LED structures based on InAs substrates with different composition of the active layer allows us to cover spectral range 2.7¸4.6 mm. IBSG offers 8 standard models for this range: LED27 (with central wavelength between 2600nm and 2800nm), LED29 (2800nm-3000nm), LED31 (3000nm-3200nm), LED33 (3200nm-3400nm), LED36 (3500nm-3700nm), LED38 (3700nm-3900nm), LED43 (4100nm-4300nm) and LED46 (4400nm-4600nm). As far as standard full width at half maximum (FWHM) of these spectra lie between 150nm (LED27) and 1000nm (LED46), you can choice suitable model for any application that requires light emitter in the range 2.5¸5.0 mm.

All Light Emitting Diodes can operate at room temperature in CW regime or in different pulse regimes. Short switching time of these devices make possible using of high frequency (hundreds of MHz) modulation or nanosecond pulse regimes. Standard regime of operation that we recommend for receiving maximum average optical power is quasi steady-state regime (quasi-CW) with repetition rate 500 Hz. Using of thermoelectric cooler allows optical power to be stabilized or increased (by cooling).