학술논문
Designs of compact monolithically integrated tapered spot-size converters for efficient laser-fiber coupling
Document Type
Conference
Author
Source
The 10th IEEE International Symposium on Electron Devices for Microwave and Optoelectronic Applications Electron devices for microwave and optoelectronic applications Electron Devices for Microwave and Optoelectronic Applications, 2002. EDMO 2002. The 10th IEEE International Symposium on. :289-293 2002
Subject
Language
Abstract
Most of the active devices have very small spot-size to enhance the physical interactions necessary for their operation, but when they are coupled to a standard single mode fiber, as much as 90% of the input power could be lost in this process. In this paper, various approaches to expand the spot-size by incorporating a monolithically integrated spot-size converter are presented. By using rigorous numerical simulations it is demonstrated that the coupling efficiency can be significantly increased along with the relaxation of the alignment tolerances.