LIGHT EMITTING DIODES

1.6

÷÷4.6

M

C

4

6

6

W

•Light Emitting Diodes LED46-TEC are designed for emitting at a spectral range

around 4600 nm. Thermocooler and thermoresistor are mounted inside 9 mm

package TO-5. Heterostructures (HS) are grown on InAs substrates

•Light Emitting Diodes LED46-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: Our standard LED

Driver

provides power supply of

LED46-TEC in two recommended here regimes (Quasi-CW and Pulsed).

Parameters

Min

Typ

Max

Wavelength,

µm

4.40

4.50

4.60

FWHM,

µm

1.00

1.10

1.20

Optical Power,

µW

Quasi-CW @ 200 mA

Pulsed@2A

4

100

6

120

8

140

Switching Time, ns

10

30

50

Range of temperature

control

-10

÷+60

Emitting Area,

µm

300x300

Soldering

temperature

95

Package

TO-5 with thermocooler

and thermistor

0

10

20

30

40

50

-20

0

20

40

60

Temperature, C

max

∆T

max

(Amps) (Watts) (Volts)

°C

0.7

0.4

1.0

67

LED chip

Thermoresistor

TEC

LEAD

TOP SIDE VIEW

Thermoresistor

Thermoresistor

LED46 typical spectra at different temperatures

0

0,5

1

1,5

2

2500

3000

3500

4000

4500

5000

5500

Wavelength, nm

T=24°C

T=35°C

T=55°C

0

2

4

6

8

0

50

100

150

200

Current, mA

T=24°C

T=35°C

T=55°C

LED46 - typical power vs .current

characteristic at different temperatures

LED46 - typical Current - Voltage

characteristic

-30

-20

-10

0

10

20

30

40

-5

-4

-3

-2

-1

0

1

2

Voltage,V

Far field pattern

with and without reflector

LED46 (without reflector)

LED46-PR (with reflector)

Package TO-5

Main thermocooler parameters (without load)

Recommended regimes of

LED operation

Quasi-CW

200 mA

250

µs

1

µs

2 A

500

µs

f=2 kHz

f=2 kHz

Pulsed

250

µs