Product description: 
 Diode-pumped green laser power infrared laser tube, the nonlinear crystal and parameters of the collimating lens group, producing a circular beam divergence and spot size is not the same export power according to different use for adjustment can be customized according to user specific purpose. 
 The lasers are made of high-quality original import laser diode, coupled with high-performance drive, temperature control and power supply, optical coated glass lens group composed of high reliability, high stability, strong anti-interference, good consistency, use long life and other features. 

 The products are widely used in a variety of laboratory equipment, military equipment and instruments and equipment, laser show, laser medical equipment, laser locator and so on. 



 Technical parameters: 
 Model Model 
 The ST-457-(200-500) 

 Wavelength Wavelength 
 457nm 

 Work the way the Operating the mode 
 CW 

 Output power Output power 
 200-500mW 

 Spatial, the mode of the transverse mode structure 
 Near the TEM00 

 Longitudinal mode structure Longitudinal the mode 
 Multi 

 Spectral line width of the Spectral linewidth 
 0.1nm 

 Coherence length Coherence length 
 1-5m 

 Polarization direction of Polarization 
 - Linear content verticalCompare 

 Polarization ratio Polarization ratio is 
 > 100:1 

 Beam quality Beam, of quality 
 M2 <2 

 The beam divergence full angle Beam, the angle divergence full 
 2mrad 

 Light hole spot diameter Beam, diameter at aperture support 
 3mm 

 Spot ellipticity Beam, influence the ellipticity 
 1 ± 0.1 

 The facula point stability Beam, pointing stability 
 0.03mrad 

 Noise Noise 
 <1% 10Hz-50MHz 

 Power stability of the Power stability 
 ± 1, 3, 5% over 8 hrs rms 

 Light hole height of Optical axis height 
 20.6mm 

 Laser size of the Size of a laser the head 
 L x W x H = 208 × 60 × 75mm 

 Laser power size of the Size of power supply 
 L x W x H = 200 × 145 × 90mm 

 Cable length Cable-a laser head 
 1.0, 1.5m 

 Laser Weight Weight of a laser the head 
 1.6kg 

 Laser power supply Weight of power supply 
 3.2kg 

 TTL modulation mode the TTL modulation 
 0V-no lasing, 5V-lasing 

 TTL modulation frequency Frequency of the TTL 
 1kHz-30kHz 

 TTL modulation efficiency Efficiency of the TTL 
 40% -60% 

 Analog modulation Analogue modulation 
 0-5V 

 Analog modulation frequency Frequency of analogue 
 1kHz-20kHz 

 Cooling the mode of cooling methods 
 TEC 

 Operating voltage Operating votage 
 90-260VAC 

 Machine maximum power dissipation Maximum power consumption 
 60W 

 Warm-up time Warm-up time 
 15 minutes 

 Operating temperature Operating temperature 
 10-35 ℃ 

 Storage temperature of the Storage temperature 
 -20-60 ° C (<90% of the relative humidity, non-condensing) 

 Life of Expected life time 
 10,000 hours 

 Warranty Warranty time 
 1 year