Mode conversion using optical analogy of shortcut to adiabatic passage in engineered multimode waveguides

被引：52
|
作者：
Lin, Tzung-Yi [1 ]
Hsiao, Fu-Chen [1 ]
Jhang, Yao-Wun [2 ]
Hu, Chieh [2 ]
Tseng, Shuo-Yen [1 ,3 ]
机构：
[1] Natl Cheng Kung Univ, Dept Photon, Tainan 70101, Taiwan
[2] Ind Technol Res Inst, Tainan, Taiwan
[3] Natl Cheng Kung Univ, Adv Optoelect Technol Ctr, Tainan 70101, Taiwan
来源：
OPTICS EXPRESS | 2012年 / 20卷 / 21期
关键词：
GENERATED PLANAR HOLOGRAMS; QUANTUM STATES; CONTINUUM;
D O I：
10.1364/OE.20.024085
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A shortcut to adiabatic mode conversion in multimode waveguides using optical analogy of stimulated Raman adiabatic passage is investigated. The design of mode converters using the shortcut scheme is discussed. Computer-generated planar holograms are used to mimic the shaped pulses used to speed up adiabatic passage in quantum systems based on the transitionless quantum driving algorithm. The mode coupling properties are analyzed using the coupled mode theory and beam propagation simulations. We show reduced device length using the shortcut scheme as compared to the common adiabatic scheme. Modal evolution in the shortened device indeed follows the adiabatic eigenmode exactly amid the violation of adiabatic criterion. (C) 2012 Optical Society of America
引用
收藏
页码：24085 / 24092
页数：8
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