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.

Light Emitting Diodes for 2800-5000 nm spectral range

Light Emitting Diodes for 2800-5000 nm spectral range are fabricated from narrow band-gap InAsSb/InAsSbP-based heterostructures lattice-matched to InAs substrate.

 

  • Maximum operating current at quasi-CW mode is 250 mA;
  • Maximum operating current at pulse mode is 2 000 mA;
  • Switching time is 30-50 ns;
  • Operating temperature range is -60...+80 °C.

Model Peak emission
wavelength, µm
FWHM of the
emission band, nm
Power, µW Voltage, V Maximum operating
current, mA
Storage
temp., °С
Operating
temp., °С
Datasheet
QCW mode * Pulse mode **
min max min max min max min max QCW mode Pulse mode
Standard LED models (LED chip with circular or ring top contact) - LmsXXLED
LMS34LED 3.30 3.49 400 600 25 45 320 480 0.2-0.5 250 2000 - -200..+50
LMS34LED
high power
3.30 3.49 400 500 45 80 480 720 0.2-0.5 250 2000 - -200..+50
Lms36LED 3.50 3.69 400 600 20 40 180 220 0.2-0.5 250 2000 - -200..+50
Lms38LED 3.70 3.94 500 700 20 40 180 220 0.5-0.8 250 2000 - -200..+50
Lms41LED 3.95 4.09 700 1000 15 30 180 220 0.5-0.7 250 2000 - -200..+50
Lms43LED 4.10 4.30 700 1000 8 12 180 220 0.2-0.8 250 2000 - -200..+50
Lms46LED 4.40 4.60 700 1100 2 4 100 140 1.5-3.0 250 2000 - -200..+50
LED models with glass covering - LmsXXLED-CG
Lms34LED-CG 3.30 3.55 250 600 80 - 950 - 0.2-0.5 250 1000 -25..+50 -25..+50
Lms38LED-CG 3.70 3.94 500 700 45 - 500 - 0.2-0.8 250 1000 -25..+50 -25..+50
Lms43LED-CG 4.10 4.30 600 1200 25 - 500 - 0.2-0.8 250 1000 -25..+50 -25..+50

 

* Repetition rate: 0.5 kHz, pulse duration: 1 ms, duty cycle: 50%, current: 200 mA

** Repetition rate: 1 kHz, pulse duration: 1 µs, duty cycle: 0.1%, current: 1 A