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    • 2. 发明申请
    • DEPOLARIZED SEMICONDUCTOR LASER SOURCES
    • 分解半导体激光源
    • WO01082426A2
    • 2001-11-01
    • PCT/US2001/013670
    • 2001-04-26
    • H01S3/00H01S3/094H01S3/0941H01S5/062H01S5/065H01S5/14H01S5/00
    • H01S5/146H01S3/005H01S3/094003H01S3/094073H01S3/09415H01S5/06236H01S5/065H01S5/0652H01S5/0656
    • A semiconductor pump laser uses a depolarizer to depolarize the pump light entering the fiber amplifier. The depolarized light source is useful for reducing polarization dependent gain of fiber amplifiers. The pump laser includes one or more semiconductor, coherence-collapsed laser sources emitting polarized pump outputs, and one or more depolarizers disposed to depolarize the polarized pump output from the lasers. One or more fiber outputs are coupled to the one or more depolarizers to receive depolarized pump light. The depolarizer may include an N x M polarization preserving coupler having N inputs and M outputs, N and M being at least 2, an input to the depolarizer at a first coupler input, an output port from the depolarizer at a first coupler output. A polarization-controlling optical path is coupled between a second coupler output and a second coupler input. A polarization of light exiting the N X M coupler through the second coupler output is substantially orthogonal to a polarization of light entering the N x M coupler through the second coupler input.
    • 半导体泵激光器使用消偏振器去除进入光纤放大器的泵浦光。 去极化光源对于减少光纤放大器的偏振相关增益是有用的。 泵浦激光器包括一个或多个发射偏振泵浦输出的半导体,相干折叠激光源和一个或多个去偏振器,其被设置为使来自激光器的偏振泵输出去极化。 一个或多个光纤输出耦合到一个或多个去偏振器以接收去极化的泵浦光。 去偏振器可以包括具有N个输入和M个输出,N和M至少为2的N×M偏振保持耦合器,在第一耦合器输入处的去偏振器的输入,来自第一耦合器输出处的去偏振器的输出端口。 偏振控制光路耦合在第二耦合器输出和第二耦合器输入之间。 通过第二耦合器输出离开N X M耦合器的光的偏振基本上正交于通过第二耦合器输入进入N×M耦合器的光的偏振。
    • 3. 发明申请
    • MODULAR SET OF DEVICES FOR OPTICAL AMPLIFICATION OF SIGNAL BY RAMAN FIBER AMPLIFIER
    • 拉曼光纤放大器用于光信号放大的模块化设备
    • WO2010040324A1
    • 2010-04-15
    • PCT/CZ2009000116
    • 2009-10-02
    • CESNET ZAJMOVE SDRUZENI PRAVNIKARASEK MIROSLAVVOJTECH JOSEFRADIL JAN
    • KARASEK MIROSLAVVOJTECH JOSEFRADIL JAN
    • H01S3/0941H04B10/29H01S3/094H01S3/102H01S3/30
    • H01S3/094046H01S3/06754H01S3/0912H01S3/094073H01S3/094076H01S3/09408H01S3/094096H01S3/09415H01S3/10069H01S3/1022H01S3/302H01S2301/03H01S2301/04H01S2301/06
    • 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).
    • 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)。
    • 4. 发明申请
    • 無偏光光源装置およびラマン増幅器
    • 非极化光源器件和拉曼放大器
    • WO2003065522A1
    • 2003-08-07
    • PCT/JP2003/000729
    • 2003-01-27
    • 三菱電機株式会社十倉 俊之小暮 太一杉原 隆嗣本島 邦明
    • 十倉 俊之小暮 太一杉原 隆嗣本島 邦明
    • H01S5/02
    • H01S3/302H01S3/06754H01S3/094003H01S3/094073H01S5/146
    • A non-polarization exciting light source (5), wherein light output from a laser light source (1) is a substantially linearly polarized wave light having a plurality of mode components arranged at almost equal angular frequency intervals. Light output from the laser light source (1) is coupled with a polarization dispersion device (3) so that its polarization axis forms an angle of substantially 45 degrees with the polarization axis of the device (3). The device (3) gives to an incident light from the laser light source (1) a polarization dispersion amount not in the vicinity of 2pi/DELTAomega when a mode interval angular frequency is DELTAomega. As a result, an effectively-non-polarized light is output as an exciting light from the non-polarization exciting light source (5) although the optical path difference between polarization modes is shorter than a coherent length. Accordingly, Raman gain becomes less dependent on polarization in an optical fiber (7) which is a Raman medium into which non-polarized exciting light is injected.
    • 非偏振激励光源(5),其中从激光光源(1)输出的光是具有以几乎相等的角频率间隔排列的多个模式分量的基本线性偏振波光。 来自激光光源(1)的光输出与偏振分散装置(3)耦合,使得其偏振轴与装置(3)的偏振轴形成大致45度的角度。 当模式间隔角频率为DELTAomega时,装置(3)给出来自激光光源(1)的入射光不在2pi / DELTAomega附近的偏振色散量。 结果,尽管偏振模式之间的光程差比相干长度短,但是非有效非偏振光作为来自非偏振激发光源(5)的激发光被输出。 因此,拉曼增益对于注入非极化激发光的拉曼介质的光纤(7)的极化较小。
    • 6. 发明申请
    • WALK-OFF PUMP COUPLER
    • WO2017039794A1
    • 2017-03-09
    • PCT/US2016/039573
    • 2016-06-27
    • RAYTHEON COMPANY
    • STULTZ, RobertBOLAND, Brian
    • G02B27/10G02B27/28
    • H01S3/094073G02B27/1006G02B27/283G02B27/286H01S3/06754H01S3/094003
    • Method and apparatus for beam coupling. In one example, a beam coupler includes a first beam displacer configured to receive a linearly-polarized signal seed having a first wavelength, and an unpolarized pump beam having a second wavelength, the unpolarized pump beam including first and second linear polarization components, the first beam displacer being further configured to spatially translate the first linear polarization component to co-locate the first linear polarization component with the linearly-polarized signal seed, a second beam displacer configured to spatially translate the second linear polarization component and recombine the first and second linear polarization components of the unpolarized pump beam, and to co-locate the unpolarized pump beam with the linearly polarized signal seed, and a dual-wavelength waveplate interposed between the first and second beam displacer, and configured to rotate polarizations of each of the first linear polarization component, second linear polarization component, and linearly-polarized signal seed.
    • 光束耦合的方法和装置。 在一个示例中,光束耦合器包括被配置为接收具有第一波长的线性偏振信号种子的第一光束置换器和具有第二波长的非偏振泵浦光束,所述非偏振泵浦光束包括第一和第二线性偏振分量,第一 光束置换器被进一步配置为空间地平移第一线性偏振分量以将第一线性偏振分量与线性偏振信号种子共同定位,第二光束置换器被配置为空间地平移第二线性偏振分量并将第一和第二线性 所述非偏振泵浦光束的偏振分量,以及将所述非偏振泵浦光束与所述线性偏振信号种子共同定位,以及插入所述第一和第二光束置换器之间的双波长波片,并且被配置为旋转所述第一线性 偏振分量,第二线性偏振分量和线性 ly极化信号种子。