Improved coupling structure of butterfly laser

Abstract

The utility model discloses a butterfly-shaped laser coupling improvement structure, which comprises a gold-plated coupling shell, a plurality of pins and a steel ladle needle optical fiber, the plurality of pins are arranged on two sides of the gold-plated coupling shell, a chip and a long-focus lens are respectively arranged in the gold-plated coupling shell, the steel ladle needle optical fiber is vertically arranged in a metal transition block, and the metal transition block is provided with a plurality of holes. The metal transition block is welded and fixed to the edge of the lower side of the gold-plated coupling shell, one end of the steel ladle needle optical fiber and the gold-plated coupling shell are welded and fixedly connected at the joint through laser welding, and the steel ladle needle optical fiber, the chip and the long-focus lens are located on the same straight line in the vertical direction. The steel ladle needle optical fiber is externally arranged and does not need to be welded internally, the laser welding sealing performance at the joint is good, the adjusting ring is additionally arranged outside the optical fiber and is not prone to damage and scrapping, the yield is high, repair is easy and convenient, and the use requirement is effectively met.

Description

Technical Field

[0001] This utility model belongs to the field of communications, and specifically relates to an improved coupling structure for a butterfly laser that features strong and reliable welding, good sealing, resistance to damage to optical fibers, high yield, low operating costs, and simple and convenient repair. Background Technology

[0002] The fiber, chip, and lens of a butterfly laser need to be coupled, such as Figure 2 As shown, the chip and lens are located on the upper part of the housing, while the lower part uses conventional bare optical fiber, which needs to be inserted into the housing for soldering. At the same time, it also needs to be soldered to the housing at the edge. This use of conventional bare optical fiber can meet certain usage requirements, but it also has significant drawbacks. Both ends of the bare optical fiber need to be soldered, which is cumbersome and inefficient. The optical fiber is prone to breakage during soldering, and the soldering with the housing results in poor sealing, low yield, and the need to remove the solder during rework. This is cumbersome and can easily damage the product, thus failing to effectively meet usage requirements.

[0003] The technical problem to be solved by this utility model is to provide an improved coupling structure for a butterfly laser with steel-clad needles, external fiber optic cable that does not require internal welding, good laser welding sealing at the connection, added adjustment ring on the outside of the fiber that is not easily damaged or scrapped, high yield, simple and convenient repair, and effectively meeting the requirements of use. Utility Model Content

[0004] To address the problems of existing technologies, such as the need for soldering at both ends of bare optical fibers, cumbersome and inefficient operation, easy breakage during soldering, poor sealing between the fiber and the housing, low yield, the need to remove solder during repair, cumbersome operation and easy product damage, and inability to effectively meet usage requirements, this utility model adopts the following technical solution:

[0005] This utility model provides an improved coupling structure for a butterfly laser, including a gold-plated coupling shell, a plurality of pins, and a steel-clad needle optical fiber. The plurality of pins are arranged on both sides of the gold-plated coupling shell. A chip and a long focal length lens are respectively arranged inside the gold-plated coupling shell. The steel-clad needle optical fiber is vertically placed inside a metal transition block. The metal transition block is welded and fixed to the lower edge of the gold-plated coupling shell. One end of the steel-clad needle optical fiber is fixedly connected to the gold-plated coupling shell at the connection point by laser welding. The steel-clad needle optical fiber, the chip, and the long focal length lens are all on the same straight line in the vertical direction.

[0006] The advantages of this utility model are as follows: the steel-clad needle fiber is externally placed inside without welding, the laser welding at the connection point has good sealing performance, the addition of an adjustment ring to the outside of the fiber makes it less prone to damage and scrap, the yield rate is high, and the repair is simple and convenient, effectively meeting the usage requirements. Attached Figure Description

[0007] Figure 1The utility model discloses an embodiment of a main view structure schematic diagram.

[0008] Figure 2 It is the structure schematic diagram of traditional product. PREFERRED EMBODIMENT

[0009] The preferred embodiment of the utility model will be described in detail below with reference to the drawings.

[0010] Please refer to Figure 1 An improved structure of butterfly laser coupling includes a gold-plated coupling shell 1, a plurality of pins 2 and a steel ladle needle fiber 3, the plurality of pins 2 are arranged on both sides of the gold-plated coupling shell 1, the gold-plated coupling shell 1 is respectively provided with a chip 11 and a long-focus lens 12, the steel ladle needle fiber 3 is placed vertically in a metal transition block 31, and the metal transition block 31 is welded and fixed at the lower edge of the gold-plated coupling shell 1, since the long-focus lens is selected, the focal point is outside the shell, and the steel ladle needle fiber can be arranged outside the shell, one end of the steel ladle needle fiber 3 is welded and fixedly connected with the gold-plated coupling shell 1 at the connecting position through laser welding, the laser welding has good sealing performance, the product has better performance, the steel ladle needle fiber 3, the chip 11 and the long-focus lens 12 are arranged on the same straight line in the vertical direction, the adjusting ring metal piece protection is increased, the fiber is not easy to break and damage, the yield is high, when repairing, only the fiber on the outside needs to be removed and welded again, without the need of opening the cover again, so that the operation is convenient and simple.

[0011] The utility model discloses an embodiment of a main view structure schematic diagram. The utility model discloses an embodiment of a main view structure schematic diagram.

Claims

1. A butterfly laser coupling improvement structure, characterized by: Including gold-plated coupling shell (1), several pins (2) and ladle needle optical fiber (3), the several pins (2) are arranged on both sides of the gold-plated coupling shell (1), the gold-plated coupling shell (1) is respectively provided with a chip (11) and a long-focus lens (12), the ladle needle optical fiber (3) is vertically placed in the metal transition block (31), the metal transition block (31) is welded and fixed at the lower edge of the gold-plated coupling shell (1), one end of the ladle needle optical fiber (3) is welded and fixedly connected with the gold-plated coupling shell (1) at the connecting portion by laser welding, the ladle needle optical fiber (3), the chip (11) and the long-focus lens (12) are on the same straight line in the vertical direction.

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