Polymer-based optical waveguide circuits for photonic phased-array antennas

Suning Tang; Linghui Wu; Zhenhai Fu; Dechang An; Zhong Han; Ray T. Chen

doi:10.1117/12.344611

13 April 1999 Polymer-based optical waveguide circuits for photonic phased-array antennas

Suning Tang, Linghui Wu, Zhenhai Fu, Dechang An, Zhong Han, Ray T. Chen

Proceedings Volume 3632, Optoelectronic Interconnects VI; (1999) https://doi.org/10.1117/12.344611
Event: Optoelectronics '99 - Integrated Optoelectronic Devices, 1999, San Jose, CA, United States

Abstract

Photonic phased array antennas represent one of the most critical technologies for both national defense and civilian wireless communications. In this paper, we present a novel compact detector-switched polymeric waveguide true-time- delay module, which is a crucial building block for advanced wideband photonic phased array antennas. The photolithographically defined ultra-low-loss polymeric waveguides provide us an attractive solution for achieving ultra long delay time over tens of nsec with ultra fine resolution of less than 1 ps. The 2D distributed waveguide grating couplers tap the optically encoded microwave signal, propagating along the polymeric channel waveguide, to high- speed photodetectors. These photodetectors can be electrically switched on and off independently for selecting different delay times. The appropriate delay time is equal to the time of flight along the waveguide. We have demonstrated that such optical true-time-delays can be implemented in such a device scheme with the RF spectrum of 11 GHz to 40 GHz. The optically encoded microwave signals are obtained by using semiconductor-laser-based optical heterodyne technique. Such a monolithic integrated module not only reduces the cost associated with optoelectronic packaging, but also reduces the system payload with an improved reliability.

Citation Download Citation

Suning Tang, Linghui Wu, Zhenhai Fu, Dechang An, Zhong Han, and Ray T. Chen "Polymer-based optical waveguide circuits for photonic phased-array antennas", Proc. SPIE 3632, Optoelectronic Interconnects VI, (13 April 1999); https://doi.org/10.1117/12.344611

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