Vescent Photonics D2 Series Product Manual
1.2. Specifications
Min. Typical Max. Units
Wavelength 780.24 nm
Output power 30 40 50 mW
Beam diameter 0.8 1.1 1.7
mm
(1/e
2
dia.)
Polarization Horizontal
Optical isolation 35 dB
Operating current 150 180 mA
Threshold Current 40 50 70 mA
Temperature range
Stage 1, housing
Stage 2, laser
15
0
20
15
40
50
(1)
°C
Temperature stability See Laser Controller,
Model No. D2-105
Safety Class 3B
Beam height 0.95 inches
Total package Size
(L x W x H)
3.75 x 4 x 2 inches
1.3. Inputs, Outputs, and Controls
Vertical and horizontal pointing
The vertical and horizontal alignment of the laser system is factory set and should not need
adjustment. However, if your specific application requires it or the system is misaligned, the
DBR subassembly has adjustments to steer the beam for alignment to the spectroscopy module or
other modules. The beam pointing is adjusted by loosening the three lock screws ½ turn past the
crack point and adjusting the x and y positioning setscrews on the top and left side (facing out
along the laser beam) of the module (see Figure 3). For more detailed instructions, see section
1.4.
1
Operation above 40° C can reduce the lifetime of the laser diode
7
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