학술논문

Design of quantum well materials for maximum change in refractive index with minimal loss
Document Type
Conference
Source
1996 Conference on Optoelectronic and Microelectronic Materials and Devices. Proceedings Optoelectronic and microelectronic materials and devices Optoelectronic and Microelectronic Materials And Devices Proceedings, 1996 Conference on. :83-86 1996
Subject
Photonics and Electrooptics
Engineered Materials, Dielectrics and Plasmas
Components, Circuits, Devices and Systems
Optical materials
Absorption
Stark effect
Wavelength division multiplexing
Optical refraction
Integrated optics
Potential well
Resonance
Optical losses
Refractive index
Language
Abstract
Quantum well material have become attractive materials for integrated optic devices. Most modulator devices based on quantum well materials utilise the electric field dependent absorption due the quantum confined Stark effect. Modulators for wavelength division multiplexing (WDM) utilising resonant cavities, require highly electrorefractive materials that exhibit minimal loss at the active wavelength. The Stark effect in quantum wells also produces electro-refraction, but this is often unusable due to the increased absorption. In this paper we investigate the engineering and optimisation of quantum well materials to produce a high change in refractive index with applied field, with minimal loss.