公开(公告)号：US20160119063A1

公开(公告)日：2016-04-28

申请号：US14522836

申请日：2014-10-24

Applicant: Lumentum Operations LLC

Inventor： James Yonghong GUO ,  Lei Xu

IPC: H04B10/572 ,  H04B10/50 ,  H04J14/02

CPC classification number: H04B10/572 ,  H01S5/02252 ,  H01S5/141 ,  H01S5/146 ,  H01S5/4062 ,  H01S5/4068 ,  H01S5/4087 ,  H04B10/503 ,  H04B10/506 ,  H04J14/02

Abstract: The disclosure relates to wavelength stabilization and wavelength multiplexing of multiple high-power multi-mode semiconductor lasers. The lasers are wavelength-stabilized in free space using multi-peak output reflectors to wavelength-lock their output at different reflection wavelength in dependence on operating conditions, to reduce output reflectivity required for locking and increase output power. Selecting output reflectors having different non-overlapping sets of reflectivity peaks for different lasers or groups of lasers enables combining their output by wavelength multiplexing.

Abstract translation: 本公开涉及多个高功率多模半导体激光器的波长稳定和波长复用。 激光器在自由空间中波长稳定，使用多峰输出反射器根据操作条件波长锁定其在不同反射波长的输出，以减少锁定所需的输出反射率并增加输出功率。 选择具有不同激光器组或不同激光器组的反射率峰值不同的输出反射器，可以通过波长复用来组合其输出。

公开(公告)号：US20160109656A1

公开(公告)日：2016-04-21

申请号：US14517165

申请日：2014-10-17

Applicant: Lumentum Operations LLC

Inventor： Richard L. Duesterberg ,  Lei Xu ,  Yan Xiao

IPC: G02B6/26 ,  G02B6/38

CPC classification number: G02B6/262 ,  G02B6/3813 ,  G02B6/3826

Abstract: Fiber burning and/or overheating of the fiber feedthrough in high-power laser modules, which may cause catastrophic and/or collateral damage, may be addressed by providing an optical fiber assembly designed to withstand overheating due to errant high power laser light that is directed toward the input core of a fiber but may be at least partially misaligned. The optical fiber may be secured within a mount having a passageway such that the end face of the optical fiber extends past an opening of the passageway to a focal plane of the incident light. The end of the optical fiber may include a section that has a reduced or absent cladding layer (e.g., etched to form a tapered cladding region) so as to reduce the amount of light captured by the cladding and/or to leak the light out quickly.

Abstract translation: 可能导致灾难性和/或附带损伤的大功率激光模块中的光纤馈通的光纤燃烧和/或过热可以通过提供一种光纤组件来解决，该光纤组件被设计成由于导向的错误的高功率激光而承受过热 朝向纤维的输入芯，但可以至少部分地不对准。 光纤可以固定在具有通道的安装件中，使得光纤的端面经过通道的开口延伸到入射光的焦平面。 光纤的端部可以包括具有减小或不存在的包层（例如，蚀刻以形成锥形包层区域）的部分，以便减少由包层捕获的光量和/或快速泄漏光 。

公开(公告)号：US10014951B2

公开(公告)日：2018-07-03

申请号：US15173235

申请日：2016-06-03

Applicant: Lumentum Operations LLC

Inventor： James Yonghong Guo ,  Lei Xu

IPC: H01S5/068 ,  H04B10/572 ,  H04J14/02 ,  H04B10/50 ,  H01S5/14 ,  H01S5/40 ,  H01S5/022

CPC classification number: H04B10/572 ,  H01S5/02252 ,  H01S5/141 ,  H01S5/146 ,  H01S5/4062 ,  H01S5/4068 ,  H01S5/4087 ,  H04B10/503 ,  H04B10/506 ,  H04J14/02

Abstract: The invention relates to wavelength stabilization and wavelength multiplexing of multiple high-power multi-mode semiconductor lasers. The lasers are wavelength-stabilized in free space using multi-peak output reflectors to wavelength-lock their output at different reflection wavelength in dependence on operating conditions, to reduce output reflectivity required for locking and increase output power. Selecting output reflectors having different non-overlapping sets of reflectivity peaks for different lasers or groups of lasers enables combining their output by wavelength multiplexing.