Profile: Optronic Laboratories, Inc. deals with precision optical components and sub-assemblies. We offer Acousto, electro, precision and fiber optic products. Our Acousto optics product includes Q-switches, modulators, tunable filters, frequency shifters and deflectors. Our fiber optic products conclude single mode fused, high reliability fused and fiber laser components. Our brands include Auto Spec™, Optolon™ and Lumesphere Plus™. Our Q-switches are special modulators designed for use inside laser cavities. They have exceptionally low insertion loss and are able to withstand very high laser powers. In normal use an RF signal is applied to the Q-Switch causing it to deflect a proportion of the laser beam. This increases the cavity losses and prevents lasing. When the RF signal is switched off, the cavity losses decrease rapidly and an intense laser pulse evolves. Our AO modulator is a device that modulates and controls the intensity of an optical beam. For highest speeds the laser beam will be focused down, forming a beam waist as it passes through the modulator.