LED34-TEC Datasheet, PDF (1/1 Pages) Roithner LaserTechnik GmbH – LIGHT EMITTING DIODES

LIGHT EMITTING DIODES 1.6÷4.6 µm
Model LED34-TEC 3.4 µm 24 µW
•Light Emitting Diodes LED34-TEC are designed for emitting at a spectral range
around 3400 nm. Thermocooler and thermoresistor are mounted inside 9 mm
package TO-5. Heterostructures (HS) are grown on InAs substrates
•Light Emitting Diodes LED34-TEC are developed for using in optical gas
sensors and medical diagnostics. Such construction gives possibility for
temperature stabilization of LED parameters. Lifetime is more then 10000 hours.
•Related products: LED34 can be used in optical pair with our photodiodes
PD36. Our standard LED Driver provides power supply of LED34-TEC in two
recommended here regimes (Quasi-CW and Pulsed).
Parameters
Wavelength, µm
FWHM, µm
Optical Power, µW
Quasi-CW @ 200 mA
Pulsed@2A
Switching Time, ns
Range of temperature
control ^oC
Emitting Area, µm
Soldering
temperature
Package
Min
3.30
0.60
Typ
3.40
0.70
Max
3.50
0.80
20 24 28
320 400 480
10 30 50
-10÷+60
300x300
95 ^oC
TO-5 with thermocooler
and thermistor
Recommended regimes of
LED operation
Main thermocooler parameters (without load)
Quasi-CW
f=2 kHz
200 mA
I_max
Q_max
U_max ∆T_max
(Amps) (Watts) (Volts) °C
0.7 0.4 1.0 67
50
250 µs 250 µs
40
Pulsed
1 µs
30
2A
f=2 kHz
20
10
500 µs
0
-20
0
20
40
60
Temperature, C
Package TO-5
LED chip
Thermoresistor
TEC
LEAD
Thermoresistor
Thermoresistor
TOP SIDE VIEW
LED34 typical spectra at different temperatures
45
40
35
30
T=4°C
25
T=21°C
20
T=47°C
15
10
5
0
2500 2700 2900 3100 3300 3500 3700 3900 4100 4300 4500
Wavelength, nm
LED34 - typical power vs. current
characteristic at different
temperatures
32
28
24
20
16
12
8
4
0
0
c
T=4°C
T=21°C
T=47°C
50
100 150 200
Current, mA
LED34 - typical Current-voltage
characteristic
40
30
20
10
0
-1 -0,8 -0,6 -0,4 -0,-210 0 0,2 0,4
-20
-30
-40
Voltage, V
Far field pattern
with and without reflector
LED34 (without reflector)
LED34-PR (with reflector)