Abstract
We discuss detailed characteristics of a polarization-division-multiplexed
quadrature-phase-shift-keying (PDM-QPSK) modulator with a hybrid configuration
of silica planar lightwave circuits (PLCs) and LiNbO$_{3}$ (LN) phase modulators. With a polarization
multiplexing circuit consisting of a half-wavelength plate (HWP) and a Mach-Zehnder-type
polarization beam combiner (PBC) in a PLC, the modulator outputs a PDM-QPSK
signal with a inter-polarization-channel crosstalk smaller than ${-}$40 dB. The modulator also has a small
insertion loss of 5.0 dB (7.7 and 8.4 dB for each polarization), and successfully
operates at 100 Gb/s.
© 2011 IEEE
PDF Article
More Like This
Silica-based, compact and variable-optical-attenuator integrated coherent receiver with stable optoelectronic coupling system
Satoshi Tsunashima, Fumito Nakajima, Yusuke Nasu, Ryoichi Kasahara, Yasuhiko Nakanishi, Takashi Saida, Takashi Yamada, Kimikazu Sano, Toshikazu Hashimoto, Hiroyuki Fukuyama, Hideaki Nosaka, and Koichi Murata
Opt. Express 20(24) 27174-27179 (2012)
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription