Title :
High-Index-Contrast Grating (HCG) and Its Applications in Optoelectronic Devices
Author :
Zhou, Ye ; Huang, Michael C Y ; Chase, Christopher ; Karagodsky, Vadim ; Moewe, Michael ; Pesala, Bala ; Sedgwick, Forrest G. ; Chang-Hasnain, Connie J.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Univ. of California at Berkeley, Berkeley, CA, USA
Abstract :
We review recent advances in subwavelength high-index-contrast gratings (HCGs) and a variety of applications in optoelectronic devices, including vertical-cavity surface-emitting lasers (VCSELs), tunable VCSELs, high-Q optical resonators, and low-loss hollow-core waveguides (HWs). HCGs can serve as broadband (Delta lambda/lambda ~ 35%), high-reflectivity (>99%) mirrors for surface-normal incident light, which is useful to replace conventional distributed Bragg reflectors in optical devices. HCGs can also be designed as high-Q resonators with output coupling in the surface-normal direction. Finally, we discuss a novel design of HCG as shallow angle reflectors and HWs.
Keywords :
diffraction gratings; laser cavity resonators; laser mirrors; optical waveguides; optoelectronic devices; surface emitting lasers; broadband high-reflectivity mirror; high-Q optical resonator; high-index-contrast grating; low-loss hollow-core waveguide; optoelectronic device; subwavelength gratings; surface-normal incident light; tunable VCSEL; vertical-cavity surface-emitting laser; Resonators; subwavelength grating; tunable optoelectronic devices; vertical-cavity surface-emitting laser (VCSEL); waveguides;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2009.2021145
