Title

Free-Space Wavelength-Multiplexed Optical Scanner Demonstration

Abstract

Experimental demonstration of a no-moving-parts free-space wavelength-multiplexed optical scanner (W-MOS) is presented. With fast tunable lasers or optical filters and planar wavelength dispersive elements such as diffraction gratings, this microsecond-speed scanner enables large several-centimeter apertures for subdegree angular scans. The proposed W-MOS design incorporates a unique optical amplifier and variable optical attenuator combination that enables the calibration and modulation of the scanner response, leading to any desired scanned laser beam power shaping. The experimental setup uses a tunable laser centered at 1560 nm and a 600-grooves/mm blazed reflection grating to accomplish an angular scan of 12.92° as the source is tuned over an 80-nm bandwidth. The values for calculated maximum optical beam divergance, required wavelength resolution, beam-pointing accuracy, and measured scanner insertion loss are 1.076 mrad, 0.172 nm, 0.06 mrad, and 4.88 dB, respectively. © 2002 Optical Society of America.

Publication Date

9-10-2002

Publication Title

Applied Optics

Volume

41

Issue

26

Number of Pages

5568-5573

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1364/AO.41.005568

Socpus ID

0037056315 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0037056315

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