Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Wideband microwave electro-optic image rejection mixer

Not Accessible

Your library or personal account may give you access

Abstract

We present an electro-optic downconverting mixer with image rejection capabilities. By using a dual-drive Mach–Zehnder modulator (DD-MZM) to modulate an optical carrier with both a signal and a local oscillator, and an asymmetric Mach–Zehnder interferometer (AMZI) to filter the optical spectrum into two separate ports, we generate photocurrents with a phase relationship controlled via direct current (DC) bias voltage applied to the DD-MZM. By choosing these photocurrents to be in quadrature and combining them in a 90-degree electrical hybrid we achieve over 40 dB of image rejection, with a 3 dB bandwidth of approximately 20 GHz limited mainly by the AMZI free spectral range. We demonstrate downconversion of a 1 Gbaud quadrature phase-shift keyed (QPSK) signal even in the presence of a strong interfering image tone.

© 2019 Optical Society of America

Full Article  |  PDF Article
More Like This
All-optical, ultra-wideband microwave I/Q mixer and image-reject frequency down-converter

Yongsheng Gao, Aijun Wen, Wei Chen, and Xiaoyan Li
Opt. Lett. 42(6) 1105-1108 (2017)

Microwave channelizer based on a photonic dual-output image-reject mixer

Wenjuan Chen, Dan Zhu, Chenxu Xie, Jiang Liu, and Shilong Pan
Opt. Lett. 44(16) 4052-4055 (2019)

Microwave photonic I/Q mixer for wideband frequency downconversion with serial electro-optical modulations

Yuewen Zhou, Jiayuan Kong, Fangzheng Zhang, and Shilong Pan
Opt. Lett. 49(1) 65-68 (2024)

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

Figures (4)

You do not have subscription access to this journal. Figure files 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

Equations (14)

You do not have subscription access to this journal. Equations 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

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved