title: Free-space wavelength-multiplexed optical scanner.
abstract: A wavelength-multiplexed optical scanning scheme is proposed for deflecting a free-space optical beam by selection of the wavelength of the light incident on a wavelength-dispersive optical element. With fast tunable lasers or optical filters, this scanner features microsecond domain scan setting speeds and large- diameter apertures of several centimeters or more for subdegree angular scans. Analysis performed indicates an optimum scan range for a given diffraction order and grating period. Limitations include beam-spreading effects based on the varying scanner aperture sizes and the instantaneous information bandwidth of the data-carrying laser beam.
authors: Z
authors: Z
authors: Yaqoob
authors: A A
authors: AA
authors: Rizvi
authors: N A
authors: NA
authors: Riza