Showing papers by "Yijie Huo published in 2006"
TL;DR: This work demonstrates second-harmonic generation from sub-micrometer-sized AlGaAs/AlxOy artificially birefringent waveguides and further enhanced the SHG using a waveguide-embedded cavity formed by dichroic mirrors.
Abstract: We demonstrate second-harmonic generation (SHG) from sub-micrometer-sized AlGaAs/AlxOy artificially birefringent waveguides. The normalized conversion efficiency is the highest ever reported. We further enhanced the SHG using a waveguide-embedded cavity formed by dichroic mirrors. Resonant enhancements as high as approximately 10x were observed. Such devices could be potentially used as highly efficient, ultracompact frequency converters in integrated photonic circuits.
92 citations
TL;DR: The design, fabrication and characterization of novel dichroic mirrors embedded in a tightly confining AlGaAs/Al(x)O(y) waveguide are reported, essential for achieving resonant enhancement of second-harmonic generation.
Abstract: We report the design, fabrication and characterization of novel dichroic mirrors embedded in a tightly confining AlGaAs/AlxOy waveguide. Reflection at the first-harmonic wavelength as high as 93% is achieved, while high transmission is maintained at the second-harmonic wavelength. The measured cavity spectrum is in excellent agreement with finite-difference time-domain simulations. Such a mirror is essential for achieving resonant enhancement of second-harmonic generation.
2 citations
21 May 2006
TL;DR: In this paper, a cavity-enhanced second-harmonic generation from a tightly confining non-linear optical device for optical frequency conversion is described, which employs a novel waveguide-embedded dichroic mirror, highly reflective at the fundamental wavelength and transmissive at the second harmonic.
Abstract: We report cavity-enhanced second-harmonic generation from a tightly confining non-linear optical device for optical frequency conversion, which employs a novel waveguide-embedded dichroic mirror, highly reflective at the fundamental wavelength and transmissive at the second harmonic.