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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 41, Iss. 19 — Jul. 1, 2002
  • pp: 3900–3905

Optical circulator for an in-line-type compact lidar

Tatsuo Shiina, Eiji Minami, Masafumi Ito, and Yasuyuki Okamura  »View Author Affiliations


Applied Optics, Vol. 41, Issue 19, pp. 3900-3905 (2002)
http://dx.doi.org/10.1364/AO.41.003900


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Abstract

The application of an optical circulator is demonstrated for an in-line-type lidar. The lidar’s transmitter and receiver are installed in a telescope. The optical circulator of interest here can separate the transmitting laser beam and the echo lights on the same optical axis. It can also divide the echo lights simultaneously into orthogonally polarized components. An insertion loss of 2.2 dB and isolation of >60 dB for the developed optical circulator are obtained in a laser-transmitting situation. This optical circulator makes it possible to measure the polarization ratio caused by cloud phases with a narrow field of view in an in-line-type lidar operation.

© 2002 Optical Society of America

OCIS Codes
(010.3640) Atmospheric and oceanic optics : Lidar
(120.4820) Instrumentation, measurement, and metrology : Optical systems
(290.4210) Scattering : Multiple scattering

History
Original Manuscript: May 7, 2001
Revised Manuscript: November 27, 2001
Published: July 1, 2002

Citation
Tatsuo Shiina, Eiji Minami, Masafumi Ito, and Yasuyuki Okamura, "Optical circulator for an in-line-type compact lidar," Appl. Opt. 41, 3900-3905 (2002)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-41-19-3900

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