Highly linear electrooptic modulator with suppression of even-order distortions

The distortion introduced by a Y-junction directional coupler modulator (Y-DCM) on an analog optical link is analyzed and compared to that of a Mach-Zehnder (MZM) and of a directional coupler (DCM) modulators. The results reveal that a specific configuration of the Y-DCM allows to bring together adv...

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Bibliographic Details
Main Authors: Fegadolli, William Santos, de Souza Martins, Carla, Coutinho, Olympio Lucchini, Almeida, Vilson Rosa, Oliveira, Jose Edimar Barbosa
Format: Conference Proceeding
Language:English
Subjects:
directional coupler
Directional couplers
Dynamic range
Electooptic modulators
Electrooptic modulators
linearity
Mach-Zehnder
Nonlinear distortion
Optical distortion
Optical fiber communication
Optical interferometry
Optical modulation
Phase modulation
spurious free dynamic range
Transfer functions
Y-junction
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Description
Summary:The distortion introduced by a Y-junction directional coupler modulator (Y-DCM) on an analog optical link is analyzed and compared to that of a Mach-Zehnder (MZM) and of a directional coupler (DCM) modulators. The results reveal that a specific configuration of the Y-DCM allows to bring together advantages of suppressing even-order distortions, similar to that of a MZM, and of enabling high spurious free dynamic range, around 126 dB.Hz 4/5 , similarly to that of a DCM.
ISSN:1679-4389
1679-4389
DOI:10.1109/IMOC.2009.5427601