Roithner LED31 Light emitting diode Datasheet

LIGHT EMITTING DIODES 1.6÷
÷4.6 µm
3.1 µm 14 µW
Model LED31
•Light Emitting Diodes LED31 are designed for emitting at a spectral
range around 3100 nm. Heterostructures (HS) are grown on InAs
substrates. The output emission can be modulated by current flowing in
a forward direction.
•Light Emitting Diodes LED31 are developed for using in optical gas
sensors and medical diagnostics. They have stable output power and
lifetime more then 10000 hours.
•Related products: LED31 can be used in optical pair with our photodiodes
PD36. Our standard LED Driver provides power supply of LED31 in two
recommended here regimes (Quasi-CW and Pulsed).
Parameters
Min
Typ
Max
Wavelength, µm
3.00
3.10
3.20
FWHM, µm
0.60
0.70
0.80
12
180
14
200
16
220
10
30
50
Recommended regimes of operation
Quasi-CW @ 200 mA
Pulsed@1A
Switching Time, ns
f=2 kHz
Quasi-CW
Optical Power, µW
200 mA
250 µs 250 µs
1 µs
Pulse
Operating Temperature
Range, oC
-240÷+50
Emitting Area, µm
300x300
Soldering temperature
260 oC
Package
TO-18
f=2 kHz
2A
500 µs
LED31 - typical spectra at different temperatures
14
Intensity, arb.un.
12
T=6 C
T=20 C
10
8
6
T=50 C
4
2
0
2000
2500
3000
3500
4000
Wavelength, nm
Far field pattern
with and without reflector
LED31 - typical Current - Voltage
characteristic
40
LED31 - typical Power vs.
current characteristic
18
1
16
30
14
20
0,8
0,7
0,6
0,5
Current,mA
12
Power, µW
0,9
10
8
6
10
0,2
-2
-1
-10
-20
-30
0
100
Current, mA
150
200
0,1
0
-3
2
50
0,3
0
4
0
0,4
-40
Voltage,V
0
1
LED31 (without reflector)
LED31-PR (with reflector)
4500
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