÷÷4.6

M

R

2

9

8

W

•Light Emitting Diodes LED29-PR are designed for emitting at a spectral

range around 2900 nm. Heterostructures (HS) are grown on InAs

substrates. The output emission can be modulated by current flowing in

a forward direction.

•Light Emitting Diodes LED29-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: LED29-PR can be used in optical pair with our

photodiodes PD36. Our standard LED Driver provides power supply of

LED29-PR in two recommended here regimes (Quasi-CW and Pulsed).

Parameters

Min

Typ

Max

Wavelength,

µm

2.80

2.90

3.00

FWHM,

µm

0.60

0.70

0.80

Optical Power,

µW

Quasi-CW @ 200 mA

Pulsed@2A

6

120

8

150

10

170

Switching Time, ns

10

30

50

Operating Temperature

Range,

-240

÷+50

Emitting Area,

µm

300x300

Soldering temperature

260

Package

TO-18 with Parabolic Reflector

LED29 typical spectra at different temperatures

0

0,3

0,6

0,9

1,2

2200 2400 2600 2800 3000 3200 3400 3600 3800 4000

Wavelength, nm

T=10°C

T=25°C

T=46°C

LED29 - typical Power vs.

Current characteristic

0

1

2

3

4

5

6

7

8

9

0

50

100

150

200

Current, mA

LED29 - typical Current-voltage

characteristic

-40

-30

-20

-10

0

10

20

30

40

-1

-0,8 -0,6 -0,4 -0,2

0

0,2

0,4

Voltage, V

Far field pattern

with and without reflector

LED29 (without reflector)

LED29-PR (with reflector)

Package TO-18 with Reflector

Recommended regimes of operation

Quasi-CW

200 mA

250

µs

250

µs

1

µs

2 A

500

µs

f=2 kHz

f=2 kHz

Pulse