High-gain characteristics of integrated optical amplifiers using rare-earth ion-doped garnet thin film waveguides

YASUMITSU MIYAZAKI

Abstract


High-gain amplification of a channel waveguide optical amplifier using Nd: YGG thin film is reported, featuring a gain of 6.5 dB over a length of 4 mm, for the wavelength of 1.06 m, the gain per unit length being 16 dB/em. For optical wavelengths 1.5 and 1.3 )lm, channel waveguide optical amplifiers are studied using Er3 ... and Pr3 + - doped garnet films.

Keywords


Optical amplifiers; optical pumping; garnet crystalline thin film waveguides.

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