Improvement of 1.57-1.61 /spl mu/m band amplification efficiency by recycling wasted backward ASE through the unpumped EDF section

Author

Ju Han Lee ; Uh-Chan Ryu ; Namkyoo Park

Author_Institution

Sch. of Electr. Eng., Seoul Nat. Univ., South Korea

Volume

2

fYear

1999

fDate

21-26 Feb. 1999

Firstpage

7

Abstract

A novel structure, which utilizes detrimental backward amplified spontaneous emission (ASE) as a secondary pump source is suggested for a 1.58-/spl mu/m silica-based fiber amplifier. By using the secondary pumping effect from the strong, wasted 1550-nm band ASE power in the unpumped section of the erbium-doped fiber (EDF), it was possible to achieve a considerable improvement in power conversion efficiency, increasing small signal gain by more than 4 dB.

Keywords

erbium; laser transitions; optical communication equipment; optical fibre amplifiers; optical pumping; superradiance; wavelength division multiplexing; 1.57 to 1.61 mum; 1.58 mum; 1550 nm; amplification efficiency; backward amplified spontaneous emission; erbium-doped fiber; increasing small signal gain; power conversion efficiency; secondary pump source; silica-based fiber amplifier; unpumped EDF section; unpumped section; wasted backward ASE recycling; Bandwidth; Erbium; Erbium-doped fiber amplifier; L-band; Laboratories; Optical amplifiers; Optical fiber communication; Recycling; Silicon compounds; Wavelength division multiplexing;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Fiber Communication Conference, 1999, and the International Conference on Integrated Optics and Optical Fiber Communication. OFC/IOOC '99. Technical Digest

Conference_Location

San Diego, CA, USA

Print_ISBN

1-55752-582-X

Type

conf

DOI

10.1109/OFC.1999.766289

Filename

766289