The design of a silicon-based antiresonant reflecting optical waveguide (ARROW) chemical sensor is presented, and its theoretical performance is compared with that of a conventional structure. The use of an ARROW structure permits incorporation of a thick guiding region for efficient coupling to a single-mode fiber. A high-index overlay is added to fine tune the sensitivity of the ARROW chemical sensor. The sensitivity of the sensor is presented, and design trade-offs are discussed.
© 1996 Optical Society of America
Kate A. Remley and Andreas Weisshaar, "Design and analysis of a silicon-based antiresonant reflecting optical waveguide chemical sensor," Opt. Lett. 21, 1241-1243 (1996)