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Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
11:08

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Published on: November 30, 2012

Large phase shift via polarization-coupling cascading.

Juan Huo1, Xianfeng Chen

  • 1Department of Physics, the State Key Laboratory of Advanced Optical Communication Systems and Networks Shanghai Jiao Tong University, Shanghai 200240, China.

Optics Express
|June 21, 2012
PubMed
Summary
This summary is machine-generated.

We discovered "polarization-coupling (PC) cascading" in MgO doped periodically poled lithium niobate (PPMgLN). This phenomenon significantly enhances the electro-optical (EO) Kerr effect, validated by Newton's rings experiments and simulations.

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Area of Science:

  • Nonlinear optics
  • Materials science
  • Photonics

Background:

  • Periodically poled lithium niobate (PPMgLN) is crucial for nonlinear optical applications.
  • Understanding electro-optical (EO) effects in PPMgLN is essential for device development.

Purpose of the Study:

  • To introduce and investigate the phenomenon of "polarization-coupling (PC) cascading" in MgO doped PPMgLN.
  • To demonstrate the enhanced electro-optical (EO) Kerr effect resulting from PC cascading.

Main Methods:

  • Theoretical modeling of PC cascading in PPMgLN.
  • Experimental verification using Newton's rings to measure phase accumulation.
  • Comparison of experimental data with theoretical simulations.

Main Results:

  • Observed a novel "polarization-coupling (PC) cascading" phenomenon in MgO doped PPMgLN.
  • Demonstrated that PC cascading leads to an electro-optical (EO) Kerr effect several orders of magnitude stronger than classical effects.
  • Experimental results precisely matched theoretical predictions.

Conclusions:

  • Polarization-coupling (PC) cascading is a significant phenomenon in MgO doped PPMgLN.
  • This effect offers a pathway to substantially enhance EO Kerr effects for advanced photonic applications.
  • The findings are robustly supported by both theoretical and experimental evidence.