Silicon photonic Bragg-grating couplers for optical communications

Wei Shi; Venkat Veerasubramanian; David V. Plant; Nicolas A. F. Jaeger; Lukas Chrostowski

doi:10.1117/12.2044096

25 February 2014 Silicon photonic Bragg-grating couplers for optical communications

Wei Shi, Venkat Veerasubramanian, David V. Plant, Nicolas A. F. Jaeger, Lukas Chrostowski

Proceedings Volume 9010, Next-Generation Optical Networks for Data Centers and Short-Reach Links; 90100F (2014) https://doi.org/10.1117/12.2044096
Event: SPIE OPTO, 2014, San Francisco, California, United States

Abstract

We discuss recent progress and challenges in realizing Bragg-grating devices on the submicron silicon-on-insulator platform for next-generation optical communications applications, such as on-chip optical interconnects and signal processing. In particular, we focus on grating-assisted, wavelength-selective couplers, known as contra-directional couplers (contra-DCs). In contrast to conventional two-port Bragg gratings operating in the reection mode, contra-DCs are four-port devices with very weak backreections and, therefore, can be easily integrated with other photonic components on a chip. In order to provide a reliable on-chip wavelength-division multiplexing (WDM) solution for high-speed optical interconnects, we have developed high-performance add-drop filters and, furthermore, wavelength multiplexers/demultiplexers with combined advantages of at-top responses, low insertion loss (< 1 dB), and low crosstalk (< -23 dB). These WDM devices are ultra-compact and highly tolerant to temperature uctuations (up to ±50 °C), showing great potential for large-scale integration and low-power consumption. We further discuss a novel four-port Bragg photonic resonator for high-speed, low-power optical switching. Using a coupler-chirped design with uniform Bragg gratings, we have recently achieved an on-chip, continuously tunable photonic delay line with low insertion loss. These system-orientated devices indicate great potential for large-scale integration of Bragg-grating-defined functions using CMOS-compatible silicon photonics technology.

Citation Download Citation

Wei Shi, Venkat Veerasubramanian, David V. Plant, Nicolas A. F. Jaeger, and Lukas Chrostowski "Silicon photonic Bragg-grating couplers for optical communications", Proc. SPIE 9010, Next-Generation Optical Networks for Data Centers and Short-Reach Links, 90100F (25 February 2014); https://doi.org/10.1117/12.2044096

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