Thermomechanical properties of high-power and high-energy Yb-doped silica fiber lasers

Author

Huo, Yanming ; Cheo, Peter K.

Author_Institution

PC Photonics Corp., Waterford, CT, USA

Volume

16

Issue

3

fYear

2004

fDate

3/1/2004 12:00:00 AM

Firstpage

759

Lastpage

761

Abstract

The thermomechanical properties of both single-core and multicore Yb-doped fiber lasers for both continuous wave and Q-switched operations are studied using finite element method. It was found that the maximum stress of multicore fiber lasers is 10%-20% lower than that of single-core fiber lasers with the same effective core and cladding areas at the same operating power level. For Q-switched operation, the stress in a multicore fiber laser relaxes much faster than that in a single-core fiber laser, and the peak stress is found to be proportional to the pulse energy.

Keywords

Q-switching; fibre lasers; finite element analysis; optical fibre cladding; thermal stresses; ytterbium; Q -switched operation; SiO₂:Yb; cladding areas; continuous wave operation; core area; finite element method; high-energy Yb-doped silica fiber lasers; high-power Yb-doped silica fiber lasers; maximum stress; multicore Yb-doped fiber lasers; pulse energy; single-core Yb-doped fiber lasers; thermomechanical properties; Fiber lasers; Finite element methods; Laser modes; Multicore processing; Optical pulses; Power lasers; Pump lasers; Silicon compounds; Thermal stresses; Thermomechanical processes;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2004.823731

Filename

1269786