Single and Tandem Fabry-Perot Etalons as Solar Background Filters for Lidar
Applied Optics, Vol. 38, Issue 27, pp. 5851-5858 (1999)
http://dx.doi.org/10.1364/AO.38.005851
Acrobat PDF (113 KB)
Abstract
Atmospheric lidar is difficult in daylight because of sunlight scattered into the receiver field of view. In this research methods for the design and performance analysis of Fabry–Perot etalons as solar background filters are presented. The factor by which the signal to background ratio is enhanced is defined as a measure of the performance of the etalon as a filter. Equations for evaluating this parameter are presented for single-, double-, and triple-etalon filter systems. The role of reflective coupling between etalons is examined and shown to substantially reduce the contributions of the second and third etalons to the filter performance. Attenuators placed between the etalons can improve the filter performance, at modest cost to the signal transmittance. The principal parameter governing the performance of the etalon filters is the etalon defect finesse. Practical limitations on etalon plate smoothness and parallelism cause the defect finesse to be relatively low, especially in the ultraviolet, and this sets upper limits to the capability of tandem etalon filters to suppress the solar background at tolerable cost to the signal.
© 1999 Optical Society of America
[Optical Society of America ]
OCIS Codes
(120.2230) Instrumentation, measurement, and metrology : Fabry-Perot
(120.4570) Instrumentation, measurement, and metrology : Optical design of instruments
(280.3640) Remote sensing and sensors : Lidar
(350.2460) Other areas of optics : Filters, interference
Citation
Jack A. McKay, "Single and Tandem Fabry-Perot Etalons as Solar Background Filters for Lidar," Appl. Opt. 38, 5851-5858 (1999)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-38-27-5851
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





OSA is a member of 