OPTIMUM DESIGN OF ER3-YB3+ CODOPED FIBERS FOR LARGE-SIGNAL HIGH-PUMP-POWER APPLICATIONS()

Authors
KARASEK M
Citation
M. Karasek, OPTIMUM DESIGN OF ER3-YB3+ CODOPED FIBERS FOR LARGE-SIGNAL HIGH-PUMP-POWER APPLICATIONS(), IEEE journal of quantum electronics, 33(10), 1997, pp. 1699-1705
Citations number
11
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Applied
Journal title
IEEE journal of quantum electronics → ACNP
ISSN journal
00189197
Volume
33
Issue
10
Year of publication
1997
Pages
1699 - 1705
Database
ISI
SICI code
0018-9197(1997)33:10<1699:ODOECF>2.0.ZU;2-7
Abstract
A comprehensive numerical fiber amplifier model has been used to optim ize Er3+-Yb3+ codoped active fiber for maximum gain and quantum conver sion efficiency (QCE) at large signal operation. The optimum cutoff wa velength of the LP11 mode has been found to increase from 800 nm at lo w pump powers (approximate to 50 mW) to 1400 nm at pump powers higher than 500 mW. While at low pump powers fibers with higher numerical ape rture give higher QCE, at high pump levels better large signal perform ance is achieved with fibers having lower numerical aperture.