Abstract
1. Introduction Semiconductor microring resonators fabricated using high-index-contrast waveguides offer promising potential for low-loss, compact wavelength selective devices.1 Since the intrinsic quality factor of the resonator is limited by propagation loss, measurement and modeling of the various loss mechanisms in the microcavity are of great practical interest. In this paper we report measurements and modeling method for the propagation loss in GaAs/AlGaAs racetrack resonators. Although the numerical results are applicable only to our devices, the methodology should apply to devices made elsewhere. The microcavities were fabricated using high-index- contrast waveguides as shown in Fig. 1(a). The tightly-confined waveguides allowed rings with radii as small as 2 pm to be fabricated. Fig. 1(b) shows a typical etched sidewall of the racetracks.
© 2001 Optical Society of America
PDF ArticleMore Like This
Yisbel E. Marin, Arijit Bera, Matteo Cherchi, and Timo Aalto
We4E.3 European Conference and Exhibition on Optical Communication (ECOC) 2022
Duk-Yong Choi, Joo-Hoon Lee, Sang-Wook Yoo, Dong-Su Kim, Young-Hoon Kim, and Sun-Tae Jung
CTuM30 Conference on Lasers and Electro-Optics (CLEO:S&I) 2001
A. Sakai, G. Hara, and T. Baba
MA1_2 Conference on Lasers and Electro-Optics/Pacific Rim (CLEO/PR) 2001