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The structure and maximal gain of CW-pumped GaP-AlGaP semiconductor Raman amplifier with tapers on both sides

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4 Author(s)
Saito, S. ; Dept. of Mater. Sci., Tohoku Univ., Sendai, Japan ; Nishizawa, J. ; Suto, Ken ; Kimura, T.

GaP-AlGaP waveguide semiconductor Raman amplifiers (SRAs) tapered on both sides were fabricated by high-quality GaP-AlGaP liquid phase epitaxial growth using the temperature difference method with controlled vapor pressure (TDM-CVP), photolithography patterning, and reactive ion etching with PCl3 gas. Although the finesse of the both-sides-tapered waveguide SRA is lower than previous values for straight or one-side-tapered waveguides, the CW-pumped gain was maximized, and a maximal gain of 4.2 dB was obtained. This letter presents the effect of tapered structures in SRA with CW pumping amplification.

Published in:

Photonics Technology Letters, IEEE  (Volume:16 ,  Issue: 1 )

Date of Publication:

Jan. 2004

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