/131 ,  H04B10/08 ,  H01S3/00

CPC classification number: H01S3/06758 ,  H01S3/10015 ,  H01S3/1301 ,  H01S2301/06 ,  H04B10/077 ,  H04B10/07955

Abstract: An optical monitor tap in fiber optical amplifiers is achieved in a configuration with internal input signal monitoring taps, in accordance with the principles of the invention, by placing the tap some distance into the actual optical amplifier active fiber. This allows the system to monitor the integrity of the amplifier without impairing the quality of the associated signal. In an illustrative embodiment of the present invention, the amplifier is generally comprised of a long piece of rare-earth material doped fiber (60, 62) to which a fiber optic pump source (26) is coupled via a wavelength divisional multiplexer (20) (WDM) coupler. The tap (64) is placed at some distance from the input (22) of the fiber amplifier. The distance should be small enough such that there has been amplification of the signal but not so much as to have the signal saturated or compressed.

公开(公告)号：WO1997002633A1

公开(公告)日：1997-01-23

申请号：PCT/JP1996001853

申请日：1996-07-04

Applicant: HITACHI, LTD. ,  NIPPON TELEGRAPH AND TELEPHONE CORPORATION ,  KOSAKA, Junya ,  SAKANO, Shinji ,  SATO, Yoshiaki ,  AIDA, Kazuo

Inventor： HITACHI, LTD. ,  NIPPON TELEGRAPH AND TELEPHONE CORPORATION

IPC: H01S03/10

CPC classification number: H04B10/2931 ,  H01S3/06754 ,  H01S3/1301 ,  H01S5/0683 ,  H01S5/06832 ,  H01S5/50 ,  H01S2301/06 ,  H03G3/3084

Abstract: A light amplifier having a simple arrangement in which control response is improved and light surge is decreased. In this arrangement, part of the output from a light amplification media (1) is passed through branching means (5) to means (6) for power detection. Based on the power detection, control means (7) controls at least one of an excitation source (2) and feedback means (4). The light from the branching means (3) is subjected to power control in the feedback means (4) and returned to the light amplification medium (1) through the branching means (3), so that the output from the light amplification medium (1) is kept at a desired power level while the occurrence of light surge is restricted. The present invention provides also a control method of the light amplification medium, and a system using the light amplifier.

Abstract translation: 具有简单布置的光放大器，其中控制响应得到改善并且光浪涌减小。 在这种布置中，来自光放大介质（1）的输出的一部分通过分支装置（5）传送到用于功率检测的装置（6）。 基于功率检测，控制装置（7）控制激励源（2）和反馈装置（4）中的至少一个。 来自分支装置（3）的光在反馈装置（4）中进行功率控制，并通过分支装置（3）返回到光放大介质（1），使得来自光放大介质（1）的输出 ）保持在期望的功率水平，同时光浪涌的发生被限制。 本发明还提供了光放大介质的控制方法和使用该光放大器的系统。

公开(公告)号：WO2013017338A1

公开(公告)日：2013-02-07

申请号：PCT/EP2012/062209

申请日：2012-06-25

Applicant: IMPERIAL INNOVATIONS LIMITED ,  MIDAZ LASERS LIMITED ,  DAMZEN, Michael, J. ,  SHADLOW, Peter

Inventor： DAMZEN, Michael, J. ,  SHADLOW, Peter

IPC: H01S3/082 ,  H01S3/11

CPC classification number: H01S3/082 ,  H01S3/08072 ,  H01S3/09415 ,  H01S3/11 ,  H01S3/115 ,  H01S3/117 ,  H01S3/235 ,  H01S5/10 ,  H01S5/1032 ,  H01S2301/06

Abstract: A method and apparatus for controlling the amplification of radiation in a laser gain are described. By using the controlling action of a secondary radiation path through the common gain element the gain, as seen by the primary radiation path, can be controlled or limited. In one particularly set of embodiments pertaining to laser pulse control of a laser cavity, a laser system is described that comprises first and second laser cavities each including a common laser gain medium. The first cavity incorporates a modulation element for variation of its cavity loss. A second cavity is employed that has a substantially distinct path or separable cavity mode from that of the first cavity. The laser threshold of the second cavity is set to a value intermediate to the extremes of the threshold for the first cavity, corresponding to the maximum and minimum loss available to the modulation element. As a result a more flexible control of laser pulsing and laser performance control is provided. Other embodiments of this invention allow improvement of laser performance through the control of the amplification of the output of a laser system through an external laser amplifier by utilising a secondary radiation path through the external amplifier.

Abstract translation: 描述了一种用于控制激光增益中的辐射放大的方法和装置。 通过使用通过公共增益元件的次级辐射路径的控制动作，可以控制或限制如主辐射路径所见的增益。 在关于激光腔的激光脉冲控制的一组特定实施例中，描述了包括第一和第二激光腔的激光系统，每个激光腔包括共同的激光增益介质。 第一腔体包含用于改变其空腔损耗的调制元件。 使用具有与第一腔体基本不同的路径或可分离腔模式的第二腔。 将第二腔的激光阈值设定为与第一腔的阈值的极值相对应的值，对应于调制元件可用的最大和最小损耗。 因此，提供了激光脉冲和激光器性能控制的更灵活的控制。 本发明的其他实施例允许通过利用通过外部放大器的次级辐射路径通过外部激光放大器控制激光系统的输出的放大来提高激光性能。