DocumentCode :
1515656
Title :
Ultracompact 2 
2 Photonic Crystal Waveguide Power Splitter Based on Self-Imaging Effect Realized by Asymmetric Interference
Author :
Yu, Tian Bao ; Wang, Qi Jie ; Zhang, Jun ; Yang, Jian Yi ; Yu, Siu Fung
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore
Volume :
23
Issue :
16
fYear :
2011
Firstpage :
1151
Lastpage :
1153
Abstract :
The properties of two-fold images, based on asym metric interference in multimode interference-based photonic crystal waveguides, are numerically studied with finite-difference time-domain simulations. With these image properties, 2 × 2 power splitters (PSs) with an ultracompact size are designed. Ar bitrary splitting ratio can be achieved by modifying the sizes (the effective refractive indices) of one pair of rods in the multimode region. As an example, a 3-dB 2 × 2 PS with a size of 24 × 8 μm2 is presented with an output efficiency as high as 98%. The method can be extended for the design of M × N PSs for photonic integrated circuits applications.
Keywords :
Talbot effect; finite difference time-domain analysis; light interference; optical beam splitters; optical design techniques; optical images; optical waveguides; photonic crystals; refractive index; arbitrary splitting ratio; asymmetric interference; finite-difference time-domain simulations; multimode interference-based photonic crystal waveguides; photonic integrated circuits; refractive indices; self-imaging effect; two-fold images; ultracompact photonic crystal waveguide power splitter; Finite difference methods; Interference; Optical interferometry; Optical waveguides; Optimized production technology; Photonic crystals; Steady-state; Integrated photonics; multimode interference; photonic crystal waveguides; power splitter (PS);
fLanguage :
English
Journal_Title :
Photonics Technology Letters, IEEE
Publisher :
ieee
ISSN :
1041-1135
Type :
jour
DOI :
10.1109/LPT.2011.2154360
Filename :
5766712
Link To Document :
