New optoelectronic devices for the Mid-Infrared spectral range open completely new possibilities for portable sensors creation. Using Mid-infrared LED-PD optopairs allows developing an instrument that is smaller, less expensive and versatile.

Standard one-wavelength matrices

Currently we offer the following standard LED matrix type with a one peak wavelength and increased optical power - 4-element LED matrix with a one peak wavelength at 3.4 µm or 4.3 µm in TO18 package with a cap/reflector and with a sapphire window or in TO5 package with a built-in thermoelectric module with a cap/reflector and with a sapphire window.



Model Peak emission
wavelength [µm]
FWHM of the
emission band [nm]
Optical power [mW] Voltage 1 [V]
(200 mA)
Maximum operating
current [mA]
Operating/ storage temperature4 Datasheet
QCW mode1
(200 mA)
Pulse mode2, 3
(1 A)
min max min max min typ min typ min-max QCW mode1 Pulse mode2
Lms34LED-4M 3.30 3.44 250 Last data revision: 05.12.2016
previous value: 400
600 70 100 500 700 0.3-1.0 Last data revision: 05.12.2016
previous value: 0.2-0.5
1000 8000 -60...+90
Lms43LED-4M 4.10 4.30 400 Last data revision: 05.12.2016
previous value: 700
1200 Last data revision: 05.12.2016
previous value: 1000
50 100 400 700 0.3-0.7 Last data revision: 05.12.2016
previous value: 0.2-0.8
1000 8000 -60...+90

*1 Repetition rate: 0.5 kHz, pulse duration: 1 ms, duty cycle: 50%
*2 Repetition rate: 0.5 kHz, pulse duration: 20 µs, duty cycle: 1%
*3 Parameter tested for representative sampling; all other parameters tested for each device
*4 Temperature range may vary for different packaging types