Title :
Ultrawide 75-nm 3-dB gain-band optical amplification with erbium-doped fluoride fiber amplifiers and distributed Raman amplifiers
Author :
Masuda, Hiroji ; Kawai, Shingo ; Suzuki, Ken-Ichi ; Aida, Kazuo
Author_Institution :
NTT Opt. Network Syst. Labs., Kanagawa, Japan
fDate :
4/1/1998 12:00:00 AM
Abstract :
An extremely large 3-dB gain-bandwidth of 75 nm (1531-1606 nm) is achieved with a partially gain-flattened erbium-doped fluoride fiber amplifier and a distributed Raman amplifier. The Raman amplifier consists of a 85-km dispersion-shifted fiber (transmission fiber) and a practical 1505-nm Fabry-Perot laser diode pump. 9/spl times/2.5 Gb/s wavelength-division-multiplexing (WDM) transmission is successfully demonstrated using two 75-nm gain-band amplifiers as in-line and preamplifiers.
Keywords :
Raman lasers; erbium; fibre lasers; laser transitions; optical communication equipment; optical fibre dispersion; optical pumping; wavelength division multiplexing; 1505 nm; 2.5 Gbit/s; 22.5 Gbit/s; 3 dB; 85 km; Fabry-Perot laser diode pump; Gb/s wavelength-division-multiplexing; WDM transmission; dispersion-shifted fiber; distributed Raman amplifiers; erbium-doped fluoride fiber amplifiers; gain-band optical amplification; in-line amplifiers; partially gain-flattened erbium-doped fluoride fiber amplifier; preamplifiers; Diode lasers; Distributed amplifiers; Erbium-doped fiber amplifier; Fabry-Perot; Laser excitation; Optical fiber amplifiers; Preamplifiers; Stimulated emission; Ultraviolet sources; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
