A Caltech Library Service

Integrated microfluidic variable optical attenuator

Zhu, Lin and Huang, Yanyi and Yariv, Amnon (2005) Integrated microfluidic variable optical attenuator. Optics Express, 13 (24). pp. 9916-9921. ISSN 1094-4087.

PDF - Published Version
See Usage Policy.


Use this Persistent URL to link to this item:


We fabricate and measure a microfluidic variable optical attenuator, which consists of an optical waveguide integrated with a microfluidic channel. An opening is introduced in the upper cladding of the waveguide in order to facilitate the alignment and bonding of the microfluidic channel. By using fluids with different refractive indices, the optical output power is gradually attenuated. We obtain a maximum attenuation of 28 dB when the fluid refractive index changes from 1.557 to 1.584.

Item Type:Article
Related URLs:
URLURL TypeDescription
Additional Information:© 2005 Optical Society. Received 24 October 2005; revised 18 November 2005; accepted 18 November 2005. The authors thank J. Poon for helpful discussions. Financial support from the National Science Foundation and Defense Advanced Research Projects Agency (Dr. D. Honey and Dr. R. Athale) is gratefully acknowledged.
Funding AgencyGrant Number
Defense Advanced Research Projects Agency (DARPA)UNSPECIFIED
Issue or Number:24
Classification Code:(130) Integrated optics; (130.3120) Integrated optics devices; (230) Optical devices; (230.3990) Microstructure devices
Record Number:CaltechAUTHORS:ZHUoe05
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:1169
Deposited By: Archive Administrator
Deposited On:31 Dec 2005
Last Modified:25 Oct 2019 21:58

Repository Staff Only: item control page