Abstract: Optics and optoelectronics experiments course serve as practical applications of classical theories in the fields of physical optics and optoelectronics, aiming to familiarize students with the principles and applications of relevant devices within optoelectronics. In order to delve into the educational significance of related research outcomes, this paper integrates research and teaching, mutually enhancing each other. We introduce frequency-modulated laser measurement techniques into the laboratory course. Building upon the foundation of conventional fixed-frequency electro-optic modulation experiments, we design experiments to delve deeper into electro-optic modulators and laser interference phenomena. By observing signals from photodetectors, we provide students with intuitive demonstrations of precision measurement processes and calculate distance information of measured targets based on principles.

Key words: experimental teaching, frequency modulation, electro-optic modulator, precision measurement