DocumentCode :
7749
Title :
Generating in-Plane Optical Orbital Angular Momentum Beams With Silicon Waveguides
Author :
Dengke Zhang ; Xue Feng ; Kaiyu Cui ; Fang Liu ; Yidong Huang
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Volume :
5
Issue :
2
fYear :
2013
fDate :
Apr-13
Firstpage :
2201206
Lastpage :
2201206
Abstract :
A simple on-chip integrated structure is proposed to generate optical orbital angular momentum (OAM) beams, where only silicon waveguides and couplers are involved. The operating principle is based on mode converting and proper controlling the phase shift of second-order propagating mode so that OAM modes with charge numbers of 1 or -1 can be selectively generated with mode purity > 90%. The proposed device is very compact with footprint of <; 120 μm × 50 μm and can be easily fabricated with CMOS technology. Thus, such OAM mode generator is a promising candidate for applications ranging from optical tweezers and optical spanners to optical communications.
Keywords :
angular momentum; integrated optics; optical couplers; optical waveguides; silicon; CMOS technology; OAM modes; Si; couplers; in-plane optical orbital angular momentum beam generation; mode conversion; mode purity; optical communications; optical spanners; optical tweezers; silicon waveguides; Couplers; Optical beams; Optical device fabrication; Optical fibers; Silicon; Optical orbital angular momentum (OAM); integrated optical devices;
fLanguage :
English
Journal_Title :
Photonics Journal, IEEE
Publisher :
ieee
ISSN :
1943-0655
Type :
jour
DOI :
10.1109/JPHOT.2013.2256888
Filename :
6494251
Link To Document :
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