We describe a laser-diode microscope that produces images that are almost free of speckles. Speckle reduction is achieved by large-signal current modulation of the laser diode and the introduction of a dispersing section as part of the illumination arrangement.
© 1990 Optical Society of America
Caesar Saloma, Satoshi Kawata, and Shigeo Minami, "Laser-diode microscope that generates weakly speckled images," Opt. Lett. 15, 203-205 (1990)