By Topic

Novel Optical 90 ^{\circ} Hybrid Consisting of a Paired Interference Based 2 ,\times, 4 MMI Coupler, a Phase Shifter and a 2 ,\times, 2 MMI Coupler

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

2 Author(s)
Seok-Hwan Jeong ; Fujitsu Labs. Ltd., Atsugi, Japan ; Morito, K.

We propose a novel optical 90?? hybrid consisting of a paired-interference based 2 ?? 4 multimode interference (MMI) coupler, a phase shifter and a 2 ?? 2 MMI coupler. We theoretically clarified that the proposed device shows superior performances to a conventional 4 ?? 4 multimode interference coupler from the viewpoint of a wavelength sensitive loss and an operating bandwidth. We fabricated the proposed 90?? hybrid using a deep-ridge waveguide with a GalnAsP/InP material system, and experimentally demonstrated quadrature phase response with a low interchannel imbalance, a high common-mode rejection ratio (> 20 dB) and a low phase deviation (< 5??) over 94-nm-wide spectral range.

Published in:

Lightwave Technology, Journal of  (Volume:28 ,  Issue: 9 )