A N X N integrated planar optical waveguide acousto-optical switch design is presented based on waveguide geodesic lenses and acousto-optical deflector. This kind of switches gets over the difficulties occurred in integrated switches based on strip waveguide. It can be integrated in a chip, and the channel numbers N can be up to 218. As an example, a 2 X 2 integrated planar optical waveguide acousto-optical switch has been fabricated and tested. Experiment result shows only one mode is transmitted in the Ti:LiNbO₃ waveguide; the chip insertion loss is 0.8 dB; the central acoustic frequency is 150 MHz; the 3 dB bandwidth of IDT is 56 MHz; the chip acoustic frequency resolution is 6 MHz and the chip extinction ratio is larger than 20 dB.

Date Published: 9 October 2000
PDF: 4 pages
Proc. SPIE 4225, Optical Interconnects for Telecommunication and Data Communications, (9 October 2000); doi: 10.1117/12.402715

Published in SPIE Proceedings Vol. 4225:
Optical Interconnects for Telecommunication and Data Communications
Xiaomin Ren; Suning Tang, Editor(s)