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Proceedings Paper

Ultracompact wave plates by air holes periodic dielectric waveguides
Author(s): Wenfu Zhang; Jihong Liu; Wei-Ping Huang; Wei Zhao
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Paper Abstract

Ultracompact wave plate (UWP) will be one of the key elements in future all-optical photonic integrated circuits (PICs). In this paper, we propose UWPs based on periodic dielectric waveguides (PDWs) with air holes in conventional dielectric waveguides. The mode characteristics (for both TE and TM) and birefringence of PDWs are calculated by plane wave method (PWM). The transmission efficiencies and phase changing of TE and TM waves in PDW are obtained by finite-difference time-domain (FDTD) scheme. Based on the PDWs, the quarter-wave plates (QWPs) and half-wave plates (HWPs) are designed. Calculating results show that the proposed PDW has large birefringence (Δn>1) and can introduce 2π phase difference with a short length being less than λ. The size of low order UWPs are compact. The transmission efficiency of PDW is improved by taper structure. Based on the taper PDW, ultra-wide band (>100 nm) achromatic QWP is designed. Profiting from the waveguide guiding, the UWPs have low beam divergence and can be easily integrated with other photonic components. The UWPs have many potential applications in future PIC systems such as optical communications, optical measurements and sensors.

Paper Details

Date Published: 24 February 2010
PDF: 8 pages
Proc. SPIE 7609, Photonic and Phononic Crystal Materials and Devices X, 76091H (24 February 2010); doi: 10.1117/12.845956
Show Author Affiliations
Wenfu Zhang, Xi'an Institute of Optics and Precision Mechanics (China)
Graduate Univ. of Chinese Academy of Sciences (China)
Jihong Liu, Xi'an Institute of Post and Telecommunications (China)
Wei-Ping Huang, McMaster Univ. (Canada)
Wei Zhao, Xi'an Institute of Optics and Precision Mechanics (China)

Published in SPIE Proceedings Vol. 7609:
Photonic and Phononic Crystal Materials and Devices X
Ali Adibi; Shawn-Yu Lin; Axel Scherer, Editor(s)

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