公开(公告)号：EP2169785A1

公开(公告)日：2010-03-31

申请号：EP09012100.5

申请日：2009-09-23

申请人： OFS Fitel, LLC

发明人： Nicholson, Jeffrey W.

IPC分类号： H01S3/067 ,  H01S3/11

CPC分类号： H01S3/06791 ,  H01S3/06712 ,  H01S3/06725 ,  H01S3/1118 ,  H01S3/1608 ,  H01S3/1618 ,  H01S2301/085

摘要： A passively modelocked fiber laser (10) utilizes a rare-earth-doped fiber section (12) as the gain medium, which exhibits a relatively high absorption (e.g., peak pump absorption > 50 dB/m) and relatively low dispersion (e.g., -20 ps/km-nm g

摘要翻译： 被动锁模光纤激光器（10）利用稀土掺杂光纤部分（12）作为增益介质，其表现出相对较高的吸收（例如，峰值吸收> 50dB / m）和相对较低的色散（例如， -20 ps / km-nm

公开(公告)号：EP2161797B1

公开(公告)日：2020-05-06

申请号：EP09011232.7

申请日：2009-09-01

申请人： OFS Fitel, LLC

发明人： Nicholson, Jeffrey W.

IPC分类号： H01S3/067 ,  H01S3/11

公开(公告)号：EP2110902B1

公开(公告)日：2018-10-24

申请号：EP09004741.6

申请日：2009-03-31

申请人： OFS Fitel, LLC

发明人： Nicholson, Jeffrey W. ,  Westbrook, Paul

IPC分类号： H01S3/067

CPC分类号： H01S3/06708 ,  H01S3/0675 ,  H01S3/06791

摘要： A fiber laser having at least one pair of reflectors coupled to an optical fiber, the at least one pair of reflectors defining an optical cavity between the at least one pair of reflectors and being configured to reflect light within the optical cavity. At least one light pump is coupled to the optical fiber and configured to provide pump light into the optical cavity, and at least one medium is positioned within the optical cavity and configured to generate signal light from the pump light in the optical cavity. Further, at least one grating positioned within the optical cavity and configured to couple the signal light out of the optical cavity.

公开(公告)号：EP3086420A2

公开(公告)日：2016-10-26

申请号：EP16162159.4

申请日：2016-03-24

申请人： OFS Fitel, LLC (a Delaware Limited Liability Company)

发明人： Nicholson, Jeffrey W. ,  Rosales-Garcia, Andrea ,  Ramakrishna, Supradeepa V.S.

IPC分类号： H01S3/067

CPC分类号： H01S3/06708 ,  H01S3/0078 ,  H01S3/067 ,  H01S3/06729 ,  H01S3/0675 ,  H01S3/094007 ,  H01S3/09408 ,  H01S3/10023 ,  H01S2301/02 ,  H01S2301/03

摘要： A technique is described for eliminating feedback light in a high-power optical device. An optical device is provided that generates, along an optical pathway, an output light at a desired signal wavelength, wherein the generation of the output light at the signal wavelength results in the generation of a feedback light at an undesired feedback wavelength. A port is provided at a selected location along the optical fiber pathway. The port is terminated with a length of a filter fiber, wherein the filter fiber has loss characteristics at the feedback wavelength that result in the elimination of feedback light from the optical fiber pathway through the port.

公开(公告)号：EP2113798B1

公开(公告)日：2014-06-25

申请号：EP09004466.0

申请日：2009-03-27

申请人： OFS Fitel, LLC

发明人： Nicholson, Jeffrey W. ,  Yablon, Andrew D.

IPC分类号： G02B6/32 ,  H01S3/00 ,  H01S3/067 ,  G02B6/02 ,  G02B6/028

CPC分类号： H01S3/0057 ,  G02B6/02019 ,  G02B6/02266 ,  G02B6/32 ,  H01S3/06725 ,  H01S3/1635

公开(公告)号：EP2161797A2

公开(公告)日：2010-03-10

申请号：EP09011232.7

申请日：2009-09-01

申请人： OFS Fitel, LLC

发明人： Nicholson, Jeffrey W.

IPC分类号： H01S3/067 ,  H01S3/11

摘要： A polarization-maintaining figure eight (PMFE) fiber laser is configured to generate ultrashort (femtosecond) output pulses by intentionally inserting asymmetry (in the form of a phase bias) into the bi-directional loop of the fiber laser. The introduction of asymmetry (via an asymmetric coupler, splice, attenuator, fiber bend, multiple amplifying sections, or the like) allows for an accumulation of phase difference within the bi-directional loop sufficient to create modelocking and generate ultrashort output pulses.

摘要翻译： 偏振维持图8（PMFE）光纤激光器被配置为通过有意将非对称性（以相位偏置的形式）插入到光纤激光器的双向环中来产生超短（飞秒）输出脉冲。 引入不对称性（通过非对称耦合器，接头，衰减器，光纤弯曲，多个放大部分等）允许双向环路内的相位差积累足以产生锁模并产生超短输出脉冲。