公开(公告)号：US20090262761A1

公开(公告)日：2009-10-22

申请号：US12358012

申请日：2009-01-22

申请人： Victor Khitrov

发明人： Victor Khitrov

IPC分类号： H01S3/30

CPC分类号： H01S3/06754 ,  H01S3/06712 ,  H01S3/08045 ,  H01S3/09415 ,  H01S3/1618

摘要： Optical fiber source for providing polarized optical pulses, comprising a Q-switched fiber laser for providing substantially unpolarized seed pulses of optical energy, where the Q-switched fiber laser can comprise a laser cavity having a Q-switch and an optical fiber comprising a gain medium, where the optical fiber need not be a polarizing or polarization maintaining optical fiber; a passive polarizing element arranged to receive and substantially polarize the substantially unpolarized seed pulses; and a polarization maintaining fiber amplifier arranged for receiving the polarized seed pulses. The polarization maintaining fiber amplifier can comprise a selected polarizing or polarization maintaining fiber having a core comprising a gain medium for amplifying the substantially polarized seed pulses, where the core can be normally multimode at a an operating wavelength of the optical fiber source. The fiber amplifier can provide substantially polarized output pulses. In one practice of the invention, the pulse power instability, over at least 100 consecutive pulses, is no greater than 10%.

摘要翻译： 用于提供偏振光脉冲的光纤源，包括用于提供基本上非偏振的光能种子脉冲的Q开关光纤激光器，其中Q开关光纤激光器可以包括具有Q开关的激光腔和包括增益的光纤 介质，其中光纤不需要是偏振或偏振保持光纤; 无源偏振元件，被布置成接收和基本上极化基本上非偏振的种子脉冲; 以及设置用于接收极化种子脉冲的偏振保持光纤放大器。 偏振维持光纤放大器可以包括所选择的偏振或偏振保持光纤，其具有包括用于放大基本偏振的种子脉冲的增益介质的核，其中核可以在光纤源的工作波长处正常多模。 光纤放大器可以提供基本偏振的输出脉冲。 在本发明的一个实践中，在至少100个连续脉冲中的脉冲功率不稳定性不大于10％。

公开(公告)号：US08515220B1

公开(公告)日：2013-08-20

申请号：US13445404

申请日：2012-04-12

申请人： Victor Khitrov ,  David A. Rockwell

发明人： Victor Khitrov ,  David A. Rockwell

IPC分类号： G02B6/12 ,  G02B6/26 ,  G02B6/00 ,  G02B6/42

CPC分类号： G02B6/2848 ,  G02B6/02042 ,  G02B6/1245 ,  G02B6/14 ,  G02B6/2856 ,  G02B6/4296

摘要： An optical fiber coupler configured to couple signal beams into a non-circularly shaped output optical beam or device is provided. The coupler includes an adiabatically tapered optical device. The tapered optical device has a core taper ratio equal to the ratio between a second core diameter and a first core diameter and a mode taper ratio equal to the ratio between a second mode field diameter and a first mode field diameter. The mode taper ratio is greater than the core taper ratio. A spacing between adjacent cores at the output end is less than a spacing between adjacent cores at the input end by approximately the core taper ratio, thereby increasing brightness of a combined output optical signal relative to the combined brightness of the plurality of input optical fibers by approximately a factor equal to the ratio of the mode taper ratio to the core taper ratio.

摘要翻译： 提供了一种被配置为将信号束耦合到非圆形输出光束或装置中的光纤耦合器。 耦合器包括绝热锥形光学器件。 锥形光学装置的芯锥度比等于第二纤芯直径和第一纤芯直径之间的比率以及等于第二模场直径与第一模场直径之比的模锥度比。 模锥比大于芯锥比。 在输出端的相邻芯之间的间隔小于输入端的相邻芯之间的间距大致的芯锥度比，由此相对于多个输入光纤的组合亮度增加了组合输出光信号的亮度 大约等于模式锥度比与芯锥比的比率。

公开(公告)号：US07817683B2

公开(公告)日：2010-10-19

申请号：US12358012

申请日：2009-01-22

申请人： Victor Khitrov

发明人： Victor Khitrov

IPC分类号： H01S3/30

CPC分类号： H01S3/06754 ,  H01S3/06712 ,  H01S3/08045 ,  H01S3/09415 ,  H01S3/1618

摘要： Optical fiber source for providing polarized optical pulses, comprising a Q-switched fiber laser for providing substantially unpolarized seed pulses of optical energy, where the Q-switched fiber laser can comprise a laser cavity having a Q-switch and an optical fiber comprising a gain medium, where the optical fiber need not be a polarizing or polarization maintaining optical fiber; a passive polarizing element arranged to receive and substantially polarize the substantially unpolarized seed pulses; and a polarization maintaining fiber amplifier arranged for receiving the polarized seed pulses. The polarization maintaining fiber amplifier can comprise a selected polarizing or polarization maintaining fiber having a core comprising a gain medium for amplifying the substantially polarized seed pulses, where the core can be normally multimode at a an operating wavelength of the optical fiber source. The fiber amplifier can provide substantially polarized output pulses. In one practice of the invention, the pulse power instability, over at least 100 consecutive pulses, is no greater than 10%.

摘要翻译： 用于提供偏振光脉冲的光纤源，包括用于提供基本上非偏振的光能种子脉冲的Q开关光纤激光器，其中Q开关光纤激光器可以包括具有Q开关的激光腔和包括增益的光纤 介质，其中光纤不需要是偏振或偏振保持光纤; 无源偏振元件，被布置成接收和基本上极化基本上非偏振的种子脉冲; 以及设置用于接收极化种子脉冲的偏振保持光纤放大器。 偏振维持光纤放大器可以包括所选择的偏振或偏振保持光纤，其具有包括用于放大基本偏振的种子脉冲的增益介质的核，其中核可以在光纤源的工作波长处正常多模。 光纤放大器可以提供基本偏振的输出脉冲。 在本发明的一个实践中，在至少100个连续脉冲中的脉冲功率不稳定性不大于10％。