Project Title:

All-solid-state laser transmitter for an airborne ozone lidar

94-1	08.03	2299	B	

All-solid-state laser transmitter for an airborne ozone lidar

Abstract:

Our proposed source is an innovative, all solid-state laser system 
that, via a creative combination of enabling component 
technologies, provides a new laser source useful for ozone 
differential absorption lidar (DIAL) systems. The proposed laser 
design is expected to produce > 100 mJ pulses in the 285- to 315-nm 
region that is typically used for ozone DIAL studies. The 
combination of component/subsystem technologies that have been 
incorporated in the design will provide on-line/off-line pulse 
pairs with a temporal separation of < 0.5 ms. In addition, the 
output pulses will be near-diffraction-limited in spatial quality 
and near-transform-limited in spectral linewidth. This is 
accomplished in a compact, rugged package by employing unique 
designs for the flashlamp driver, the injection seeding sources, 
the second and third harmonic generation modules and the overall 
opto-mechanical packaging.
We have demonstrated each of the enabling technologies individually 
with the exception of the passive harmonic generation schemes. On 
the Phase I project we would attempt to demonstrate the feasibility 
of this concept. On the Phase II effort, if pursued, we would 
construct and test a complete transmitter with all of the critical 
subsystems in an integrated package.

The proposed laser system would have direct commercial application 
for pollution monitoring. A number of criteria pollutants (e.g. 
SO2, NO2) could he monitored in the visible and ultraviolet with 
appropriate selection of operating wavelength.

Key Words

Schwartz Electro-Optics, Inc.
45 Winthrop St
Concord, MA 01742
(508) 371-2299