Liquid core integrated ring resonator

Genni Testa; Yujian Huang; Luigi Zeni; Pasqualina M. Sarro; Romeo Bernini

doi:10.1117/12.874806

17 January 2011 Liquid core integrated ring resonator

Genni Testa, Yujian Huang, Luigi Zeni, Pasqualina M. Sarro, Romeo Bernini

Proceedings Volume 7943, Silicon Photonics VI; 794309 (2011) https://doi.org/10.1117/12.874806
Event: SPIE OPTO, 2011, San Francisco, California, United States

Abstract

We report the design and the fabrication of an integrated optofluidic ring resonator based on liquid core antiresonant reflecting optical waveguide (ARROW) operating around λ=635nm with a water filled core (nc=1.33). This waveguide permits a strong coupling between light and analyte as the same microchannel can be used for delivering sample and for confining light. A rectangular-shaped ring resonator has been realized by using four 90-bent waveguides and an multimode interference coupler is used for coupling light from the input bus waveguide to the resonator. The resulting device is very compact, with a total length of 2.5 mm and a required liquid volume of about 0.11nl. The device has been simulated with a two dimensional finite-difference time-domain method for different refractive index core n_c=1.32 (methanol) and n_c=1.43 (dimethylformamide). Moreover, we carried out optical measurements by measuring the transmitted spectrum from the output bus waveguide in both cases. The experimental results confirm that ring with a good quality factor (Q~800) can be achieved in good agreement with the numerical results.

Citation Download Citation

Genni Testa, Yujian Huang, Luigi Zeni, Pasqualina M. Sarro, and Romeo Bernini "Liquid core integrated ring resonator", Proc. SPIE 7943, Silicon Photonics VI, 794309 (17 January 2011); https://doi.org/10.1117/12.874806

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