Optical Modulator Half-Wave Voltage Measurement Using Opposite-Phase Sine Waves

Author(s)

Sutili, Tiago ^[1] ; Conforti, Evandro ^[1]

Affiliation

^[1] Univ Estadual Campinas, Fac Elect & Comp Engn, Dept Commun, BR-13083970 Campinas, SP - Brazil

• Document type: Journal article
• Source: Journal of Lightwave Technology; v. 34, n. 9, p. 2152-2157, MAY 1 2016.
• Web of Science Citations: 5

Abstract

A simplified direct measurement of half-wave voltage (V-pi) based on the optical modulator third harmonic distortions to sinusoidal signals in opposite phase is proposed and performed for a quadrature Mach-Zehnder optical modulator. Experimental results are obtained from dc up to 11 GHz. The tested device V-pi value is 2.4 V for dc increasing to 3.8 V at 10 GHz. A linear extrapolation predicts that V-pi will be close to 10.5 V at 40 GHz, which is equivalent to the first harmonic for a 80 GBd transmission rate based on QPSK modulation. (AU)

• FAPESP's process: 07/56024-4 - Coherent optical technologies
• Grantee: Evandro Conforti
• Support Opportunities: Research Grants - Research Partnership for Technological Innovation - PITE
• FAPESP's process: 14/18791-7 - High Speed Space Switches for Coherent Optical Networks
• Grantee: Tiago Sutili
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 15/50063-4 - Optical Interconection and Transmition Coherent Systems Technologies
• Grantee: Evandro Conforti
• Support Opportunities: Research Grants - Research Partnership for Technological Innovation - PITE