Independent control of EDFA gain shape and magnitude using excited-state trapping

Author

Yadlowsky, Michael J.

Author_Institution

Div. of Sci. & Technol., Corning Inc., NY, USA

Volume

11

Issue

5

fYear

1999

fDate

5/1/1999 12:00:00 AM

Firstpage

539

Lastpage

541

Abstract

Controlled use of excited-states of erbium are used to decouple the magnitude and shape of the gain spectrum of an erbium-doped fiber amplifier (EDFA) containing a low phonon energy glass. This makes it possible to operate a single EDFA at multiple gains without the gain flatness degradation referred to as dynamic gain-tilt. Dynamic gain-tilt free operation is demonstrated in the long-wavelength portion of the erbium gain spectrum using an erbium-doped ZBLAN fiber.

Keywords

aluminium compounds; barium compounds; erbium; excited states; lanthanum compounds; optical communication equipment; optical fibre amplifiers; sodium compounds; zirconium compounds; EDFA gain shape; Er-doped fiber amplifier; ZBLAN:Er; ZrF4-BaF2-LaF3-AlF3-NaF:Er; dynamic gain-tilt; erbium gain spectrum; erbium-doped ZBLAN fiber; erbium-doped fiber amplifier; excited-state trapping; gain flatness degradation; gain spectrum; independent control; long-wavelength portion; low phonon energy glass; magnitude; multiple gains; Erbium; Erbium-doped fiber amplifier; Glass; Metastasis; Optical amplifiers; Optical attenuators; Optical fiber amplifiers; Phonons; Shape control; Stimulated emission;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.759391

Filename

759391