Adiabatic light transfer in titanium diffused lithium niobate waveguides

被引：28

作者：

Chung, H. P. ^{[1
]}

Huang, K. H. ^{[1
]}

Yang, S. L. ^{[1
]}

Chang, W. K. ^{[1
]}

Wu, C. W. ^{[2
]}

Setzpfandt, F. ^{[3
]}

Pertsch, T. ^{[3
]}

Neshev, D. N. ^{[2
]}

Chen, Y. H. ^{[1
]}

机构：

[1] Natl Cent Univ, Dept Opt & Photon, Jhongli 320, Taiwan

[2] Australian Natl Univ, Res Sch Phys & Engn, CUDOS, Nonlinear Phys Ctr, Canberra, ACT 0200, Australia

[3] Univ Jena, Abbe Ctr Photon, Inst Appl Phys, D-07743 Jena, Germany

来源：

OPTICS EXPRESS | 2015年 / 23卷 / 24期

基金：

澳大利亚研究理事会;

关键词：

TI; LINBO3;

D O I：

10.1364/OE.23.030641

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on the realization of adiabatic light transfer in lithium niobate (LiNbO3) waveguides. This peculiar adiabatic tunneling scheme was implemented in a three-waveguide coupling configuration with the intermediate waveguide being inclined with respect to the outer waveguides to facilitate the adiabatic passage process. We have investigated and determined the adiabatic conditions of the LiNbO3 device in terms of the structure configuration of the waveguide system and found optimal structure parameters by both simulation and experimental approaches. Broadband adiabatic couplings of bandwidth similar to 456 and 185 nm and peak coupling efficiencies of >0.96 have been obtained with a 2-cm long device for TE- and TM-polarized fundamental modes, respectively. Longer (5 cm) devices were also studied and found to be useful in increasing the adiabaticity of the device, especially for the TM-polarized mode. (C) 2015 Optical Society of America

引用

页码：30641 / 30650

页数：10

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