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Metal-slotted hybrid optical waveguides for PCB-compatible optical interconnection.

Jin Tae Kim1, Jung Jin Ju, Suntak Park

  • 1Electronics and Telecommunications Research Institute (ETRI), Daejeon 305-700, South Korea. jintae@etri.re.kr

Optics Express
|April 27, 2012
PubMed
Summary

A novel metal-slotted hybrid optical waveguide was developed for electro-optical printed circuit board systems. This waveguide successfully transmitted high-speed optical signals, demonstrating its potential for PCB optical interconnections.

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Area of Science:

  • Optoelectronics
  • Materials Science
  • Photonics

Background:

  • Electro-optical printed circuit board (PCB) systems require efficient optical interconnections.
  • Existing solutions face challenges in integration and performance.

Purpose of the Study:

  • To propose and investigate a PCB-compatible metal-slotted hybrid optical waveguide.
  • To evaluate its optical characteristics and transmission capabilities.

Main Methods:

  • Fabrication of a metal-slotted hybrid optical waveguide structure.
  • Optical characterization at a 1.31 μm wavelength.
  • Finite-element method for theoretical prediction.
  • Measurement of guided mode profile and propagation loss.
  • High-speed optical signal transmission testing (2.5 Gbps).

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Main Results:

  • A circularly symmetric guided mode spot was observed, matching theoretical predictions.
  • Measured propagation loss was approximately 1.5 dB/cm.
  • Successful 2.5 Gbps optical signal transmission without eye diagram distortion.

Conclusions:

  • The proposed metal-slotted hybrid optical waveguide is compatible with PCB fabrication.
  • It exhibits promising optical characteristics for light confinement and propagation.
  • The waveguide demonstrates potential as a transmission line for PCB-compatible optical interconnections.