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1. 发明公开

EP3871299A1 ULTRAHIGH FIBER LASER SYSTEM WITH CONTROLLABLE OUTPUT BEAM INTENSITY PROFILE 审中-实审
公开(公告)号：EP3871299A1
公开(公告)日：2021-09-01
申请号：EP19893269.1
申请日：2019-12-03
申请人： IPG Photonics Corporation
发明人： SCHERBAKOV, Eugene , FOMIN, Valentin , ABRAMOV, Andrey , ABRAMOV, Mikhail , YAGODKIN, Dmitri
IPC分类号： H01S3/067 , H01S3/101 , H01S5/40

2. 发明公开

EP2795746A1 HIGH POWER FIBER LASER SYSTEM WITH DISTRIBUTIVE MODE ABSORBER 有权
标题翻译：为具有分配模式吸收器高纤维激光系统
公开(公告)号：EP2795746A1
公开(公告)日：2014-10-29
申请号：EP12859777.0
申请日：2012-12-19
申请人： IPG Photonics Corporation
发明人： GAPONTSEV, Valentin , FOMIN, Valentin , ABRAMOV, Mikhail , FERIN, Anton
IPC分类号： H01S3/098 , G02B6/02
CPC分类号： G02B6/03694 , G02B6/14 , H01S3/042 , H01S3/06745 , H01S3/06754 , H01S3/08045
摘要： A clad absorber unit is provided on a passive fiber of a high power fiber laser system and operative to trap and remove modes propagating along the waveguide clad of the fiber. The mode absorber is configured with such an optimal length that the clad light may be removed in a localized manner, substantially uniformly removed over the entire length thereof. The absorber removing clad light in a unformed fashion includes a host material impregnated with diffusers.

3. 发明授权

EP2795746B1 HIGH POWER FIBER LASER SYSTEM WITH DISTRIBUTIVE MODE ABSORBER 有权
公开(公告)号：EP2795746B1
公开(公告)日：2018-09-26
申请号：EP12859777.0
申请日：2012-12-19
申请人： IPG Photonics Corporation
发明人： GAPONTSEV, Valentin , FOMIN, Valentin , ABRAMOV, Mikhail , FERIN, Anton
IPC分类号： H01S3/098 , G02B6/02 , G02B6/28 , H01S3/067 , G02B6/14 , G02B6/036 , H01S3/08 , H01S3/042
CPC分类号： G02B6/03694 , G02B6/14 , H01S3/042 , H01S3/06745 , H01S3/06754 , H01S3/08045
摘要： A clad absorber unit is provided on a passive fiber of a high power fiber laser system and operative to trap and remove modes propagating along the waveguide clad of the fiber. The mode absorber is configured with such an optimal length that the clad light may be removed in a localized manner, substantially uniformly removed over the entire length thereof. The absorber removing clad light in a unformed fashion includes a host material impregnated with diffusers.

4. 发明公开

EP2801132A1 HIGH POWER METAL CLAD MODE ABSORBER 有权
标题翻译：金属包覆的高性能吸收器模式
公开(公告)号：EP2801132A1
公开(公告)日：2014-11-12
申请号：EP12860767.8
申请日：2012-12-19
申请人： IPG Photonics Corporation
发明人： GAPONSTSEV, Valentin , FOMIN, Valentin , ABRAMOV, Mikhail , FERIN, Anton
IPC分类号： H01S3/098 , G02B6/02
CPC分类号： G02B6/03694 , G02B6/14 , H01S3/0405 , H01S3/042 , H01S3/067 , H01S3/06708 , H01S3/06733 , H01S3/08045 , H01S3/094007
摘要： A clad absorber unit is provided on a passive fiber of a high power fiber laser system and operative to trap and remove high order modes propagating along the clad of the passive fiber, The mode absorber has a composition made from one or more liquid metals and alloys thereof which are placed in the opening formed in the sheath of the passive fiber. The composition is configured to remove from the cladding the MM light having a predetermined light power which heats the composition at a temperature lower than a threshold temperature at which the absorber may be damaged.

5. 发明授权

EP2965390B1 ULTRA HIGH POWER SINGLE MODE FIBER LASER SYSTEM WITH NON-UNIFORMLY CONFIGURED FIBER-TO FIBER ROD MULTIMODE AMPLIFIER 有权
公开(公告)号：EP2965390B1
公开(公告)日：2020-04-22
申请号：EP14760623.0
申请日：2014-03-06
申请人： IPG Photonics Corporation
发明人： FOMIN, Valentin , ABRAMOV, Mikhail , FERIN, Anton , SAMARTSEV, Igor , GAPONTSEV, Valentin
IPC分类号： H01S3/067 , H01S3/098 , H01S3/10 , H01S3/04 , H01S3/0941 , H01S3/00 , H01S3/094

6. 发明授权

EP2801132B1 HIGH POWER METAL CLAD MODE ABSORBER 有权
公开(公告)号：EP2801132B1
公开(公告)日：2018-11-14
申请号：EP12860767.8
申请日：2012-12-19
申请人： IPG Photonics Corporation
发明人： GAPONSTSEV, Valentin , FOMIN, Valentin , ABRAMOV, Mikhail , FERIN, Anton
IPC分类号： G02B6/14 , G02B6/02 , G02B6/036 , H01S3/067 , H01S3/08 , H01S3/042 , H01S3/04 , H01S3/094
CPC分类号： G02B6/03694 , G02B6/14 , H01S3/0405 , H01S3/042 , H01S3/067 , H01S3/06708 , H01S3/06733 , H01S3/08045 , H01S3/094007
摘要： A clad absorber unit is provided on a passive fiber of a high power fiber laser system and operative to trap and remove high order modes propagating along the clad of the passive fiber, The mode absorber has a composition made from one or more liquid metals and alloys thereof which are placed in the opening formed in the sheath of the passive fiber. The composition is configured to remove from the cladding the MM light having a predetermined light power which heats the composition at a temperature lower than a threshold temperature at which the absorber may be damaged.

7. 发明公开

EP2965390A1 ULTRA HIGH POWER SINGLE MODE FIBER LASER SYSTEM WITH NON-UNIFORMLY CONFIGURED FIBER-TO FIBER ROD MULTIMODE AMPLIFIER 有权
标题翻译：超高功率单模光纤激光系统，具有非均匀配置光纤到光纤多模放大器
公开(公告)号：EP2965390A1
公开(公告)日：2016-01-13
申请号：EP14760623.0
申请日：2014-03-06
申请人： IPG Photonics Corporation
发明人： FOMIN, Valentin , ABRAMOV, Mikhail , FERIN, Anton , SAMARTSEV, Igor , GAPONTSEV, Valentin
IPC分类号： H01S3/067 , H01S3/098 , H01S3/10
CPC分类号： H01S3/06708 , H01S3/005 , H01S3/0407 , H01S3/067 , H01S3/06745 , H01S3/06754 , H01S3/094007 , H01S3/094019 , H01S3/094053 , H01S3/094069 , H01S3/09408 , H01S3/09415 , H01S3/10
摘要： A high power fiber laser system includes a booster winch is configured as a fiber amplifier extending over free space, pump source and laser head including a reflective element which receives pump light and reflects toward the output end of the booster in a counter signal-propagating direction. The booster is configured with concentric and coextending frustoconically shaped (“MM”) core and cladding around the core. The core includes a mode transition region expanding between small diameter SM input and large diameter MM output core ends and configured so that amplification of high order modes is substantially suppressed as a single mode (“SM”) signal light propagates from the input to output core ends. The laser head receives output ends of respective pump light delivery fibers and signal fiber, respectively. The pump source is structured with a plurality of independent sub pumps arranged around the booster. The laser head supports a segmented mirror configured to reflect pump lights from respective pump sub-sources to the output end of the booster in a counter propagating direction, wherein the booster is configured to emit the amplified signal light reaching up to MW power levels substantially in the SM.
摘要翻译：一个高功率光纤激光系统包括一个增强器，该增强器配置为在自由空间上延伸的光纤放大器，泵浦源和激光头包括一个接收泵浦光的反射元件。在反向信号传播方向上朝着增强器的输出端反射。助推器配置有同心并共同延伸的截头圆锥形多模（“MM”）芯和包层。该芯包括在小直径SM输入和大直径MM输出芯端之间扩展的模式转换区，并且被配置为使得当单模（“SM”）信号光从输入到输出芯传播时高阶模的放大基本上被抑制结束。激光头分别接收输出，各个泵浦光传输光纤和信号光纤的端部。泵源构造有围绕增压器布置的多个独立的子泵。该激光头支持分段反射镜，该分段反射镜被配置为沿相反传播方向将来自各个泵子源的泵浦光反射到增强器的输出端，其中增强器被配置为发射达到MW功率电平的放大信号光， SM。

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