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
Value
L8933
0.6
L8446
1.2
2
0 to +30
-30 to +80
L8763
1.2
L8828
2.2
Unit
W
V
°C
°C
CHARACTERISTICS (Top(c) = 25
°C)
Parameter
Radiant Output Power
Forward Current
Peak Emission Wavelength
Spectral Radiation Half Bandwidth
Forward Voltage
Emitting Area Size
Beam Spread Angle
Parallel
Vertical
Symbol
Φ
e
I
f
λ
p
∆λ
V
f
-
θ
//
θ
⊥
I
th
Value
Conditions
-
L8933
Φ
e
= 0.5 W
L8763
Φ
e
= 1 W
L8446
Φ
e
= 1 W
L8828
Φ
e
= 2 W
Value at designing
FWHM
-
0.15
0.35
50
X
1
100
X
1
8
32
0.35
0.6
L8933
0.5
0.65
L8446
1
1.2
L8763
1
1.2
L8828
2
2.4
Unit
W
A
nm
nm
V
50
X
1
100
X
1
808
±
3 , 808
±
5 , 808
±
10
*
1
2
2
µ
m
degree
degree
A
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.
Figure 1: Radiant Output Power vs. Forward Current (Typ.)
2.5
( T
op(c)
= 25
°C
)
Figure 2: Emission Spectrum (Typ.)
( T
op(c)
= 25
°C
)
100
L8828
Radiant Output Power
Φ
e
(W)
2.0
Relative Radiant Output Power (%)
80
1.5
60
L8763
L8446
1.0
L8933
0.5
40
20
0
0
0.5
1.5
1.0
2.0
Forward Current I
f
(A)
2.5
0
804
806
808
Wavelength (nm)
810
812
Figure 3: Directivity (Typ.)
100
Parallel
Direction
Parallel
Direction
(T
op(c)
= 25
°C
)
Vertical
Direction
Vertical
Direction
Relative Radiant Output Power (%)
80
Top View
Side View
Side View
Parallel
Direction
Top View
Vertical
Direction
60
Top View
Top View
40
20
0
40
30
20
10
0
10
Angle (degree)
20
30
40
HAMAMATSU [ HAMAMATSU CORPORATION ]
