Title :
Highly linear electrooptic modulator with suppression of even-order distortions
Author :
Fegadolli, William Santos ; de Souza Martins, C. ; Coutinho, Olympio Lucchini ; Almeida, Vilson Rosa ; Oliveira, José Edimar Barbosa
Author_Institution :
Dept. de Microondas e Optoeletronica, Inst. Tecnol. de Aeronaut., Sao Jose dos Campos, Brazil
Abstract :
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.Hz4/5, similarly to that of a DCM.
Keywords :
electro-optical modulation; intermodulation distortion; modulators; optical distortion; optical links; Mach-Zehnder modulators; Y-junction directional coupler modulator; analog optical link; even-order distortion suppression; linear electrooptic modulator; Directional couplers; Dynamic range; Electrooptic modulators; Nonlinear distortion; Optical distortion; Optical fiber communication; Optical interferometry; Optical modulation; Phase modulation; Transfer functions; Electooptic modulators; Mach-Zehnder; Y-junction; directional coupler; linearity; spurious free dynamic range;
Conference_Titel :
Microwave and Optoelectronics Conference (IMOC), 2009 SBMO/IEEE MTT-S International
Conference_Location :
Belem
Print_ISBN :
978-1-4244-5356-6
Electronic_ISBN :
1679-4389
DOI :
10.1109/IMOC.2009.5427601
