Output characteristics of diode pumped fiber ASE sources

Author

Duling, I.N., III ; Moeller, R.P. ; Burns, William K. ; Villarruel, C.A. ; Goldberg, L. ; Snitzer, Elias ; Po, H.

Author_Institution

US Naval Res. Lab., Washington, DC, USA

Volume

27

Issue

4

fYear

1991

fDate

4/1/1991 12:00:00 AM

Firstpage

995

Lastpage

1003

Abstract

High power amplified spontaneous emission (ASE) from multicore Nd:fibers pumped by laser diode arrays is investigated experimentally and theoretically. Particular examination is made of threshold conditions at which lasing occurs. A model is presented which describes output power for arbitrary end reflectors. Experimental measurements of lasing threshold reflectivity versus pump power are made and are shown to deviate from the usual laser threshold condition at high pump powers. It is demonstrated that feedback from Rayleigh backscattering can be sufficient to drive the ASE source above lasing threshold in certain configurations

Keywords

Rayleigh scattering; backscatter; fibre lasers; neodymium; optical pumping; superradiance; Rayleigh backscattering; arbitrary end reflectors; configurations; diode pumped fiber amplified spontaneous emission sources; feedback; laser diode arrays; lasing threshold reflectivity; multicore Nd:fibers; output characteristics; output power; pump power; threshold conditions; Diode lasers; Laser excitation; Laser feedback; Multicore processing; Optical arrays; Power generation; Power measurement; Reflectivity; Semiconductor laser arrays; Spontaneous emission;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.83334

Filename

83334