Document Type
Article
Publication Date
11-1995
Publication Source
Optical Engineering
Abstract
A theoretical performance analysis of a heterodyne ladar system incorporating a single-mode fiber receiver has been performed. For our purposes, the performance parameters of interest are the coupling and mixing efficiency of the ladar receiver, as they relate to the overall system carrier-to-noise ratio. For a receiver incorporating a single-mode fiber mixer, the received and local-oscillator fields are matched both spatially and temporally at the detector, yielding 100% mixing efficiency. We have therefore focused our efforts on determining an expression for the efficiency with which a diffuse return from a purely speckle target can be coupled into the receiving leg of a monostatic, untruncated cw ladar system. Through numerical analysis, the expected coupling efficiency for a ladar system with negligible truncation of the transmit beam has been determined to be 30.6%.
Inclusive pages
3122-3129
ISBN/ISSN
0091-3286
Document Version
Published Version
Copyright
Copyright © 1995, Society of Photo Optical Instrumentation Engineers
Publisher
Society of Photo Optical Instrumentation Engineers
Volume
34
Issue
11
Peer Reviewed
yes
Keywords
optical remote sensing, image processing, ladar, lidar, heterodyne, single-mode fibers, laser speckle
eCommons Citation
Jacob, Donald K.; Mark, Martin B.; and Duncan, Bradley D., "Heterodyne Ladar System Efficiency Enhancement Using Single-mode Optical Fiber Mixers" (1995). Electro-Optics and Photonics Faculty Publications. 12.
https://ecommons.udayton.edu/eop_fac_pub/12
Comments
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