Widely tunable mid-infrared generation via frequency conversion in semiconductor waveguides

被引:15
|
作者
Logan, Dylan F. [1 ]
Giguere, M. [2 ]
Villeneuve, A. [2 ]
Helmy, Amr S. [1 ]
机构
[1] Univ Toronto, Dept Elect & Comp Engn, Toronto, ON M5S 3G4, Canada
[2] Genia Photon Inc, Laval, PQ H7V 5B7, Canada
关键词
GAAS; LASERS;
D O I
10.1364/OL.38.004457
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Phase matching in a multilayer AlGaAs waveguide is used to generate mid-IR (7.5-8.5 mu m) light through difference frequency generation (DFG) between a 1550 nm pump and 1950 nm signal. This represents the longest wavelength generated through DFG in a 2D waveguide mode in a semiconductor waveguide. It was produced with an efficiency of 1.2 x 10(-4) %/W in a 1 mm long sample. The process is shown to be tunable across >2 mu m through appropriate tuning of the input pump and signal wavelengths and/or waveguide geometry, and is therefore a viable platform for monolithic, tunable, mid-IR sources. (C) 2013 Optical Society of America
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页码:4457 / 4460
页数:4
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