A dual-electrode optical fiber Fabry-Perot cavity fusion splicing device
A Perot cavity and double electrode technology, which is applied in the field of double electrode optical fiber Fabry-Perot cavity fusion splicing device, can solve the problems of difficult alignment, poor reliability, complicated operation, etc., so as to improve welding efficiency, ensure welding quality, Guaranteed success rate
Active Publication Date: 2019-03-22
NANJING JILONG OPTICAL COMM
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Problems solved by technology
The fusion splicing method using an optical fiber fusion splicer has low loss and good repeatability, but the operation is complicated, and the positioning of the two solder joints cannot be accurately positioned, and the cavity length of the Fabry-Perot cavity cannot be accurately controlled; The cold bonding method is used, that is, the optical glue with a similar refractive index to the fiber core is used for bonding. This method is not easy to align and has poor reliability.
In addition, the repeatability of the end-face distance of the optical fiber (that is, the length of the Fabry-Perot cavity) is not easy to determine, and the operation is complicated
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[0013] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.
[0014] Such as Figures 2 to 3 As shown, a double-electrode optical fiber Fabry-Perot cavity fusion splicing device includes a bracket 2, an optical fiber clamp 4, a welding electrode 5 and an optical amplification system 3, and is characterized in that: the bracket 2 has a U-shaped structure, and the bracket 2 There are two pairs of welding electrodes 5. A V-shaped groove 1 is arranged at the bottom of the bracket 2. A welding cavity 12 is arranged on the top of the V-shaped groove 1. The welding electrodes 5 point to the welding Cavity 12. Usually, when welding the optical fiber 6 Fabry-Perot cavity 8, it is ne...
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The invention discloses a double-electrode fiber Fabry-Perot cavity welding device. The double-electrode fiber Fabry-Perot cavity welding device includes a support, fiber clamps, welding electrodes and an optical amplification system, and is characterized in that the support is a U-shaped structure; the top end of both two arms of the support is provided with the fiber clamp each; two pairs of welding electrodes are provided; a V-shaped groove is formed in the bottom of the support; the top of the V-shaped groove is provided with welding cavities; and the welding electrodes point to the welding cavities. Compared with the prior art, the double-electrode fiber Fabry-Perot cavity welding device has the following advantages of being able to weld two welding points: the left and right welding points, at the same time, being able to weld the two welding points by means of one-step operation so that the welding efficiency is greatly improved, guaranteeing the welding quality, improving the yield while preferably controlling the length of the fiber Fabry-Perot cavity which is obtained through welding, being high in repeatability, having no demand for taking out the devices during the whole process, and quickly determining the distance between two fiber end surfaces by means of coordination with the optical amplification system so as to guarantee the success rate for welding operation and the consistency of the devices.
Description
technical field [0001] The invention relates to the field of optical fiber sensors, in particular to a double-electrode optical fiber Fabry-Perot cavity fusion splicing device. Background technique [0002] The optical fiber Fabry-Perot cavity uses a single optical fiber to detect the measurand by interfering with multiple beams of light. When the light reaches the two reflective surfaces, two beams of reflected light are generated respectively, and the two beams of reflected light interfere with each other when they meet. When the cavity length of the interference cavity changes with the measured object, the phase difference of the two reflected lights changes, and then the measurement is performed. It is a sensor widely researched and developed at present. [0003] The welding schematic diagram of the external cavity Fabry-Perot sensor is as follows figure 1 Shown: Two cleaved optical fiber pairs threaded into a capillary glass tube. The left and right points need to b...
Claims
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IPC IPC(8): G02B6/255
CPCG02B6/2551G02B6/2556
Inventor 刘振贾翔宇孙雅静
Owner NANJING JILONG OPTICAL COMM