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CN-116706654-B - Optical fiber mode stripper cooling structure and laser with same

CN116706654BCN 116706654 BCN116706654 BCN 116706654BCN-116706654-B

Abstract

The application discloses a cooling structure of an optical fiber mode stripper and a laser with the cooling structure, and relates to the technical field of optical fiber cooling. The optical fiber mold stripper cooling structure comprises an optical fiber mold stripper body, a cooling assembly and a fixing assembly, wherein the cooling assembly is provided with a cavity communicated with the outside, the cavity is provided with two ports arranged at intervals, the optical fiber mold stripper body penetrates into the cavity from one port, the optical fiber mold stripper body penetrates out of the cavity from the other port, and the fixing assembly is respectively connected with the optical fiber mold stripper body and the cooling assembly so that at least one port is communicated with the outside. The cooling structure of the optical fiber mode stripper provided by the application has high cooling efficiency and good cooling effect, and can be suitable for cooling the optical fiber mode stripper in low-power, medium-power, high-power and ultra-high-power optical fiber lasers and amplifiers.

Inventors

  • CHEN YUN
  • Yang Luwen
  • ZHANG NAN
  • LIU JIAN

Assignees

  • 深圳市杰普特光电股份有限公司

Dates

Publication Date
20260512
Application Date
20230613

Claims (6)

  1. 1. A cooling structure for an optical fiber stripper, comprising: an optical fiber stripper body; the cooling assembly is provided with a cavity communicated with the outside, the cavity is provided with two ports arranged at intervals, the optical fiber stripper body penetrates into the cavity from one port, and the optical fiber stripper body penetrates out of the cavity from the other port; The fixing assembly is respectively connected with the optical fiber stripper body and the cooling assembly so as to enable at least one port to be communicated with the outside; the cooling component is provided with a first side wall which surrounds and forms the cavity, the fixing component comprises a supporting piece and an adjusting piece, the supporting piece is connected with the optical fiber stripper body, and the supporting piece is arranged in the cavity or arranged at the port; When the supporting piece is arranged in the cavity, the supporting piece is connected with the cooling component, the adjusting piece is connected with the supporting piece, and the adjusting piece drives the supporting piece to move so as to change the distance between the optical fiber stripper body and the first side wall; when the support piece is arranged at the port, a first through hole is formed in the support piece, the adjusting piece is embedded in the first through hole, the optical fiber mold stripper body penetrates through the adjusting piece, a plurality of second through holes are formed in the adjusting piece and are communicated with the cavity, the second through holes are distributed in an array, and at least two adjacent second through holes are partially overlapped.
  2. 2. The optical fiber stripper cooling structure of claim 1 wherein the support is spaced from the cooling assembly when the support is disposed within the cavity, the support being disposed at both ends of the optical fiber stripper body.
  3. 3. The cooling structure of the optical fiber stripper according to claim 1, wherein when the supporting member is disposed in the cavity, the cooling assembly further has a first connecting portion, the first connecting portion has a hollow structure, the first connecting portion is communicated with the cavity, and the adjusting member is disposed through the first connecting portion and is slidably connected with an inner wall of the first connecting portion.
  4. 4. A cooling structure of an optical fiber stripper according to claim 3, wherein the adjusting member is engaged with or screwed to an inner wall of the first connecting portion.
  5. 5. The optical fiber stripper cooling structure of any one of claims 1-4, further comprising a liquid cooling device having a cooling liquid disposed therein, the liquid cooling device in communication with the cooling assembly such that the cooling liquid circulates between the liquid cooling device and the cooling assembly.
  6. 6. A laser comprising the optical fiber stripper cooling structure of any one of claims 1-5.

Description

Optical fiber mode stripper cooling structure and laser with same Technical Field The application relates to the technical field of optical fiber cooling, in particular to an optical fiber mode stripper cooling structure and a laser with the same. Background CPS (Cladding Power Stripper) is a cladding power Stripper, also called a Mode Stripper (Mode Stripper), which is one of the important devices in a fiber laser, and is used for stripping pump light and high-order modes transmitted by a cladding layer, so as to ensure the quality of a light beam transmitted by the fiber. Conduction cooling is commonly used in the prior art to address the problem of thermal effects in fiber lasers, particularly high power fiber lasers. In the cooling conduction mode, the optical fiber mold stripping device is fixed in the metal sealing cavity, heat accumulated in the optical fiber mold stripping device is dispersed through cooling liquid between the optical fiber mold stripping device and the metal sealing cavity, the cooling liquid is in direct contact with the surface of the optical fiber mold stripping device, impurities in the cooling liquid are easy to adhere to the surface of the optical fiber mold stripping device, the heat dissipation efficiency is reduced, the metal sealing cavity is complex in structure and poor in packaging reliability, and the problem that the metal sealing cavity leaks easily occurs. Disclosure of Invention In view of the above, the application aims to overcome the defects in the prior art, and provides an optical fiber stripper cooling structure and a laser with the same, so as to solve the technical problems that the optical fiber stripper cooling structure in the prior art is poor in tightness and impurities in cooling liquid affect the heat dissipation effect of an optical fiber stripper body. The application provides: a fiber stripper cooling structure comprising: an optical fiber stripper body; the cooling assembly is provided with a cavity communicated with the outside, the cavity is provided with two ports arranged at intervals, the optical fiber stripper body penetrates into the cavity from one port, and the optical fiber stripper body penetrates out of the cavity from the other port; and the fixing assembly is respectively connected with the optical fiber stripper body and the cooling assembly so as to enable at least one port to be communicated with the outside. In addition, the cooling structure of the optical fiber stripper can also have the following additional technical characteristics: in some embodiments of the present application, the cooling assembly has a first side wall surrounding the cavity, the fixing assembly includes a support member and an adjusting member, the support member is connected with the optical fiber stripper body, the adjusting member is connected with the support member, and the adjusting member drives the support member to move so as to change a distance between the optical fiber stripper body and the first side wall. In some embodiments of the application, the support is spaced apart from the cooling assembly, the support being disposed at both ends of the fiber stripper body. In some embodiments of the application, the support is connected to the cooling assembly, the support being disposed within the cavity or the support being disposed at the port. In some embodiments of the present application, when the support member is disposed in the cavity, the cooling assembly further has a first connection portion, the first connection portion has a hollow structure, the first connection portion is in communication with the cavity, and the adjustment member is disposed through the first connection portion and is slidably connected to an inner wall of the first connection portion. In some embodiments of the application, the adjusting member is clamped or screwed with an inner wall of the first connecting portion. In some embodiments of the present application, when the support member is disposed at the port, a first through hole is formed on the support member, the adjusting member is embedded in the first through hole, and the optical fiber stripper body is penetrating through the adjusting member. In some embodiments of the present application, the adjusting member is provided with a plurality of second through holes, the second through holes are communicated with the cavity, the plurality of second through holes are distributed in an array, and two adjacent second through holes are at least partially overlapped. In some embodiments of the present application, the cooling structure of the optical fiber stripper further comprises a liquid cooling device, wherein the cooling component is provided with a cooling liquid, and the liquid cooling device is communicated with the cooling component so as to enable the cooling liquid to circulate between the liquid cooling device and the cooling component. The application also provides a laser which comprises the cool