Title :
Er/sup 3+/-Yb/sup 3+/ codoped phosphate glass waveguide amplifier using Ag/sup +/-Li/sup +/ ion exchange
Author :
Wong, S.F. ; Pun, E.Y.B. ; Chung, P.S.
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Kowloon, China
Abstract :
An Er/sup 3+/-Yb/sup 3+/ codoped phosphate glass waveguide amplifier using an Ag/sup +/-Li/sup +/ ion exchange process is demonstrated. The glass contains Li/sup +/ instead of Na/sup +/ and the spectroscopic properties were characterized. The emission parameters were calculated, and the radiative quantum efficiency of the 4I/sub 13/2/ to 4I/sub 15/2/ transition is estimated to be /spl sim/100 %. The planar glass waveguide amplifier produces a net gain /spl sim/3.3 dB/cm with an input signal wavelength of 1.535 μm at a power of -40 dBm, for 120 mW of 980-nm pump power.
Keywords :
erbium; fluorescence; impurity absorption spectra; ion exchange; laser transitions; optical planar waveguides; phosphate glasses; solid lasers; visible spectra; waveguide lasers; ytterbium; /sup 4/I/sub 13/2/ to /sup 4/I/sub 15/2/ transition; 1.535 micron; 120 mW; 3.3 dB; 980 nm; 980-nm pump power; Ag/sub 2/O-Li/sub 2/O-P/sub 2/O/sub 5/:Er,Yb; Ag/sup +/-Li/sup +/ ion exchange; Er/sup 3+/-Yb/sup 3+/ codoped phosphate glass waveguide amplifier; Judd-Ofelt analysis; absorption spectrum; emission parameters; fluorescence spectra; input signal wavelength; net gain; planar glass waveguide amplifier; radiative quantum efficiency; spectroscopic properties; Erbium; Erbium-doped fiber amplifier; Glass; Integrated optics; Optical amplifiers; Optical films; Optical pumping; Optical waveguides; Planar waveguides; Spectroscopy;
Journal_Title :
Photonics Technology Letters, IEEE
