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Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities

Published on: November 30, 2012

Self-collimating photonic-crystal wave plates.

Wenfu Zhang¹, Jihong Liu, Wei-Ping Huang

¹State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China. wfu.zhang@gmail.com

|September 3, 2009

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We developed novel polarization-independent wave plates using 2D photonic crystals. These achromatic wave plates offer high accuracy and low loss for telecommunication applications.

Area of Science:

Photonics
Materials Science
Optical Engineering

Background:

Two-dimensional photonic crystals offer unique light manipulation properties.
Wave plates are crucial optical components for controlling light polarization.
Achieving polarization-independent and achromatic wave plates remains a challenge.

Purpose of the Study:

To theoretically design and analyze novel quarter- and half-wave plates.
To achieve polarization-independent operation and achromatic characteristics.
To explore applications in photonic integrated circuits.

Main Methods:

Utilizing a two-dimensional photonic crystal with a polarization-independent self-collimating effect.
Designing low-order wave plates with high phase accuracy (+/-0.01pi).

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Investigating birefringence for designing high-order wave plates.

Main Results:

Demonstrated achromatic wave plates with high phase accuracy in the telecommunication band (1550 nm).
Achieved low beam divergence and transmission loss due to self-collimation.
Proposed a method for designing high-order wave plates based on birefringence.

Conclusions:

The designed photonic crystal wave plates exhibit excellent achromatic and polarization-independent properties.
Self-collimation enables efficient light guiding with minimal loss.
These wave plates hold significant potential for future photonic integrated circuits.