Modal Behavior of Photonic Crystal Tapers for Improved Coupling Toward Cleaved-Facet Single-Mode Fiber

被引：0
作者：
Lee, Ko-Hsin
Guilet, Stephane [1 ]
Merghem, Kamel [1 ]
Sagnes, Isabelle [1 ]
Talneau, Anne [1 ]
机构：
[1] CNRS, LPN, F-91460 Marcoussis, France
来源：
JOURNAL OF LIGHTWAVE TECHNOLOGY | 2009年 / 27卷 / 22期
关键词：
Integrated optics; mode converter; photonic crystal; taper waveguide; CHANNEL WAVE-GUIDES; TRANSMISSION; COUPLERS; CONVERSION; DESIGN;
D O I：
10.1109/JLT.2009.2030696
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We report simulation and experiment results of modal behaviors of photonic crystal (PhC) tapers on InP-based materials designed to improve coupling efficiency of the PhC waveguide mode into a cleaved-facet single-mode fiber. The modal distributions of transmitted power are simulated by two-dimensional finite difference time domain (2D-FDTD) calculation and the measured far-field patterns are in agreement with these calculations. The 34.4 m-long PhC taper with Gaussian curve geometry is demonstrated to have an enhancement of coupling efficiency by a factor of four compared to the direct coupling from a W3 PhC defect waveguide.
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收藏
页码：5168 / 5172
页数：5
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