LIGHT EMITTING DIODES
1.6÷4.6
µ
m
÷
Model LED29-TEC
•Light Emitting Diodes
LED29-TEC
are designed for emitting at a spectral range
around 2900 nm. Thermocooler and thermoresistor are mounted inside 9 mm
package TO-5. Heterostructures (HS) are grown on InAs substrates
•Light Emitting Diodes
LED29-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:
LED29
can be used in optical pair with our photodiodes
PD36.
Our standard
LED Driver
provides power supply of
LED29-TEC
in two
recommended here regimes (Quasi-CW and Pulsed).
Main thermocooler parameters (without load)
Recommended regimes of
LED operation
Quasi-CW
f=2 kHz
2 .9
µ
m
8
µ
W
Parameters
Wavelength,
µm
FWHM,
µm
Optical Power,
µW
Quasi-CW @ 200 mA
Pulsed@2A
Switching Time, ns
Range of temperature
control
o
C
Emitting Area,
µm
Soldering
temperature
Package
Min
2.80
0.60
6
120
10
Typ
2.90
0.70
8
150
30
-10÷+60
300x300
95 C
o
Max
3.00
0.80
10
170
50
I
max
Q
max
U
max
(Amps) (Watts) (Volts)
0.7
0.4
1.0
Thermoresistance, kOhm
50
40
30
20
10
0
-20
0
20
40
Temperature, C
∆T
max
°C
67
200 mA
250
µs
Pulsed
250
µs
1
µs
2A
500
µs
f=2 kHz
TO-5 with thermocooler
and thermistor
60
Package TO-5
LED29 typical spectra at different temperatures
LED chip
Thermoresistor
TEC
1,2
0,9
0,6
Intensity, a.u.
T=10°C
T=25°C
T=46°C
LEAD
TOP SIDE VIEW
0,3
Thermoresistor
Thermoresistor
0
1800
2200
2600
3000 3400 3800
Wavelength, nm
4200
4600
5000
LED29 - typical power vs. current
characteristic at different temperatures
LED29 - typical Current-voltage
characteristic
40
30
Far field pattern
with and without reflector
10
8
Power,
µ
W
Current, mA
20
10
0
-1 -0,8 -0,6 -0,4 -0,2 0
-10
-20
-30
-40
Voltage, V
LED29-PR (with reflector)
0,2 0,4
LED29 (without reflector)
6
4
2
0
0
50
100
Current, mA
150
200
T=10°C
T=25°C
T=46°C
ROITHNER [ Roithner LaserTechnik GmbH ]
