Some new possibilities to design frequency-tunable lidars in the IR (2-14 um)

Gennady I. Freidman; Guerman A. Pasmanik; Alexander A. Shilov; Darrel G. Peterson

doi:10.1117/12.205585

10 February 1995 Some new possibilities to design frequency-tunable lidars in the IR (2-14 μm)

Gennady I. Freidman, Guerman A. Pasmanik, Alexander A. Shilov, Darrel G. Peterson

Proceedings Volume 2366, Optical Instrumentation for Gas Emissions Monitoring and Atmospheric Measurements; (1995) https://doi.org/10.1117/12.205585
Event: Optical Sensing for Environmental and Process Monitoring, 1994, McLean, VA, United States

Abstract

Detection of different chemical species in the atmosphere is performed with a frequency- tunable middle IR laser. The design of lidar for this range is discussed. Two pulses can be used, one propagates to an object another provides receiving a reflected signal. When emitting, it is possible to start with YAG:Nd repetitively-pulsed solid-state laser radiation of 1.06 micrometers , 1 - 8 J, 10 - 100 Hz. The first pulse is further converted by OPO in 1.5 - 2.1 micrometers range and then into 4 - 14 micrometers radiation with SRS in hydrogen or other gases. To receive a weak reflected signal of 4 - 14 micrometers we propose using a hydrogen or other Raman amplifier which is pumped with the second OPO pulse (two pulses spaced by 2L/c, L being the distance from an object). A sensitivity for the method better than 10 photon per mode is achieved. For a wavelength less 4 micrometers it is possible to use only one OPO (for example by LiNbO₃) as an emitter and receiver.

Citation Download Citation

Gennady I. Freidman, Guerman A. Pasmanik, Alexander A. Shilov, and Darrel G. Peterson "Some new possibilities to design frequency-tunable lidars in the IR (2-14 μm)", Proc. SPIE 2366, Optical Instrumentation for Gas Emissions Monitoring and Atmospheric Measurements, (10 February 1995); https://doi.org/10.1117/12.205585

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available