Share Email Print
cover

Proceedings Paper

New fiber laser for lidar developments in disaster management
Author(s): C. Besson; B. Augere; G. Canat; N. Cezard; A. Dolfi-Bouteyre; D. Fleury; D. Goular; L. Lombard; C. Planchat; W. Renard; M. Valla
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Recent progress in fiber technology has enabled new laser designs along with all fiber lidar architectures. Their asset is to avoid free-space optics, sparing lengthy alignment procedures and yielding compact setups that are well adapted for field operations and on board applications thanks to their intrinsic vibration-resistant architectures. We present results in remote sensing for disaster management recently achieved with fiber laser systems. Field trials of a 3-paths lidar vibrometer for the remote study of modal parameters of buildings has shown that application-related constraints were fulfilled and that the obtained results are consistent with simultaneous in situ seismic sensors measurements. Remote multi-gas detection can be obtained using broadband infrared spectroscopy. Results obtained on methane concentration measurement using an infrared supercontinuum fiber laser and analysis in the 3-4 μm band are reported. For gas flux retrieval, air velocity measurement is also required. Long range scanning all-fiber wind lidars are now available thanks to innovative laser architectures. High peak power highly coherent pulses can be extracted from Er3+:Yb3+ and Tm3+ active fibers using methods described in the paper. The additional laser power provides increased coherent lidar capability in range and scanning of large areas but also better system resistance to adverse weather conditions. Wind sensing at ranges beyond 10 km have been achieved and on-going tests of a scanning system dedicated to airport safety is reported.

Paper Details

Date Published: 13 October 2014
PDF: 16 pages
Proc. SPIE 9250, Electro-Optical Remote Sensing, Photonic Technologies, and Applications VIII; and Military Applications in Hyperspectral Imaging and High Spatial Resolution Sensing II, 92500H (13 October 2014); doi: 10.1117/12.2073241
Show Author Affiliations
C. Besson, ONERA (France)
B. Augere, ONERA (France)
G. Canat, ONERA (France)
N. Cezard, ONERA (France)
A. Dolfi-Bouteyre, ONERA (France)
D. Fleury, ONERA (France)
D. Goular, ONERA (France)
L. Lombard, ONERA (France)
C. Planchat, ONERA (France)
W. Renard, ONERA (France)
M. Valla, ONERA (France)


Published in SPIE Proceedings Vol. 9250:
Electro-Optical Remote Sensing, Photonic Technologies, and Applications VIII; and Military Applications in Hyperspectral Imaging and High Spatial Resolution Sensing II
Gary Kamerman; Gary J. Bishop; Ainsley Killey; Ove Steinvall; John D. Gonglewski, Editor(s)

© SPIE. Terms of Use
Back to Top