SLD
(Super Luminescent Diode)
L8414-04
PRELIMINARY DATA
Infrared Emitter with High Radiant Flux Density and Low Coherency
鈻燜EATURES
鈼廐igh radiant flux density
鈼廘ow coherency
鈻燗PPLICATIONS
鈼廜ptical fiber gyroscopes
鈼廜ptical communication
鈼廜ptical measurement systems
The super luminescent diode (SLD) is an infrared emitter that has the advantages of both the laser diode and the
LED; high radiant flux density and low coherency. The SLD was developed as a device that compensates for the
disadvantages of laser diodes such as their coherent noise and is therefore ideal for applications where a higher S/N
ratio is essential, for example in light-applied measurements and optical communications. A photodiode chip has also
been mounted within the same package for monitoring the SLD output.
鈻燗BSOLUTE MAXIMUM RATINGS (Tc=25鈩?
Parameter
Forward Current
Radiant flux (Light output)
SLD Reverse Voltage
PD Reverse Voltage
Operating Temperature
Storage Temperature
Symbol
I
F
蠁
e
V
R1
V
R2
T
opr
T
stg
Value
170
5
1.5
20
-10 to +70
-20 to +80
Unit
mA
mW
V
V
鈩?/div>
鈩?/div>
鈻燛LECTRICAL AND OPTICAL CHARACTERISTICS (Tc=25鈩? 蠁e=3mW)
Parameter
Peak Emission Wavelength
Spectral Radiation Half Bandwidth
Forward Voltage
Forward Current
Beam Spread Angle : Parallel
: Vertical
Monitor PD Current
Cut-off Frequency
Coherent Length
Symbol
位p
螖位
V
F
I
F
胃//
胃鈯?/div>
Im
fc
Lc
Min.
810
10
1.8
-
15
25
80
-
-
Typ.
830
15
2.0
100
20
35
160
90
50
Max.
850
25
2.2
120
25
45
260
-
-
Unit
nm
nm
V
mA
degree
degree
渭A
MHz
渭m
Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions.
C
Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein.
鈼?/div>
2001 Hamamatsu Photonics K.K.
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