Method for testing stimulated Brillouin scattering gain coefficient of passive transmission fiber
The invention relates to the field of optical fiber testing. The technical problem to be solved is to provide a method for testing the stimulated Brillouin scattering gain coefficient of a special passive transmission fiber with a large core diameter. A light source is used for stably outputting las...
Saved in:
Main Authors | , , , , , |
---|---|
Format | Patent |
Language | Chinese English |
Published |
22.11.2022
|
Subjects | |
Online Access | Get full text |
Cover
Loading…
Summary: | The invention relates to the field of optical fiber testing. The technical problem to be solved is to provide a method for testing the stimulated Brillouin scattering gain coefficient of a special passive transmission fiber with a large core diameter. A light source is used for stably outputting laser to a first port of a circulator with three ports, a second port of the circulator is connected with a to-be-measured optical fiber in a fusion welding mode, and optical fibers of other ports of the circulator all adopt passive optical fibers of the same type as the to-be-measured optical fiber; respectively measuring return optical power and output optical power at the third port of the circulator and the output end of the optical fiber to be measured by using an optical power meter; and when the power of the return light is equal to 1% of the fiber entering power of the injected light at the front end of the to-be-measured optical fiber, the fiber entering power of the injected light at the front end of the to- |
---|---|
Bibliography: | Application Number: CN202210924622 |