Compact Slanted Grating Couplers Between Optical Fiber and InP–InGaAsP Waveguides
نویسندگان
چکیده
We present theoretical and experimental results for compact slanted gratings for vertical coupling between single-mode fiber and InP–InGaAsP waveguides. The maximum calculated coupling efficiency is 59%. We have measured a coupling efficiency of 16% for a 10m-long slanted grating.
منابع مشابه
Development of a vertical optical coupler using a slanted etching of InP/InGaAsP waveguide
We demonstrate a simple and efficient optical coupler for vertical coupling between optical fibers and InP-based waveguides using a slant-etched mirror. The angle of the etched mirror can be controlled by using an aluminum jig with a beveled surface inserted under the substrate during RIE (reactive ion etching) of InP/InGaAsP. The offchip coupler is fabricated simultaneously with a high-mesa wa...
متن کاملFrequency Response and Tunability of Grating- Assisted Directional Couplers
The spectral properties of grating-assisted directional couplers are studied using an improved coupled mode formulation. Key parameters for the design of these structures, such as the grating period, the coupling length, and other structural parameters, are calculated. The frequency response, the filter bandwidth, and the tuning range are analyzed. The technique is used to examine a specific ca...
متن کاملReflectionles grating couplers for Silicon-on-Insulator photonic integrated circuits
We propose a novel grating coupler design which is inherently reflectionles by focusing the reflecte light away from the entrance waveguide. The design rules for this reflectionles grating coupler are explained and the grating coupler design is investigated by means of 3D FDTD simulations for the case of a Silicon-on-Insulator based platform. References and links 1. D. Taillaert, W. Bogaerts, P...
متن کاملDesign of a new asymmetric waveguide in InP-Based multi-quantum well laser
Today, electron leakage in InP-based separate confinement laser diode has a serious effect on device performance. Control of electron leakage current is the aim of many studies in semiconductor laser industry. In this study, for the first time, a new asymmetric waveguide structure with n-interlayer for a 1.325 μm InP-based laser diode with InGaAsP multi-quantum well is proposed and theoreticall...
متن کاملGrating Couplers for Coupling between Optical Fibers and Nanophotonic Waveguides
Nanophotonic waveguides and components are promising for use in the large-scale integration of photonic circuits. Coupling light between nanophotonic waveguides and a single-mode fiber is an important problem and many different solutions have been proposed and demonstrated in recent years. In this paper, we discuss a grating coupler approach. Grating couplers can be placed anywhere on a circuit...
متن کامل