HAMAMATSU L8933-72, L8933-71, L8933-62, L8933-42, L8933-41 Datasheet
...
PRELIMINARY DATA
p
High optical power from a single chip
FEATURES
High optical power & high radiant flux
density(CW)
L8933 series : 0.5 W / 50 µm
L8446 series : 1 W / 100 µm
L8763 series : 1 W / 50 µm
L8828 series : 2 W / 100 µm
High stability
Long life
Compact
CW LASER DIODES
L8933 , L8446 , L8763 , L8828 SERIES
APPLICATIONS
Pumping source for solid state lasers
Printing
Medical instrument
Measuring instrument
Material Processing
Marking
HAMAMATSU CW laser diodes, L8933, L8446, L8763, L8828 series feature high optical power of 0.5 to 2.0 W
under CW operation. As this is single chip and single element type, emitting area is small (50 µm to 100 µm X 1
µm). Therefore, it is easy to focus on to a small spot with optics. It can be used for various applications such as
pumping of solid lasers, printers, medical instruments etc.
Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions.
ecifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. '2003 Hamamatsu Photonics K.K.
S
CW LASER DIODES L8933 , L8446 , L8763 , L8828 SERIES
ABSOLUTE MAXIMUM RATINGS (Top(c) = 25 °C)
Parameter
Radiant Output Power
Reverse Voltage
Operating Temperature
Storage Temperature
Symbol
Φ
e
V
r
T
op(c)
T
stg
L8933
0.6
L8446
1.2 1.2
Value
2
0 to +30
-30 to +80
L8763
L8828
2.2
CHARACTERISTICS (Top(c) = 25 °C)
Parameter Symbol
Radiant Output Power
Forward Current
Peak Emission Wavelength
Spectral Radiation Half Bandwidth
Forward Voltage
Emitting Area Size
Parallel
Beam Spread Angle
Vertical
Lasing Threshold Current
*1
Tolerance of of peak emission wavelength can be selected from +/- 3nm, +/- 5nm and +/- 10nm for every type of laser diodes listed above. For its details, see the
table of SUFFIX in the next page.
Other laser diodes of different peak emission wavelength are available, such as 830nm, 940nm and 980nm. Contact your local representative for more information.
Φ
λ
∆λ
V
θ
θ
I
e
I
f
p
f
-
//
⊥
th
Conditions
-
L8933 Φ
L8763 Φ
L8446 Φ
L8828 Φ
= 0.5 W
e
= 1 W
e
= 1 W
e
= 2 W
e
Value at designing
FWHM
-
L8933
0.5
0.65
808 ± 3 , 808 ± 5 , 808 ± 10 *1
X 1
50
0.15
L8446
1
1.2
100 X 1
0.35
Value
2
2
8
32
L8763
1
1.2
X 1
50
0.35
L8828
2
2.4
100 X 1
0.6
Unit
W
V
°C
°C
Unit
W
A
nm
nm
V
µm
degree
degree
A
Figure 1:
Radiant Output Power vs. Forward Current (Typ.)
2.5
2.0
(W)
e
1.5
1.0
L8933
0.5
Radiant Output Power Φ
0
0
0.5 1.0
Forward Current I
Figure 3: Directivity (Typ.)
100
80
60
Parallel
Direction
Top View
Parallel
Direction
Top View
Parallel
Direction
Side View
L8763
L8446
1.5
( Top(c) = 25 °C )
2.0
(A)
f
op(c) = 25 °C )
(T
Vertical
Direction
Side View
Top View
L8828
Vertical
Direction
Top View
Vertical
Direction
2.5
Figure 2: Emission Spectrum (Typ.)
100
80
60
40
20
Relative Radiant Output Power (%)
0
804
806
Wavelength (nm)
808
( Top(c) = 25 °C )
810
812
40
20
Relative Radiant Output Power (%)
0
3040 20 10 0 10 20 30 40
Angle (degree)
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