Length optimization of single-mode rare-earth doped waveguides using saturated absorption

Author

Francois, Veronique ; Ohtsuki, Tomoko ; Peyghambarian, Nasser ; Najafi, S. Iraj

Author_Institution

Dept. de Genie Physique, Ecole Polytech., Montreal, Que., Canada

Volume

7

Issue

8

fYear

1995

Firstpage

872

Lastpage

874

Abstract

Absorption saturation was demonstrated to provide a high, uniform population inversion over a length of waveguide longer than the material absorption length. The small signal gain was measured experimentally in single-mode waveguides, made by silver ion exchange, on a commercially available neodymium doped glass. The ratio of the excited states was calculated as a function of waveguide length and was shown to be a convenient criteria to determine the optimum device length.<>

Keywords

excited states; ion exchange; neodymium; optical planar waveguides; optical saturable absorption; population inversion; solid lasers; waveguide lasers; excited states; length optimization; material absorption length; optimum device length; saturated absorption; signal gain; single-mode rare-earth doped waveguides; single-mode waveguides; uniform population inversion; Absorption; Fiber lasers; Gain measurement; Glass; Laser beams; Laser excitation; Length measurement; Optical waveguides; Silver; Waveguide lasers;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.403999

Filename

403999