“…The appearance of large mode field polarization maintaining (PM) fiber has promoted the development of high-power polarized lasers project [1][2] .With the development of high-power polarized fiber lasers technology, the coupled fiber device technology has also made significant progress. At present, high-power polarized lasers are developed using reverse pump laser coupling technology [3][4][5][6][7][8][9][10][11][12] , which puts forward stricter technical requirements for the commonly used LMFRPM-OFC. *r.long_runze@126.com,phone:008615900239668 How to reduce the influence of temperature on the polarization characteristics of high-power polarized lasers is a difficulty technical problem.…”