Backward pumping Raman optical fiber amplifier based on tellurate glass optical fiber

• Main Authors: LIU WEI, GUO LIUFEI, WU CHENGCHAO, LU JIAOJIAO, GONG JIAMIN, PEI MENGJIE, GAO RUIJIE
• Format: Patent
• Language: Chinese; English
• Published: 08.04.2022
• Subjects: BASIC ELECTRIC ELEMENTS; DEVICES USING STIMULATED EMISSION; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION

The utility model relates to a backward pumping Raman optical fiber amplifier based on a tellurate glass optical fiber, and the amplifier comprises a combiner which is used for carrying out the coupling of signal light with different wavelengths, transmitted by all optical transmitters, and generating coupled signal light; the pump laser is used for emitting pump light with different wavelengths; the optical coupler is used for coupling the pump light to generate coupled pump light; the tellurate glass optical fiber is used for providing a gain medium for a reaction between the coupled signal light and the coupled pump light, and after the coupled signal light and the coupled pump light generate a stimulated Raman scattering effect, amplified signal light and residual pump light are generated; the band elimination filter is used for filtering residual pump light and transmitting amplified signal light; and the wave separator is used for separating the amplified signal light transmitted by the band elimination