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公开(公告)号：US07212553B2
公开(公告)日：2007-05-01
申请号：US10802616
申请日：2004-03-16
IPC分类号： H01S3/10
CPC分类号： H01S5/146 , H01S3/094003 , H01S3/094007 , H01S5/12 , H01S5/4062
摘要： A fiber laser including doped-core fiber having inner and outer cladding is optically pumped by plurality of diode-lasers. Light emitted by the diode-lasers is coupled into a single multimode optical fiber. Light from the multimode optical fiber is directed to a wavelength selective reflecting device that is partially reflective in a narrow reflection band about a peak reflection wavelength. A portion of the light having the peak reflection wavelength is reflected from the wavelength selective reflecting device back along the multimode optical fiber and back into the plurality of diode-lasers. This locks the emitting wavelength of the light emitted from each of the diode-lasers to the peak reflection wavelength. Light at the emitting wavelength that is not reflected from the wavelength selective reflective device is coupled into the inner cladding of the doped-core fiber for optically pumping the fiber laser.
摘要翻译： 包括具有内包层和外包层的掺杂芯纤维的光纤激光器被多个二极管激光器光泵浦。 由二极管激光器发出的光耦合到单个多模光纤中。 来自多模光纤的光被引导到波长选择反射装置，该波长选择反射装置围绕峰值反射波长在窄反射带中部分反射。 具有峰值反射波长的一部分光从波长选择反射装置沿着多模光纤反射并返回到多个二极管激光器中。 这将从每个二极管激光器发射的光的发射波长锁定到峰值反射波长。 在没有从波长选择反射装置反射的发射波长处的光耦合到掺杂芯光纤的内包层中，用于光纤泵浦光纤激光器。
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公开(公告)号：US07139119B1
公开(公告)日：2006-11-21
申请号：US11492582
申请日：2006-07-25
CPC分类号： H01S3/06758 , H01S3/005 , H01S3/094003 , H01S3/2333 , H01S2301/02
摘要： A fiber amplifier module for amplifying a signal pulse includes an optically pumped double-pass fiber amplifier in which a fiber Bragg grating reflects an amplified pulse in between the first and second amplification passes, and transmits most forward-propagating amplified spontaneous emission (ASE) generated by the optical pumping. The reflected amplified pulse from the double-pass amplifier, and reverse-propagating ASE generated by the optical pumping are reflected from another fiber Bragg grating that again reflects the amplified pulse and transmits most of the ASE. The twice-reflected amplified pulse can be delivered from the amplifier as an output pulse or passed to another amplifier module for further amplification. The amplifier fiber is operated in a saturated or near saturated mode. This reduces amplification of any portion of the forward-propagating ASE that is reflected into reverse propagation by the fiber Bragg grating of the double-pass amplifier.
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公开(公告)号：US08717670B2
公开(公告)日：2014-05-06
申请号：US13163102
申请日：2011-06-17
CPC分类号： H01S3/10015 , H01S3/0092 , H01S3/06758 , H01S3/1302 , H01S3/1306
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US20090080467A1
公开(公告)日：2009-03-26
申请号：US11903638
申请日：2007-09-24
IPC分类号： H01S3/067
CPC分类号： H01S3/06754 , G02B6/29352 , H01S3/005
摘要： MOPA laser apparatus includes a master oscillator and a preamplifier providing a train of optical pulses. The pulse train is input to a fiber optic device arranged to multiply the pulse-repetition frequency (PRF) of the input pulse train. The PRF multiplying device divides each pulse in the into train into two pulses and delays one pulse relative to the other, some portion of one of the pulses and a portion of the other are delivered by the fiber optic PRF multiplying device as an output pulse-train having a PRF equal to twice the PRF of the input pulse train.
摘要翻译： MOPA激光装置包括主振荡器和提供一列光脉冲的前置放大器。 脉冲串被输入到布置成乘以输入脉冲序列的脉冲重复频率（PRF）的光纤装置。 PRF乘法装置将串列中的每个脉冲分成两个脉冲并相对于另一个脉冲延迟一个脉冲，一个脉冲的一部分和另一个的一部分由光纤PRF乘法装置输出作为输出脉冲 - 列车的PRF等于输入脉冲串PRF的两倍。
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公开(公告)号：US07286283B2
公开(公告)日：2007-10-23
申请号：US11375786
申请日：2006-03-15
申请人： Andrei Starodoumov
发明人： Andrei Starodoumov
IPC分类号： H04B10/12
CPC分类号： H01S3/06708 , H01S3/094003
摘要： Apparatus for optically pumping a clad amplifier fiber includes one or more transmission fibers arranged and configured to insert pump-light from a pump light source such as a diode-laser into the cladding of the amplifier fiber. The pump light propagates through the cladding and a portion of the pump light is absorbed in the doped core of the amplifier fiber. At least one of the transmission fibers is arranged to receive an unabsorbed portion of the propagated pump light from the amplifier cladding and re-insert the unabsorbed portion of the pump-light into the cladding for re-propagation through the cladding. This provides that pump light that would otherwise be wasted is circulated through the amplifier fiber for further absorption by the amplifier core.
摘要翻译： 用于光学泵浦包层放大器光纤的装置包括布置和配置为将泵浦光从诸如二极管激光器的泵浦光源插入到放大器光纤的包层中的一个或多个传输光纤。 泵浦光传播通过包层，并且泵浦光的一部分被吸收在放大器光纤的掺杂核心中。 传输光纤中的至少一个布置成从放大器包层接收传播的泵浦光的未吸收部分，并将泵浦光的未吸收部分重新插入到包层中，以通过包层重新传播。 这提供否则将被浪费的泵浦光通过放大器光纤循环，以便由放大器芯进一步吸收。
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26.发明申请Fiber-laser with intracavity polarization maintaining coupler providing plane polarized output 审中-公开具有腔内偏振保持耦合器的光纤激光器提供平面偏振输出公开(公告)号：US20060171426A1
公开(公告)日：2006-08-03
申请号：US11049412
申请日：2005-02-02
IPC分类号： H01S3/30
CPC分类号： H01S3/0675 , H01S3/06712
摘要： A fiber-laser comprises a laser cavity including a gain-fiber. A polarization maintaining fiber coupler (PM-coupler) located in the laser cavity and configured such that the fiber-laser delivers plane-polarized output radiation. The laser cavity may be configured as a linear cavity or as a ring cavity and operated in either cavity configuration in CW or pulsed modes. The PM-coupler, while providing the function of a intra-cavity polarizing element, can additionally function as a wavelength division multiplexing (WDM) coupler. Preferred embodiments of the laser include an intracavity polarization maintaining WDM element functioning jointly as an intra-cavity polarizing element and an element for coupling pump light into the cavity.
摘要翻译： 光纤激光器包括包括增益光纤的激光腔。 一种位于激光腔中的偏振维持光纤耦合器（PM耦合器），并被配置为使得光纤激光器传送平面偏振的输出辐射。 激光腔可以被配置为线性腔或环形空腔，并以CW或脉冲模式在腔体配置中工作。 PM耦合器在提供腔内偏振元件的功能的同时，可以另外用作波分复用（WDM）耦合器。 激光器的优选实施例包括腔内偏振维持WDM元件，其共同作为腔内偏振元件和用于将泵浦光耦合到空腔中的元件。
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公开(公告)号：US20090052016A1
公开(公告)日：2009-02-26
申请号：US11903339
申请日：2007-09-21
IPC分类号： H01S3/00
CPC分类号： H01S3/06754 , H01S3/005 , H01S3/0064 , H01S3/06712 , H01S3/06787 , H01S3/2333
摘要： Several examples of double-pass fiber amplifiers including a polarization maintaining (PM) gain-fiber are disclosed. In each example, input and twice-amplified output are separated by an all-fiber, polarization-maintaining polarization splitter combiner. In one example, light is first passed through a gain fiber in a first polarization direction and then is passed through the gain fiber in a second polarization direction. The light exits the splitter combiner in the first polarization direction.
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公开(公告)号：US07440181B2
公开(公告)日：2008-10-21
申请号：US11903392
申请日：2007-09-21
CPC分类号： H01S3/06754 , H01S3/005 , H01S3/0064 , H01S3/06712 , H01S3/06787 , H01S3/2333
摘要： Several examples of double-pass fiber amplifiers including a polarization maintaining (PM) gain-fiber are disclosed. In each example, input and twice-amplified output are separated by an all-fiber, polarization-maintaining polarization splitter combiner. One example includes a double-pass fiber amplifier which relies on a double pass through a 45 degree fiber based rotator to rotate the polarization of the light.
摘要翻译： 公开了包括偏振维持（PM）增益光纤的双通道光纤放大器的几个示例。 在每个示例中，输入和两倍放大的输出由全光纤，偏振保持偏振分束器组合器隔开。 一个例子包括双通道光纤放大器，其依赖于通过45度光纤旋转器的双通道来旋转光的偏振。
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公开(公告)号：US20060262388A1
公开(公告)日：2006-11-23
申请号：US11492582
申请日：2006-07-25
CPC分类号： H01S3/06758 , H01S3/005 , H01S3/094003 , H01S3/2333 , H01S2301/02
摘要： A fiber amplifier module for amplifying a signal pulse includes an optically pumped double-pass fiber amplifier in which a fiber Bragg grating reflects an amplified pulse in between the first and second amplification passes, and transmits most forward-propagating amplified spontaneous emission (ASE) generated by the optical pumping. The reflected amplified pulse from the double-pass amplifier, and reverse-propagating ASE generated by the optical pumping are reflected from another fiber Bragg grating that again reflects the amplified pulse and transmits most of the ASE. The twice-reflected amplified pulse can be delivered from the amplifier as an output pulse or passed to another amplifier module for further amplification. The amplifier fiber is operated in a saturated or near saturated mode. This reduces amplification of any portion of the forward-propagating ASE that is reflected into reverse propagation by the fiber Bragg grating of the double-pass amplifier.
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公开(公告)号：US07046432B2
公开(公告)日：2006-05-16
申请号：US10774743
申请日：2004-02-09
申请人： Andrei Starodoumov
发明人： Andrei Starodoumov
CPC分类号： H01S3/06708 , H01S3/094003
摘要： Apparatus for optically pumping a clad amplifier fiber includes one or more transmission fibers arranged and configured to insert pump-light from a pump light source such as a diode-laser into the cladding of the amplifier fiber. The pump light propagates through the cladding and a portion of the pump light is absorbed in the doped core of the amplifier fiber. At least one of the transmission fibers is arranged to receive an unabsorbed portion of the propagated pump light from the amplifier cladding and re-insert the unabsorbed portion of the pump-light into the cladding for re-propagation through the cladding. This provides that pump light that would otherwise be wasted is circulated through the amplifier fiber for further absorption by the amplifier core.
摘要翻译： 用于光学泵浦包层放大器光纤的装置包括布置和配置为将泵浦光从诸如二极管激光器的泵浦光源插入到放大器光纤的包层中的一个或多个传输光纤。 泵浦光传播通过包层，并且泵浦光的一部分被吸收在放大器光纤的掺杂核心中。 传输光纤中的至少一个布置成从放大器包层接收传播的泵浦光的未吸收部分，并将泵浦光的未吸收部分重新插入到包层中，以通过包层重新传播。 这提供否则将被浪费的泵浦光通过放大器光纤循环，以便由放大器芯进一步吸收。
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