Aperture Dependence of the Mixing Efficiency, the Signal-To-Noise Ratio, and the Speckle Number in Coherent Lidar Receivers
Applied Optics, Vol. 37, Issue 15, pp. 3143-3148 (1998)
http://dx.doi.org/10.1364/AO.37.003143
Acrobat PDF (164 KB)
Abstract
With the aid of the van Cittert–Zernike theorem we develop an analytical expression for the ensemble-averaged heterodyne mixing efficiency in coherent lidar receivers that are looking at a diffuse target that is in the receiver’s far field. Our extremely simple and straightforward analysis shows that the dependence of the mixing efficiency on the receive aperture size dR first follows a parabolic decrease and later approaches a (dR)−2 function. As a consequence, the signal-to-noise ratio does not increase proportionally to the aperture area but saturates. For the system model chosen, the heterodyne mixing efficiency exhibits the same functional dependence on the lidar geometry as the reciprocal of the number of speckle cells within the receive aperture.
© 1998 Optical Society of America
OCIS Codes
(010.1310) Atmospheric and oceanic optics : Atmospheric scattering
(010.3640) Atmospheric and oceanic optics : Lidar
(030.6140) Coherence and statistical optics : Speckle
(040.2840) Detectors : Heterodyne
(120.0280) Instrumentation, measurement, and metrology : Remote sensing and sensors
(280.3640) Remote sensing and sensors : Lidar
Citation
Walter R. Leeb, Peter J. Winzer, and Klaus H. Kudielka, "Aperture Dependence of the Mixing Efficiency, the Signal-To-Noise Ratio, and the Speckle Number in Coherent Lidar Receivers," Appl. Opt. 37, 3143-3148 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-15-3143
You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Log in to access OSA Member Subscription
Related Journal Articles 
- Fiber coupling efficiency for random light and its applications to lidar (OL)
- Turn-Key Raman Lidar for Profiling Atmospheric Water Vapor, Clouds, and Aerosols (AO)
- Scanning Lidar With a Coupled Radar Safety System (AO)
- Autonomous Beam Alignment for Coherent Doppler Lidar With Multielement Detectors (AO)
- Comment on “Heterodyne Lidar Returns in the Turbulent Atmosphere: Performance Evaluation of Simulated Systems” (AO)
Related Conference Papers
- Spatial and Temporal Distribution of Tropospheric Clouds Observed by MODIS on-board the Terra and Aqua Satellites
- Verification of data and atmospheric measurements for the 2002 GLAS orbital lidar mission.
- Measurements of polar cloud properties through continuous long-term lidar observation
- Doubly resonant optical parametric oscillator: a generic transmitter architecture for DIAL
- Airborne LIDAR Measurements of Atmospheric Pressure Made Using the Oxygen A-band
« Previous Article | Next Article »
OSA is a member of 