Wideband slow-light propagation with no distortion in a nanofiber-plane-grating composite waveguide

Chengju Ma; Liyong Ren; Wenge Guo; Haiwei Fu; Yiping Xu; Yinggang Liu; Xiaozhen Zhang

doi:10.1117/1.OE.55.6.066120

28 June 2016 Wideband slow-light propagation with no distortion in a nanofiber-plane-grating composite waveguide

Chengju Ma, Liyong Ren, Wenge Guo, Haiwei Fu, Yiping Xu, Yinggang Liu, Xiaozhen Zhang

Author Affiliations +

Optical Engineering, Vol. 55, Issue 6, 066120 (June 2016). https://doi.org/10.1117/1.OE.55.6.066120

Abstract

A nanofiber-plane-grating composite slow-light waveguide to achieve wideband slowlight propagation with no distortion is proposed. The waveguide is formed by embedding a tapered nanofiber into a V-groove on a plane-grating surface. By optimizing the waveguide structural parameters, a slow-light effect with bandwidth of about 1453 GHz is obtained. Based on finite-difference time-domain (FDTD) method, we analyze the waveguide’s optical properties and slow-light characteristics. Simulation results show that a picosecond optical pulse propagating in the slow-light waveguide can be delayed for about 980 fs and without distortion. The group velocity of the optical pulse can be reduced to about 0.3c (c is the speed of light in vacuum). This study will provide important theoretical basis and innovative ideas for the development of new-type slow-light elements.

Citation Download Citation

Chengju Ma, Liyong Ren, Wenge Guo, Haiwei Fu, Yiping Xu, Yinggang Liu, and Xiaozhen Zhang "Wideband slow-light propagation with no distortion in a nanofiber-plane-grating composite waveguide," Optical Engineering 55(6), 066120 (28 June 2016). https://doi.org/10.1117/1.OE.55.6.066120

Published: 28 June 2016

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available