Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Polarization-Independent Electro-optic Waveguide Switch Using Strained InGaAs/InP Quantum Wells

Not Accessible

Your library or personal account may give you access

Abstract

Most current applications for electro-optic space-division switches call for polarization-independence as a top systems requirement. However, in both LiNbO3[l] and bulk semiconductor [2] devices polarization-independent switching has thus far been achieved only at the expense of greatly increased switching voltage. Moreover in these materials there is no means, other than substrate orientation, for adjusting the relative strength of TE and TM electro-optic coefficients. In this paper we demonstrate a novel approach to polarization independence: control of electro-optic coefficients via bandgap engineering. By design of layer thicknesses and composition in a quantum well heterostructure, we show that it is possible to use strain to adjust the ratio of refractive index changes in the TE and TM polarizations such that (Δn)/(Δn) ~1. At the same time, we make use of the same enhanced excitonic electro-optic effects found in unstrained quantum wells [3,4] to produce a polarization-independent 2×2 switch with voltage-length product 30 times smaller than in bulk semiconductors and 150 times smaller than in LiNbO3.

© 1992 Optical Society of America

PDF Article
More Like This
Observation of polarization-independent field-induced index variation in InGaAs/InP tensile-strained quantum well

K. G. Ravikumar, T. Aizawa, S. Suzaki, and R. Yamauchi
WH14 Optical Fiber Communication Conference (OFC) 1993

Potential-Tailored Strained InGaAs Quantum Well for Polarization-Dependent Optical Switch

Hiroki Tominaga, Joo-Hyong Noh, and Taro Arakawa
ThL3_7 OptoElectronics and Communications Conference and Photonics in Switching (OECC_PS) 2013

Polarization-independent waveguide modulators using 1.57 m-strained InGaAs/InGaAsP quantum wells

Robert E. Bartolo, S.S. Saini, T. Ren. Y. Zhu, M. Dagenais, H. Shen, J. Pamulapati, W. Zhou, O. King, and F.G. Johnson
CTuT3 Conference on Lasers and Electro-Optics (CLEO) 1999

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2022 | Optica Publishing Group. All Rights Reserved