Roithner LED18-PR Light emitting diode Datasheet

LIGHT EMITTING DIODES 1.6÷
÷4.6 µm
1.85 µm 0.9 mW
Model LED18-PR
•Light Emitting Diodes LED18-PR are designed for emitting at a spectral
range around 1850 nm. Heterostructures (HS) are grown on GaSb
substrates. The output emission can be modulated by current flowing in
a forward direction.
•Light Emitting Diodes LED18-PR are developed for using in optical gas
sensors and medical diagnostics. They have stable output power and
lifetime more then 10000 hours.
•Related products: LED18-PR can be used in optical pair with our
photodiodes PD24. Our standard LED Driver provides power supply of
LED18-PR in two recommended here regimes (Quasi-CW and Pulsed).
Parameters
Min
Typ
Max
Wavelength, µm
1.80
1.85
1.89
FWHM, µm
0.15
0.20
0.25
0.7
0.9
1.1
Recommended regimes of operation
f=2 kHz
Quasi-CW
Optical Power, mW
Quasi-CW @ 200 mA
Pulsed@2A
15
20
25
Switching Time, ns
10
30
50
Operating Temperature
Range, oC
-240÷+50
Emitting Area, µm
300x300
1 µs
Pulse
f=2 kHz
2A
500 µs
260 oC
Soldering temperature
Package
200 mA
250 µs 250 µs
TO-18 with Parabolic Reflector
Package TO-18 with Reflector
70
LED18 typical spectra at different temperatures
60
Intensity, a.u.
T=10C
50
40
T=20C
30
20
10
T=65C
0
1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400
Wavelength, nm
Far field pattern
with and without reflector
LED18 - typical Current-voltage
characteristic
40
1,0
0,9
0,8
0,7
0,6
0,5
0,4
0,3
0,2
0,1
0,0
1
30
0,9
0,8
0,7
Current, mA
Power, mW
LED18 - typical power vs. current
characteristic
20
0,6
0,5
0,4
10
0,3
0,2
0,1
0
-5
-4
-3
-2
-1
0
-10
0
1
LED18 (without reflector)
-20
0
50
100
150
Current, mA
200
-30
Voltage,V
LED18-PR (with reflector)
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