By Topic

64QAM Modulator With a Hybrid Configuration of Silica PLCs and LiNbO _{3} Phase Modulators

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

5 Author(s)
Yamazaki, H. ; NTT Photonics Labs., NTT Corp., Atsugi, Japan ; Yamada, Takashi ; Goh, T. ; Sakamaki, Y.
more authors

Quadrature amplitude modulation (QAM) is a promising approach for increasing the spectral efficiency of wavelength-division-multiplexing transmission, but its optical implementation is challenging. We demonstrate a 64-level QAM (64QAM) modulator, which uses a signal synthesis in the optical domain. We achieved an integration of low-loss asymmetric couplers and three quadrature-phase-shift-keying modulation circuits using a hybrid configuration of silica-based planar lightwave circuits and an array of LiNbO3 phase modulators. The modulator successfully operated at 60 Gb/s (10 Gbaud).

Published in:

Photonics Technology Letters, IEEE  (Volume:22 ,  Issue: 5 )