With the progress of the human technological potential, elimination or minimization of the effects of global atmospheric pollution has become a must for the absolute majority of states in their environmental activity. The acquisition of on-line information about the state of the atmospheric layer is an integral part of both global and regional atmospheric monitoring. Lidar systems utilizing laser radiation sources become more and more often integrated into the systems of atmospheric monitoring.
  The SOLAR TII two-channel laser system is specially designed for use in lidar complexes to monitor the aerosol component, to determine the level of the atmospheric pollution with gases (NH₃ , SO₂ , NO_x , O₃ , or others), to monitor the vertical distribution of ozone in stratosphere, as well as in other applications.

• Simultaneous lasing at several wavelengths
• Broad spectral range (235 to 1064 nm)
• Generation of narrow-linewidth (down to 35 pm) radiation
• A wide range of output energies (1 to 650 mJ)
• Automatic setting and control of output parameters
• Energy and wavelength control for each output pulse in both of the channels in the real time scale
• Heat/Impact-resistant construction & stable parameters
• Completely automatic system for measuring each pulse parameters
• High noise-immunity
• Control and data transfer via fiber optics

	LASER PARAMETERS   Wavelength     Channel I       Nd:YAG laser:       Ti:Sapphire laser         at fundamental:         at second harmonic:         at third harmonic:       Channel II         Nd:YAG laser:         Ti:Sapphire laser           at fundamental:           at second harmonic:           at third harmonic:         Laser line-width (max)           Nd:YAG laser:           Ti:Sapphire laser:         Max. wavelength stability         (with 8hrs-continuous laser running):         Beam diameter (before output telescope)           Nd:YAG laser:           Ti:Sapphire laser: 532 nm, 266 nm 700-950 nm 350-475 nm 235-315 nm 1064 nm, 355 nm 700-950 nm 350-475 nm 235-315 nm 0,005 nm 0,035 nm 0,02 nm </= 7,5 mm </= 3,0 mm ENERGY CHARACTERISTICS   Pulse energy (before output telescope)     Nd:YAG laser       1064 nm:       532 nm:       355 nm:       266 nm:     Ti:Sapphire laser       at fundamental:       at second harmonic (450 nm):       at third harmonic (300 nm): 650 mJ 400 mJ 150 mJ 120 mJ 75 mJ 30 mJ 10 mJ SPATIAL CHARACTERISTICS   Max. beam divergence:   Telescopes:   Separation between channel optic axes: 0,5 mrad achromatic 8x 350 mm TIME CHARACTERISTICS   Max. pulse width (1064 nm):   Pulse repetition rate: 16 ns 10 Hz (20 Hz) PULSE PARAMETERS MEASURED AND MEASUREMENT ACCURACY   Pulse energy measurement     measurement range:     measurement accuracy:   Wavelength measurement     measurement range:     measurement accuracy       700-950 nm:       350-475 nm:       235-315 nm: 1-650 mJ +/- 3% 230-959 nm 0,04 nm 0,02 nm 0,013 nm ELECTRIC CHARACTERISTICS   Power requirements:   External synchronization: single phase, 220V +/-20%, 50-60 Hz, 1850 W (max) TTL level (+5V) OVERALL SIZE, WEIGHT   Laser heads module:   Power & Cooling unit: 1500x1200x250 mm, 385 kg 420x510x1080 mm, 96 kg