In respect to the optical fiber coupling-fixing technology for and temperature characteristics of high power pump source subassemblies in EDFA

this paper introduces the internal structure and main technical indexes of the high power 980 nm LD-FBG subassembly and focuses on reporting the low temperature glass welding/coupling/fixing technology and its temperature characteristics and compares low temperature glass welding with laser welding in a table.The temperature test results show that the maximum peak wavelength variation of the said subassembly with a Thermoelectric Cooler（TEC） is less than 0.1 nm and its maximum optical power variation less than 0.3 dB in the temperature range of-20

+

75 ℃.