www.roithner-laser.com

1

Z

LED21

Description

LED21 series are fabricated from narrow band-gap GaInAsSb/AlGaAsSb heterostructures lattice matched to

GaSb substrate. This Mid-IR LED provides a typical peak wavelength of 2.15 µm and optical power of

typ. 1 mW qCW. It comes in TO-18 package a with a glass window.

Parameter

Symbol

Conditions

Values

Unit

Min.

Typ.

Max.

Peak Wavelength *

1

2.10

2.15

2.19

µm

Half Width (FWHM)

∆λ

150

200

250

nm

Optical Output Power, qCW

0.8

1.0

1.2

mW

Optical Output Power, pulsed

duty cycle 0.1%

15

25

30

mW

Operating Voltage

0.5

-

1.0

V

Switching Time

10

20

30

ns

Operating Temperature

-200

-

+50

°C

Soldering Temperature

180

°C

Operating Regime

LED Basic Circuit Connection

Suitable Drivers And Evaluation Boards

•

D-31M

•

D-41

•

D-51

•

mD-1c

•

mD-1p

We recommend to use Quasi Continuous Wave (qCW) mode with duty cycle 50% or 25% to obtain

maximum average optical power, and short Pulse mode to obtain maximum peak power.

CW (continuous wave) mode is NOT recommended!

Quasi Continuous Wave (qCW) mode

Pulse Mode

v 1.0 12.02.2014