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The Stratus™ line of lasers is a fully CDRH compliant series of high-performance, circularized laser diode modules. The user looking to incorporate a laser into a flow cytometer or other demanding application will find the Stratus™ laser a breeze to use. Whatever your need is for laser light in the visible and ultraviolet region (660nm, 642nm, 488nm, 445nm, 405nm, and 375nm) you will find a solution in the Vortran Laser Technology, Inc. family of lasers. All Stradus™ lasers are single mode TEM00 lasers with the engineering improvements and enhancements that reflect the accomplishments of a 2nd generation laser diode module.
Technical Specifications
(All beam specifications are for the far-field)
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Model Name
Model Number
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StradusTM 405-100
10010
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StradusTM 445-40
10011
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StradusTM 488-16
10012
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StradusTM 642-110
10013
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StradusTM 660-100
10014
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StradusTM 375-16
10009
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Mode
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TEM00
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TEM00
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TEM00
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TEM00
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TEM00
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TEM00
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Wavelength (nm)
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405 ± 5
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445 ± 5
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488 +2 /-5
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642 +2/-5
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660 +4/-8
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375 ±5
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Power Output (mW)
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100 (-0% +10%)
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40 (-0% +10%)
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16 (-0% +10%)
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110 (-0% +10%)
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100 (-0% +10%)
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16 (-0% +10%)
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Beam Diameter (mm) 1/e2
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~1.3
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~1.3
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~1.3
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~1.3
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~1.3
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~1.1
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Beam Divergence (mrad)
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~0.5
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~0.5
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~0.5
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~0.5
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~0.5
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~0.5
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M2 (Beam Quality)
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<1.35
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<1.35
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<1.35
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<1.25
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<1.25
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<1.35
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Beam Circularity
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>90%
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>90%
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>90%
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>90%
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>90%
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>90%
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RMS Noise (10Hz – 10MHz)
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<0.1%
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<0.1%
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<0.1%
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<0.2%
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<0.2%
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<0.1%
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Peak to Peak Noise
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<1%
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<1%
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<1%
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<1%
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<1%
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<1%
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Laser Power Control (Analog Modulation), KHz
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>500
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>500
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>500
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>500
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>500
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>500
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Laser Enable Bandwidth
(Digital Modulation)
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1.0 msec risetime
6 msec delay
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1.0 msec risetime
6 msec delay
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1.0 msec risetime
6 msec delay
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1.0 msec risetime
6 msec delay
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1.0 msec risetime
6 msec delay
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1.0 msec risetime
6 mil sec delay
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Modulation Depth
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∞ (full off)
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∞ (full off)
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∞ (full off)
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∞ (full off)
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∞ (full off)
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∞ (full off)
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Power Stability
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<2% (16 hours)
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<2% (16 hours)
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<2% (16 hours)
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<2% (16 hours)
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<2% (16 hours)
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<2% (16 hours)
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Pointing Stability (µrad/ºC)
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<5
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<5
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<5
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<5
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<5
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<5
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Warm-up Time (minutes)
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<10
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<10
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<10
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<10
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<10
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<10
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Polarization
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Vertical ±2º
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Vertical ±2º
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Vertical ±2º
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Vertical ±2º
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Vertical ±2º
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Vertical ±2º
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Polarization Extinction Ratio1
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>100:1
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>100:1
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>100:1
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>100:1
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>100:1
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>100:1
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Beam Centration (mm)
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<0.5
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<0.5
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<0.5
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<0.5
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<0.5
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<0.5
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Beam Alignment (mrad)
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<5
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<5
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<5
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<5
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<5
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<5
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Laser Head Wt. (grams)
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210
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210
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210
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210
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210
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210
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Control Box Wt. (grams)
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550
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550
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550
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550
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550
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550
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Laser Cable Length (feet)
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2
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2
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2
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2
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2
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2
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CDRH Classification
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Class IIIb
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Class IIIb
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Class IIIb
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Class IIIb
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Class IIIb
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Class IIIb
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ESD Protection
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Class 4
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Class 4
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Class 4
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Class 4
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Class 4
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Class 4
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Communication
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USB / RS-232
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USB / RS-232
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USB / RS-232
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USB / RS-232
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USB / RS-232
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USB / RS-232
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Baseplate Operating Temperature
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45oC
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45oC
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45oC
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40oC
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45oC
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45oC
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Safety Certification
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IEC60825-1
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IEC60825-1
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IEC60825-1
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IEC60825-1
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IEC60825-1
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IEC60825-1
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Compliance
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ISO, CE, RoHS
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ISO, CE, RoHS
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ISO, CE, RoHS
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ISO, CE, RoHS
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ISO, CE, RoHS
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ISO, CE, RoHS
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Power Requirements (to head)
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12VDC, 1.5A max
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12VDC, 1.5A max
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12VDC, 1.5A max
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12VDC, 1.5A max
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12VDC, 1.5A max
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12VDC, 1.5A max
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Power Requirements (to control box)
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110V/220V AC
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110V/220V AC
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110V/220V AC
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110V/220V AC
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110V/220V AC
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110V/220V AC
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Note: 1 Polarization ratio > 1000:1 PIR available as option
Printable version
Overview of Laser Head
(Click here for larger view)
From the figure above, one can see the optics module and how it is secured to the mounting base and is sealed from the contaminant producing electronics (PCBA’s as well as the Thermal Electric cooling and heating system). All electronics necessary to control and produce the laser light are contained within the laser head on 4 small PC boards. A user can merely hook up a 12 volt DC source to the miniature D connector on the back of the laser head and turn the laser on and off manually. The user can, if desired, also connect a PC to the laser head through the USB connector (or through the RS-232 signals available at the miniature D connector) – thus controlling all laser functions from the computer interface. The user can, of course, use the remote control box to conveniently supply the 12V DC power to the laser head and also supply a convenient means to interface the computer via the RS-232 as well as the other signals and functions discussed in the section on the remote control box.
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