An optical millimeter wave generation using carrier suppression modulation scheme based on frequency 12 tupling lithium niobate mach zehnder modulator without an optical filter

• Main Authors: K., Anand Prem P., Chakrapani, Arvind
• Format: Conference Proceeding
• Language: English
• Subjects: Bit error rate; Energy dissipation; Error analysis; Lithium niobates; Millimeter waves; Modulation; Optical fibers; Optical filters; Pseudorandom; Pseudorandom sequences; Q factors; Sidebands; Wave generation
• ISSN: 0094-243X; 1551-7616
• DOI: 10.1063/1.5067347

This article presents a novel method for the generation of optical millimeter wave (mmw) from a microwave signal using a single Lithium Niobate Mach Zehnder Modulator (LiNbO3 MZM). The carrier suppression scheme supports the experimental setup for achieving 12-tupling frequency by suppressing the sidebands of wave signal by fixing the modulation and bias voltage as 10V. The absence of optical filter leads to fast tuning of required frequency by the modulator which helps to achieve 12 tupling frequencies effectively. The pseudorandom bit sequence in the rate of 50 Gbps is transmitted through a single mode optical fiber for a distance of 60 km. The experiment achieves a high data rate, less complexity and better performance in the absence of an optical filter and an amplifier when compared to other conventional methods. The proposed method performs error free transmission along the fiber of length 60 km and the efficiency of the generated mmw is analyzed by using optical spectrum, RF spectrum and eye diagram visualizers. The quality factor is also included in the paper using Bit Error Rate (BER) analyzer to prove that the energy loss is negligible in the setup.