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High Throughput Microfluidic Rapid and Low Cost Prototyping Packaging Methods
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Published on: December 23, 2013

Optofluidic 1x4 switch.

Alex Groisman1, Steve Zamek, Kyle Campbell

  • 1Department of Physics, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0374, USA. agroisman@ucsd.edu

Optics Express
|September 6, 2008
PubMed
Summary
This summary is machine-generated.

This study presents an optofluidic 1x4 switch using a blazed diffraction grating in a microfluidic channel. The switch deflects laser beams based on liquid refractive index, achieving low insertion loss and fast response times.

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Area of Science:

  • Optofluidics
  • Photonics
  • Microfluidics

Background:

  • Optofluidic devices offer integrated optical and fluidic functionalities.
  • Diffraction gratings are key components for beam manipulation.

Purpose of the Study:

  • To design, fabricate, and test a novel optofluidic 1x4 switch.
  • To demonstrate laser beam deflection controlled by liquid refractive index.

Main Methods:

  • Fabrication of a microfluidic channel with an imprinted blazed diffraction grating.
  • Utilizing silicone elastomer and liquids with varying refractive indices.
  • Testing with aqueous salt solutions to induce diffraction orders.

Main Results:

  • Achieved a 1x4 switching functionality.
  • Demonstrated laser beam deflection proportional to refractive index mismatch.
  • Reported insertion loss <2.5dB, extinction ratio >9.8dB, and response time of 55 ms.

Conclusions:

  • The developed optofluidic switch design is scalable to more than 4 outputs.
  • This technology shows promise for advanced optical routing applications.