Integrated optical refractometer based on bend waveguide with air trench structure

Jin Hwa Ryu; Bong Kuk Lee; Jaehoon Park; Chan-mo Kang; Youngdal Son; Lee Mi Do; Kyu-Ha Baek

doi:10.1117/1.OE.54.12.127101

9 December 2015 Integrated optical refractometer based on bend waveguide with air trench structure

Jin Hwa Ryu, Bong Kuk Lee, Jaehoon Park, Chan-mo Kang, Youngdal Son, Lee Mi Do, Kyu-Ha Baek

Author Affiliations +

Optical Engineering, Vol. 54, Issue 12, 127101 (December 2015). https://doi.org/10.1117/1.OE.54.12.127101

Abstract

This study proposes an optical sensor based on a refractometer integrating a bend waveguide and a trench structure. The optical sensor is a planar lightwave circuit device involving a bend waveguide with maximum optical loss. A trench structure was aligned with the partially exposed core layer’s sidewall of the bend waveguide, providing a quantitative measurement condition. The insertion losses of the proposed 1×2 single-mode optical splitter-type sensor were 4.38 and 8.67 dB for the reference waveguide and sensing waveguide, respectively, at a wavelength of 1550 nm. The optical loss of the sensing waveguide depends on the change in the refractive index of the material in contact with the trench, but the reference waveguide had stable optical propagating characteristics regardless of the variations of the refractive index.

Citation Download Citation

Jin Hwa Ryu, Bong Kuk Lee, Jaehoon Park, Chan-mo Kang, Youngdal Son, Lee Mi Do, and Kyu-Ha Baek "Integrated optical refractometer based on bend waveguide with air trench structure," Optical Engineering 54(12), 127101 (9 December 2015). https://doi.org/10.1117/1.OE.54.12.127101

Published: 9 December 2015

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