Generation of microwave signals by heterodyning and multiplication techniques: a comparison

Autor: L. A. González-Mondrangón, E. Avilez-Valenzuela, R. Sardiñas-Fernández, Ignacio E. Zaldivar-Huerta, Alejandro García-Juárez, L. J. Quintero-Rodriguez
Rok vydání: 2019
Předmět:
Zdroj: Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XII.
DOI: 10.1117/12.2506430
Popis: Performance of optical heterodyning and external modulation by using an electro-optical modulator technique is evaluated. The first approach is carried out by beating two optical signals with a wavelength spacing corresponding to the desired microwave or millimeter-wave frequency continually tuned. The second technique requires only a single laser source along with a Mach-Zehnder Intensity Modulator (MZ-IM). Due to the available electrical bandwidth of the photodetector used, the experimental results are limited to the frequency range of 13 GHz. All experimental results are validated by a series of simulations using the VPI software. Signal-to-Noise ratio (SNR) and Phase-Noise parameters are measured.
Databáze: OpenAIRE