公开(公告)号：EP4400877A1

公开(公告)日：2024-07-17

申请号：EP23866710.9

申请日：2023-09-28

申请人： Zhongtian Technology Advanced Materials Co., Ltd. ,  Zhongtian Technology Group Co., Ltd.

发明人： ZHANG, Junyi ,  SHEN, Yichun ,  JIANG, Xinli ,  QIN, Yu ,  DING, Song ,  ZHOU, Hui ,  WANG, Jianqing

IPC分类号： G02B6/02 ,  G02B6/036 ,  H01S3/067 ,  C03B37/018

摘要： The present invention provides an energy transmitting fiber and preparation method thereof, and a fiber laser. The energy transmitting fiber includes a core layer and a cladding layer, where from a center of the energy transmitting fiber to an outer wall of the energy transmitting fiber, the core layer includes an inner core layer, an inner sinking layer and an outer core layer that are cladded sequentially, and the cladding layer is cladded on an outer wall of the outer core layer; along a direction perpendicular to an extension direction of the energy transmitting fiber, a cross-section of the inner core layer is in a circular shape, a cross-section of the inner sinking layer is in a ring shape, a cross-section of an inter wall of the outer core layer is in a circular ring shape, an outer wall of a cross-section of the outer core layer is in a rectangular ring shape, the inner core layer and the inner sinking layer are concentrically disposed, and the outer core layer is centrally symmetric along a center of the inner core layer; at least two of the inner core layer, the inner sinking layer and the outer core layer have different refractive indices. A light beam outputted by the energy transmitting fiber of the present invention has good energy uniformity, and when using the fiber laser including the energy transmitting fiber to cut a plate, it is not easy to cause damage to the plate.

公开(公告)号：EP2933239B1

公开(公告)日：2018-05-09

申请号：EP13863765.7

申请日：2013-03-14

申请人： Zhongtian Technology Advanced Materials Co., Ltd

发明人： JIANG, Xinli ,  XU, Xikai ,  CHEN, Jinwen ,  ZHOU, Hui ,  QIAN, Benhua

IPC分类号： C03B37/018 ,  C03B37/012

CPC分类号： C03B37/01211 ,  C03B37/01248 ,  C03B37/01257 ,  C03B37/0126 ,  C03B2203/22 ,  C03B2203/23 ,  C03C23/0075 ,  C03C25/68

摘要： An apparatus for manufacturing a depressed cladding ultra-low water peak optical fiber core rod and a method thereof. The synthesized core rod has a complex refractive index profile. The apparatus comprises a core rod component, a sleeve component, a high-temperature heat source (8), chucks (9), a rotary joint (10), an external air supply pipeline (11) and a pressure control pipe (12). The core rod component is formed by melting and butting a core layer rod (5) and a core rod hollow handle (4). Several vents are drilled at one end, near the core layer rod (5), of the core rod hollow handle (4). The sleeve component is formed by melting and butting an inner cladding sleeve (6) and a sleeve hollow handle (7). The inner cladding sleeve (6) of the sleeve component is sleeved on an outside of the core layer rod (5) of the core rod component. The core rod hollow handle (4) of the core rod component and the sleeve hollow handle (7) are clamped in two chucks (9) of a glass lathe respectively. An outer end of the core rod hollow handle (4) is connected to the external air supply pipeline (11) through the rotary joint (10). The high-temperature heat source (8) is arranged outside the inner cladding sleeve (6).

公开(公告)号：EP3904925A1

公开(公告)日：2021-11-03

申请号：EP18900575.4

申请日：2018-12-29

申请人： Zhongtian Technology Fiber Potics Co., Ltd ,  Jiangsu Zhongtian Technology Co., Ltd. ,  Zhongtian Technology Advanced Materials Co., Ltd. ,  Jiangdong Science and Technology Co., Ltd

发明人： CAO, Shanshan ,  JIANG, Xinli ,  LIU, Zhizhong ,  SHEN, Yichun ,  WANG, Zhen ,  SU, Haiyan ,  XU, Haitao

IPC分类号： G02B6/02

摘要： The invention provides a novel optical fiber includes a single-mode core, a multi-mode layer and an outer cover layer coaxially disposed from the inside to the outside. The single-mode core is located at a center of the optical fiber and has an upper step index. The multi-mode layer surrounds the single-mode core and has a refractive index of α-profile distribution. A plurality of transition layers disposed on an inner side and/or an outer side of the multi-mode layer. The transition layers are coaxial with the single-mode core or the outer cover layer, and cling to the multi-mode layer. A refractive index of the transition layers is equal to a refractive index of a contact portion of the multi-mode layer which is in contact with the transition layers. The novel optical fiber of the invention has both single-mode transmission and multi-mode transmission, which greatly simplifies optical cable management of data centers, reduces upgrade cost of transceivers in future, and has a good low loss characteristic by including transition layers. Another design contains a lower doped layer or a recessed layer to give the optical fiber better resistance to bending.

公开(公告)号：EP4145196A1

公开(公告)日：2023-03-08

申请号：EP20888741.4

申请日：2020-11-02

申请人： Zhongtian Technology Fiber Potics Co., Ltd ,  Jiangsu Zhongtian Technology Co., Ltd. ,  Jiangdong Science and Technology Co., Ltd ,  Zhongtian Technology Advanced Materials Co., Ltd.

发明人： CAO, Shanshan ,  LIU, Zhizhong ,  SHEN, Yichun ,  JIANG, Xinli ,  WANG, Zhen ,  XU, Haitao ,  QIAN, Yigang ,  XUE, Chi ,  SU, Haiyan

IPC分类号： G02B6/036 ,  G02B6/028

摘要： An optical fiber includes, from inside to outside, a core layer, a buffer cladding layer, a recessed cladding layer, a deep fluorine doped layer, an external cladding layer, and a coating layer. The core layer is germanium doped silica. A refractive index difference between the core layer and silica is 0.37 % to 0.5 %. A refractive index of the buffer cladding layer gradual changes along the buffer cladding layer. A refractive index difference between an internal interface of the buffer cladding layer contacting with the core layer and silica is -0.05 % to 0.1 %. A refractive index of an external interface of the buffer cladding layer contacting with the recessed cladding layer is equal to a refractive index of the recessed cladding layer. A refractive index difference between the recessed cladding layer and silica is -0.12 % to -0.2 %. A refractive index difference between the deep fluorine doped layer and silica is -0.3 % to -0.5 %. The external cladding layer is made of silica. The coating layer is coated outside the external cladding layer. The optical fiber has large mode field diameter and good bending resistance.

公开(公告)号：EP2933239A1

公开(公告)日：2015-10-21

申请号：EP13863765.7

申请日：2013-03-14

申请人： Zhongtian Technology Advanced Materials Co., Ltd

发明人： JIANG, Xinli ,  XU, Xikai ,  CHEN, Jinwen ,  ZHOU, Hui ,  QIAN, Benhua

IPC分类号： C03B37/018

CPC分类号： C03B37/01211 ,  C03B37/01248 ,  C03B37/01257 ,  C03B37/0126 ,  C03B2203/22 ,  C03B2203/23 ,  C03C23/0075 ,  C03C25/68

摘要： An apparatus for manufacturing a depressed cladding ultra-low water peak optical fiber core rod and a method thereof. The synthesized core rod has a complex refractive index profile. The apparatus comprises a core rod component, a sleeve component, a high-temperature heat source (8), chucks (9), a rotary joint (10), an external air supply pipeline (11) and a pressure control pipe (12). The core rod component is formed by melting and butting a core layer rod (5) and a core rod hollow handle (4). Several vents are drilled at one end, near the core layer rod (5), of the core rod hollow handle (4). The sleeve component is formed by melting and butting an inner cladding sleeve (6) and a sleeve hollow handle (7). The inner cladding sleeve (6) of the sleeve component is sleeved on an outside of the core layer rod (5) of the core rod component. The core rod hollow handle (4) of the core rod component and the sleeve hollow handle (7) are clamped in two chucks (9) of a glass lathe respectively. An outer end of the core rod hollow handle (4) is connected to the external air supply pipeline (11) through the rotary joint (10). The high-temperature heat source (8) is arranged outside the inner cladding sleeve (6).

摘要翻译： 用于制造凹陷型包层的超低水峰光纤芯杆和它们的方法的装置。 合成的芯棒有一个复杂的折射率分布。 该装置包括一个芯棒组件，套筒部件，高温热源（8），卡盘（9），旋转接头（10），外部空气供给管道（11）和一个压力控制管（12） ， 芯杆部件通过熔化和对接芯层杆（5）和一个芯棒中空手柄（4）形成。 几个中空通风口在一端钻，芯棒手柄（4）的核心层杆（5）的附近。 该套筒部件通过熔化和内包层套（6）的对接和套筒中空手柄（7）形成。 套筒部件的内包层套（6）套设在芯层杆的外侧（5）的芯杆组分。 芯棒中空手柄分别（4）芯杆组件和所述套筒中空手柄（7）的被夹持在两个卡盘（9）的玻璃车床的。 在中空芯棒手柄的外端（4）连接到外部空气供给管道（11）通过所述旋转接头（10）。 高温热源（8）是内包层套（6）的外侧布置。