By Topic

Fabrication-Tolerant Waveguide Chirped Grating Coupler for Coupling to a Perfectly Vertical Optical Fiber

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Xia Chen ; Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Hong Kong ; Chao Li ; Hon Ki Tsang

We report the simulation, fabrication, and measurement results of a waveguide grating coupler that could efficiently couple light between submicrometer-sized planar waveguides and vertical optical fibers. The coupler comprises a section of chirped grating which reduces back reflection and enhances coupling efficiency. Coupling efficiency of over 34% was measured and a 3-dB bandwidth of 45 nm was obtained. An experimental study showed that the coupling efficiency was tolerant to fabrication process fluctuations which may lead to random variations in slot width and the duty cycle of the grating periods.

Published in:

Photonics Technology Letters, IEEE  (Volume:20 ,  Issue: 23 )