LIGHT EMITTING DIODES 1.6÷ ÷4.6 µm 2.35 µm Model LED23-TEC-PR 0.8 mW •Light Emitting Diodes LED23-TEC-PR are designed for emitting at a spectral range around 2350 nm. Thermocooler and thermoresistor are mounted inside 9 mm package TO-5. Heterostructures (HS) are grown on GaSb substrates •Light Emitting Diodes LED23-TEC-PR are developed for using in optical gas sensors and medical diagnostics. Such construction gives possibility for temperature stabilization of LED parameters. Lifetime is more then 10000 hours. •Related products: LED23 can be used in optical pair with our photodiodes PD24. Our standard LED Driver provides power supply of LED23-TEC-PR in two recommended here regimes (Quasi-CW and Pulsed). Min Typ Max Wavelength, µm 2.30 2.35 2.39 FWHM, µm 0.17 0.22 0.27 0.6 12 0.8 16 1.0 20 10 30 50 Recommended regimes of LED operation Quasi-CW f=2 kHz Optical Power, µW Quasi-CW @ 200 mA Pulsed@2A Switching Time, ns 200 mA Range of temperature control oC 250 µs 250 µs Pulsed 1 µs -10÷+60 Emitting Area, µm 300x300 f=2 kHz 2A Soldering 500 µs 95 oC temperature Imax Qmax Umax (Amps) (Watts) (Volts) 0.7 0.4 1.0 ∆Tmax °C 67 50 40 30 20 10 0 TO-5 with Thermocooler, Package Main thermocooler parameters (without load) Thermoresistance, kOhm Parameters -20 Thermistor and Parabolic 0 20 40 Temperature, C 60 Reflector Package TO-5 with Parabolic Reflector LED23 typical spectra at different tem peratures 100 T=14°C Thermoresistor LED chip T=24°C Intensity, a.u. 80 TEC LEAD TOP SIDE VIEW T=53°C 60 40 20 Thermoresistor 0 1800 1900 2000 2100 2200 2300 2400 2500 2600 2700 2800 Wavelength, nm Thermoresistor LED23 - typical current - voltage characteristic LED23 - typical power vs. current characteristic at different temperatures Far field pattern with and without reflector 40 1,4 1 30 1,2 0,9 0,8 0,6 0,5 0,8 0,6 T=14°C 0,4 T=24°C 0,2 T=53°C Current,mA Power, mW 0,7 20 1,0 0,4 10 0,3 0,2 0 0,1 0 -4 -3 -2 -1 -10 -20 0 1 2 LED23 (without reflector) -30 0,0 0 50 100 Current, mA 150 200 -40 Voltage,V LED23-PR (with reflector)