Partial gain-clamping in two-stage double-pass L-band EDFA using a ring resonator

Author

Harun, Sulaiman Wadi ; Samsuri, Norhakimah Md ; Ahmad, Harith

Author_Institution

Fac. of Eng., Multimedia Univ., Selangor, Malaysia

fYear

2004

Abstract

A highly efficient and low noise gain-clamped long-wavelength-band erbium-doped fiber amplifier (L-band EDFA) is demonstrated using a ring laser in double-pass system. The broadband fiber Bragg grating (FBG) operating at L-band region is used to retro-pass the test signal into the system for enhanced gain. A short length of forward pumped EDF is incorporated in front of the double-pass amplifier to achieve a low noise figure. The gain clamping is achieved by routing the backward ASE into the feedback loop to create ring laser. The gain is clamped at 26.8 dB from -40 to -16 dBm with a gain variation of less than 0.1 dB and a noise figure of less than 5.3 dB.

Keywords

Bragg gratings; clamps; erbium; optical fibre amplifiers; 26.8 dB; broadband fiber Bragg grating; double-pass L-band EDFA; double-pass system; erbium-doped fiber amplifier; gain-clamped L-band EDFA; low noise L-band EDFA; partial gain-clamping; ring laser; ring resonator; two-stage L-band EDFA; Bragg gratings; Erbium-doped fiber amplifier; Erbium-doped fiber lasers; Fiber gratings; L-band; Laser noise; Noise figure; Optical ring resonators; Pump lasers; Ring lasers; L-band EDFA; double-passEDFA; erbium-doped fiber amplifier; gain clamping;

fLanguage

English

Publisher

ieee

Conference_Titel

Semiconductor Electronics, 2004. ICSE 2004. IEEE International Conference on

Print_ISBN

0-7803-8658-2

Type

conf

DOI

10.1109/SMELEC.2004.1620869

Filename

1620869