1
SLD327YT
E95Z13B01-PS
3W High Power Laser Diode
Description
The SLD327YT has a compatible package, and
allows independent thermal and electric design.
It is a high power laser diode that affords easy
optical design.
Features
High-optical power output
Recommended optical power output: P
O
= 3.0W
High-optical power density: 3W/200m
(Emitting line width)
Applications
Solid state laser excitation
Medical use
Material processing
Measurement
Structure
AlGaAs quantum well structure laser diode
Operating Lifetime
MTTF 10,000H (effective value) at Po = 3.0W, Tth = 25C
Absolute Maximum Ratings (Tth = 25C)
Optical power output
P
O
3.3
W
Reverse voltage
V
R
LD
2
V
PD
15
V
Operating temperature (Tth)
Topr
10 to +30
C
Storage temperature
Tstg
40 to +85
C
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
M-288
No.
Function
1
2
3
4
5
TE cooler (negative)
--
Case
Laser diode (anode)
Thermistor
6
7
8
9
10
Thermistor
Laser diode (cathode)
Photo diode (anode)
Photo diode (cathode)
TE cooler (positive)
TE Cooler
Case
LD
PD
TH
1
3
4
5
6
7
8
9
10
Pin Configuration (Top View)
Warranty
This warranty period shall be 90 days after receipt of the product or
1,000 hours operation time whichever is shorter.
Sony Quality Assurance Department shall analyze any product that
fails during said warranty period, and if the analysis results show that
the product failed due to material or manufacturing defects on the
part of Sony, the product shall be replaced free of charge.
Laser diodes naturally have differing lifetimes which follow a Weibull
distribution.
Special warranties are also available.
Equivalent Circuit
2
SLD327YT
Optical and Electrical Characteristics
(Tth = Thermistor temperature, Tth = 25C)
Handling Precautions
Eye protection against laser beams
The optical output of laser diodes ranges from
several mW to 10W. However the optical power
density of the laser beam at the diode chip
reaches 1.5MW/cm
2
. 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.
Item
Symbol
Conditions
Min.
Typ.
Max.
Unit
Ith
Iop
Vop
P
//
X,
Y
//
D
Imon
Rth
Threshold current
Operating current
Operating voltage
Wavelength
Radiation angle
Positional accuracy
Differential efficiency
Monitor current
Thermistor resistance
P
O
= 3.0W
P
O
= 3.0W
P
O
= 3.0W
P
O
= 3.0W
P
O
= 3.0W
P
O
= 3.0W
P
O
= 3.0W
V
R
= 10V
Tth = 25C
790
20
5
0.5
0.2
0.6
4.0
2.4
30
10
0.85
1.1
10
2.0
6.0
3.0
840
40
20
100
3
4
1.5
4.0
A
A
V
nm
degree
degree
m
degree
degree
W/A
mA
k
Perpendicular
Parallel
Position
Angle
Wavelength Selection
Type
SLD327YT-1
SLD327YT-2
SLD327YT-3
Wavelength (nm)
795 5
810 10
830 10
Type
SLD327YT-21
SLD327YT-24
SLD327YT-25
Wavelength (nm)
798 3
807 3
810 3
Safety goggles for
protection from
laser beam
IR fluorescent plate
Optical
material
Lens
Laser diode
Optical board
Optical power output control device
Temperature control device
3
SLD327YT
Example of Representative Characteristics
Optical power output vs.
Forward current characteristics
Tth = 25C
I
F
Forward current [A]
0
1.5
3
4.5
6
7.5
5
4
3
2
1
P
O
O
p
t
i
c
a
l
p
o
w
e
r
o
u
t
p
u
t
[
W
]
Far field pattern
Angle [degree]
40
20
0
20
40
1.0
0.8
0.6
0.4
0.2
R
e
l
a
t
i
v
e
r
a
d
i
a
n
t
i
n
t
e
n
s
i
t
y
Tth = 25C
P
O
= 3.0W
//
Oscillation wavelength
Wavelength [nm]
792
796
800
804
808
1.0
0.8
0.6
0.4
0.2
R
e
l
a
t
i
v
e
r
a
d
i
a
n
t
i
n
t
e
n
s
i
t
y
Tth = 25C
P
O
= 3.0W
Thermistor characteristics
TthThermistor temperature [C]
10 0
10
40
60
50
10
5
0
R
t
h
T
h
e
r
m
i
s
t
o
r
r
e
s
i
s
t
a
n
c
e
[
k
]
20
30
50
70
TE cooler characteristics
40
Q
A
b
s
o
r
b
e
d
h
e
a
t
[
W
]
30
20
10
0
TTemperature difference [C]
0
20
40
60
80
20
15
10
5
0
V
T
P
i
n
v
o
l
t
a
g
e
[
V
]
Tc = 25C
3A
2A
1A
1A
2A
3A
TvsV T = 4A
TvsQ
T = 4A
TE cooler characteristics
40
Q
A
b
s
o
r
b
e
d
h
e
a
t
[
W
]
30
20
10
0
TTemperature difference [C]
0
20
40
60
80
20
15
10
5
0
V
T
P
i
n
v
o
l
t
a
g
e
[
V
]
Tc = 33C
3A
2A
1A
1A
2A
3A
TvsV T = 4A
TvsQ
T = 4A
T
Tth
Tc
: Tc Tth
: Thermistor temperature
: Case temperature
T
Tth
Tc
: Tc Tth
: Thermistor temperature
: Case temperature
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