We used sub-µm-sized quartz fibers to probe a visible light, standing electromagnetic wave inside a laser ring cavity. By observing variations in the cavity’s irradiance decay lifetime, we observed the longitudinal shape of the standing wave.
© 1990 Optical Society of America
David Abromson and William S. Bickel, "Probing a standing 0.6328-µm electromagnetic wave in a laser ring cavity," Appl. Opt. 29, 1745-1748 (1990)