SLD402S Datasheet, PDF (2/3 Pages) Sony Corporation – 20W Array Laser Diode

SLD402S
Optical and Electrical Characteristics
(TC = 25°C)
Item
Symbol Conditions Min.
Typ.
Max. Unit
Threshold current
Ith
6
15
A
Operating current
Iop
PO = 20W
25
30
A
Operating voltage
Vop
PO = 20W
1.9
3.0
V
Wavelength
λP
PO = 20W
790
840
nm
Radiation angle
Perpendicular θ⊥
Parallel
θ//
PO = 20W
PO = 20W
33
40 degree
8
15 degree
Positional accuracy
Position
Angle
∆X, ∆Y
∆φ⊥
∆φ//
PO = 20W
±300
±5
±4
µm
degree
degree
Differential efficiency
ηD
PO = 20W
0.5
1.0
1.5
W/A
Handling Precautions
Eye protection against laser beams
The optical output of laser diodes ranges from
several mW to 3W. However the optical power
density of the laser beam at the diode chip
reaches 1MW/cm². Unlike gas lasers, since laser
diode beams are divergent, uncollimated laser
diode beams are fairly safe at a laser diode. For
observing laser beams, ALWAYS use safety
goggles that block infrared rays. Usage of IR
scopes, IR cameras and fluorescent plates is also
recommended for monitoring laser beams safely.
In addition, the laser diode array of this product
is not protected by window glass or other
covering (open package product ), so special
care is necessary when handling.
Laser diode ^{Optical material}
Lens
Safety goggles
for protection from
laser beam
IR fluorescent plate
Optical board
Optical power output control device
Temperature control device
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