公开(公告)号：US20180305237A1

公开(公告)日：2018-10-25

申请号：US15769342

申请日：2016-10-21

Applicant: FIBERHOME TELECOMMUNICATION TECHNOLOGIES CO., LTD

Inventor： Cheng DU ,  Wenyong LUO ,  Lei YAN ,  Tao ZHANG ,  Chao CHEN ,  Yili KE ,  Ming KONG ,  Jie ZHANG ,  Zhijian LIU ,  Lifeng LIU

IPC: C03B37/018

Abstract: A method for preparing a doped optical fibre preform includes formulating, a rare earth material or a functional metal material and a co-doping agent into a doping solution, mixing a high-purity quartz powder with the doping solution, drying same at a temperature of 100°C.-150°C. for 12-48 hours, crushing and screening the same to obtain a doped quartz powder; depositing the doped quartz powder onto the surface of a target rod to form a doped core layer; replacing the doped quartz powder with the high-purity quartz powder, and depositing the high-purity quartz powder onto the surface of the doped core layer to form a quartz outer cladding; and removing the target rod, and gradually collapsing the entirety formed from the doped core layer and the quartz outer cladding at a high temperature to obtain the doped optical fibre preform.

公开(公告)号：US20160181758A1

公开(公告)日：2016-06-23

申请号：US14909441

申请日：2014-08-21

Applicant: FIBERHOME TELECOMMUNICATION TECHNOLOGIES CO., LTD.

Inventor： Cheng DU ,  Wei CHEN ,  Shiyu LI ,  Yili KE ,  Qi MO ,  Tao ZHANG ,  Wenyong LUO ,  Kun DU ,  Rong DAN

IPC: H01S3/094 ,  C03B37/027 ,  C03B37/012 ,  H01S3/067 ,  C03B37/025

CPC classification number: H01S3/094019 ,  C03B37/01205 ,  C03B37/01228 ,  C03B37/0253 ,  C03B37/027 ,  C03B2201/34 ,  C03B2203/02 ,  C03B2203/10 ,  C03B2203/32 ,  C03B2203/40 ,  C03B2205/40 ,  H01S3/06729 ,  H01S3/06737 ,  H01S3/094053

Abstract: Provided are a high-efficiency parallel-beam laser optical fiber drawing method and optical fiber, the method including the steps of: S1: providing base planes on the side surfaces of both a gain optical fiber preform and a pump optical fiber preform, inwardly processing the base plane of the gain optical fiber preform to make a plurality of ribs protrude, and inwardly providing a plurality of grooves on the base plane of the pump optical fiber preform; S2: embedding the ribs into the grooves, tapering and fixing one end of the combination of the ribs and the grooves to form a parallel-beam laser optical fiber preform; S3: drawing the parallel-beam laser optical fiber preform into parallel-beam laser optical fibers. The process has high repeatability, and the obtained parallel-beam laser achieves peelability of pump optical fibers in a set area, thus facilitating multi-point pump light injection of parallel-beam laser optical fibers.

Abstract translation: 提供了一种高效平行光束激光光纤拉丝方法和光纤，该方法包括以下步骤：S1：在增益光纤预制棒和泵浦光纤预制棒的侧面上设置底面，向内加工 增益光纤预制棒的基面使多个肋突出，并在泵光纤预制棒的基面上向内提供多个凹槽; S2：将肋嵌入凹槽中，锥形并固定肋和凹槽的组合的一端以形成平行光束激光光纤预制件; S3：将平行光束激光光纤预制件绘制成平行光束激光光纤。 该方法具有高重复性，所得到的平行光束激光器在设定区域实现了泵浦光纤的可剥离性，从而促进了平行光束激光光纤的多点泵浦光注入。