A novel wavelength-division multiplexer using grating-assisted two-mode interference

被引：8
|
作者：
Tsai, TY [1 ]
Lee, ZC
Gan, CS
Chen, FS
Chen, JR
Chen, CC
机构：
[1] Natl Cheng Kung Univ, Lasers & Photon Lab, Inst Microelect, Tainan 701, Taiwan
[2] Natl Cheng Kung Univ, Dept Elect Engn, Tainan 701, Taiwan
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2004年 / 16卷 / 10期
关键词：
finite-difference time-domain (FDTD); multiplexer; optical grating; photonic bandgap; two-mode interference (TMI); wavelength-division multiplexer (WDM);
D O I：
10.1109/LPT.2004.833956
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：
A novel design of wavelength-division multiplexer based on two-mode interference assisted by a highly dispersive grating structure is two-dimensionally simulated and analyzed using finite-difference time-domain method. We show that the designed grating waveguide provides a mode-dependent reflection spectrum which can be used to modify the beat lengths of the two selected wavelengths 1342 and 1560 nm, so that they can be divided in a very short distance about 48 mum. Simulation results show that contrasts similar to12 dB and insertion losses about 2 dB could be achieved.
引用
收藏
页码：2251 / 2253
页数：3
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