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Lasers, optics and photonics resources and news |
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Yb(III) in New Fluorophosphate Glasses with High Gain Coefficient
Date announced: 29 Oct 2005
A new series of fluorophosphate glasses doped with Yb(III) is
introduced for fiber and waveguide laser applications.
A glass developed by AFO Research, Inc.and tested at University of California,Irvine (Dept.of
Chemical Engineering and Material Science)exhibits an extremely high gain
coefficient, G=0.95 ms*pm^4, and high quantum efficiency -94%. The refractive
index (nD)is linearly dependent on ytterbium concentration, while the nonlinear
refractive index is extremely small (n2=1.42x10^-13 esu).The emission
cross-section which was found to be 0.87 pm^2 at the lasing wavelength of 996
nm,is the highest one among fluorophosphate glasses.
The combination of outstanding spectroscopic and optical properties demonstrates
that the current Yb(III) doped fluorophosphate glass is excellent candidate
material for fiber and waveguide lasers.
Contact
Dr.Alfred Margaryan
Phone:(818)470-2003; Fax:(818) 241-5409
E-mail: afoinc@yahoo.com
Web site:
http://www.aforesearch.com