Polarization compensation in silicon-on-insulator arrayed waveguide grating devices

Pavel Cheben; Andrew Bezinger; Andre Delage; Lynden Erickson; Siegfried Janz; Dan-Xia Xu

doi:10.1117/12.426939

18 May 2001 Polarization compensation in silicon-on-insulator arrayed waveguide grating devices

Pavel Cheben, Andrew Bezinger, Andre Delage, Lynden Erickson, Siegfried Janz, Dan-Xia Xu

Proceedings Volume 4293, Silicon-based and Hybrid Optoelectronics III; (2001) https://doi.org/10.1117/12.426939
Event: Symposium on Integrated Optics, 2001, San Jose, CA, United States

Abstract

As the AWG size is reduced our experimental and theoretical work demonstrates that it becomes increasingly difficult to suppress higher order modes and birefringence using ridge dimension alone. In part, it simply becomes difficult to meet the required fabrication tolerances when the ridge dimension approaches the order of a micron. We show that a novel polarization compensator scheme similar to that previously reported for a grating based demultiplexer in InP and consisting of simple shallow etched regions in the combiner sections of an SOI AWG, can eliminate the polarization sensitivity of the device by reducing the initial polarization dispersion of 2.22 nm to 0.04 nm. By combining the polarization compensator with mode filtering using appropriate array waveguide curvature, the shape of the array waveguides is no longer constrained. This allows the size of an AWG device to be scaled down to very small dimensions (e.g. less than a millimeter) and also permits the use of simple fabrication techniques such as wet etching. Our results were obtained on AWG devices based on 1.5 micrometers thick Si-on-insulator waveguides with a typical waveguide array area of a few square millimeters.

Citation Download Citation

Pavel Cheben, Andrew Bezinger, Andre Delage, Lynden Erickson, Siegfried Janz, and Dan-Xia Xu "Polarization compensation in silicon-on-insulator arrayed waveguide grating devices", Proc. SPIE 4293, Silicon-based and Hybrid Optoelectronics III, (18 May 2001); https://doi.org/10.1117/12.426939

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available