公开(公告)号：WO2013096364A8

公开(公告)日：2014-07-10

申请号：PCT/US2012070458

申请日：2012-12-19

Applicant: IPG PHOTONICS CORP ,  GAPONTSEV VALENTIN ,  FOMIN VALENTIN ,  ABRAMOV MIKHAIL ,  FERIN ANTON

Inventor： GAPONTSEV VALENTIN ,  FOMIN VALENTIN ,  ABRAMOV MIKHAIL ,  FERIN ANTON

IPC: H01S3/098 ,  G02B6/02

CPC classification number: G02B6/03694 ,  G02B6/14 ,  H01S3/042 ,  H01S3/06745 ,  H01S3/06754 ,  H01S3/08045

Abstract: 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.

Abstract translation: 在高功率光纤激光器系统的无源光纤上设置包层吸收单元，用于捕获和去除沿着光纤的波导包层传播的模式。 模式吸收器被配置有这样一个最佳长度，使得可以以局部方式去除包层光，在其整个长度上基本均匀地移除。 吸收剂去除包覆光以未成型的方式包括浸渍有扩散器的主体材料。

公开(公告)号：MX2021006519A

公开(公告)日：2021-09-10

申请号：MX2021006519

申请日：2019-12-03

Applicant: IPG PHOTONICS CORP

Inventor： SCHERBAKOV EUGENE ,  FOMIN VALENTIN ,  ABRAMOV ANDREY ,  ABRAMOV MIKHAIL ,  YAGODKIN DMITRI

IPC: H01S3/067 ,  H01S3/101 ,  H01S5/40

Abstract: El sistema láser totalmente de fibra de ultra alta potencia divulgado está configurado con múltiples láseres de fibra separados que producen haces de láser respectivos en trayectorias respectivas. El sistema divulgado está configurado además con un paquete de fibras cónico que incluye al menos una fibra de guía central y una pluralidad de fibras de guía periféricas. El sistema divulgado tiene además una fibra de entrega multicapa configurada con una sección transversal de cuello de botella doble y provista de al menos dos núcleos interior y exterior concéntricos y separados radialmente. El núcleo interior se acopla a las fibras de guía periféricas mientras que el núcleo interior se empalma con la fibra de guía central de modo que una salida del sistema emitida desde el núcleo interior de la fibra de entrega tenga una forma de haz diferente de la salida del sistema emitida desde el núcleo exterior.

公开(公告)号：EP2801132A4

公开(公告)日：2015-05-06

申请号：EP12860767

申请日：2012-12-19

Applicant: IPG PHOTONICS CORP

Inventor： GAPONSTSEV VALENTIN ,  FOMIN VALENTIN ,  ABRAMOV MIKHAIL ,  FERIN ANTON

IPC: G02B6/036 ,  G02B6/02 ,  G02B6/14 ,  H01S3/042 ,  H01S3/067 ,  H01S3/08

CPC classification number: G02B6/03694 ,  G02B6/14 ,  H01S3/0405 ,  H01S3/042 ,  H01S3/067 ,  H01S3/06708 ,  H01S3/06733 ,  H01S3/08045 ,  H01S3/094007

Abstract: 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.

公开(公告)号：EP2965390A4

公开(公告)日：2016-11-09

申请号：EP14760623

申请日：2014-03-06

Applicant: IPG PHOTONICS CORP

Inventor： FOMIN VALENTIN ,  ABRAMOV MIKHAIL ,  FERIN ANTON ,  SAMARTSEV IGOR ,  GAPONTSEV VALENTIN

IPC: H01S3/067 ,  H01S3/00 ,  H01S3/04 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/098 ,  H01S3/10

CPC classification number: 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

Abstract: 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.

公开(公告)号：EP2795746A4

公开(公告)日：2015-11-04

申请号：EP12859777

申请日：2012-12-19

Applicant: IPG PHOTONICS CORP

Inventor： GAPONTSEV VALENTIN ,  FOMIN VALENTIN ,  ABRAMOV MIKHAIL ,  FERIN ANTON

IPC: H01S3/098 ,  G02B6/02 ,  G02B6/036 ,  G02B6/14 ,  G02B6/28 ,  H01S3/042 ,  H01S3/067 ,  H01S3/08

CPC classification number: G02B6/03694 ,  G02B6/14 ,  H01S3/042 ,  H01S3/06745 ,  H01S3/06754 ,  H01S3/08045

Abstract: 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.