OPTICAL AMPLIFIER

Organization Name

nippon telegraph and telephone corporation

Inventor(s)

Taiji Sakamoto of Musashino-shi, Tokyo JP

Ryota Imada of Musashino-shi, Tokyo JP

Shinichi Aozasa of Musashino-shi, Tokyo JP

Kazuhide Nakajima of Musashino-shi, Tokyo JP

OPTICAL AMPLIFIER

This abstract first appeared for US patent application 20250141174 titled 'OPTICAL AMPLIFIER

Original Abstract Submitted

the present disclosure is an optical fiber amplifier including: an amplification optical fiber doped with a rare earth element, in which a pump light combiner for injecting multimode pump light into a cladding region of the amplification optical fiber is connected to an input end or an output end of the amplification optical fiber, and a reflective device for reflecting the pump light and transmitting signal light is connected to an end part, of the amplification optical fiber, to which the pump light combiner is not connected.