Mid-Infrared (MIR) Light-Emitting Diode

Transcription

1 Power, µw Current, ma Sensitivity, a.u. Sensitivity, a.u. Mid-Infrared (MIR) Light-Emitting Diode Lms34LEDhp series Device parameters Symbol Value Units Storage temperature Operating temperature Soldering temperature (can be applied for not more than 5 secs) T stg * T opr * *LED design for higher storage/operating temperature is available under request C C T sol +18 C LED parameters Conditions Symbol Value Units Peak emission wavelength I = 15 ma qcw FWHM of the emission band I = 15 ma qcw Quasi-CW Optical Power Pulsed Peak Optical Power QCW mode* Pulse mode** λ p FWHM P qcw P pul µm 25-6 nm 45-8 µw 35-5 µw Maximum operating current QCW mode I max qcw 25 ma Maximum operating current Pulse mode I max pulse 2 ma Forward Voltage I = 2 ma V V *QCW: repetetition rate.5 KHz, pulse duration: 1 ms, duty cycle: 5%, current: 2 ma **Pulse: repetetition rate.5 KHz, pulse duration: 2 µs, duty cycle: 1%, current: 1 A Spectra at different temperatures (qcw) All specifications are for LED operation at 25 C unless otherwise stated Spectra at different currents (qcw) C 8 25 C 6 5 C Wavelength, nm LED Power Characteristics (qcw) mA 1mA 15mA 2mA Wavelength, nm LED Typical Current-Voltage Characteristics (qcw) Current, ma Voltage, mv

2 Relative radiant intensity Relative radiant intensity Mid-Infrared (MIR) Light-Emitting Diode Radiant characteristics (far-field pattern) TO-18 package TO-18 package with a parabolic reflector Related products: Photodiodes - detectors of mid-infrared radiation; LED drivers (D-41, D-51, minidrivers md-1c, md-1p ) - provides LED power supply in a pulse mode;

3 Packages TO-18 with a cap without a glass window TO-18 with a parabolic reflector without a window TO-18 with a parabolic reflector with a glass window TO-5 with a built-in thermocooler and thermoresistor, covered by a cap with a glass window TO-5 with a built-in thermocooler and thermoresistor, covered by a parabolic reflector with a glass window Model Lms MIR LED Lms MIR LED-R Lms MIR LED-RW Lms MIR LED-TEM Lms MIR LED-TEM-R To drive the LED we recommend using: LED basic circuit connection LED with thermoelectric module basic circuit connection Pulse Generator 1 Ohm LED thermocooler I adjust Constant current source We recommend to use Quasi Continuous Wave (qcw) mode with a duty cycle 5% or 25% to obtain maximum average optical power and short Pulse modes to obtain maximum peak power. Hard CW (continius wave) mode is NOT recommended. Quasi Continuous Wave (qcw) mode 2-2 μs Pulse mode Drive current f =.5-16 khz 31-1 μs 31-1 μs max..25 A Drive current f =.5-16 khz 62-2 μs max. 2 A Time Time IMPORTANT CAUTIONS: please check your connection circuit before turning on the LED; please mind the LED polarity: LED anode is marked with a RED dot; please do not connect the LED to the multimeter.

4 Lms34LEDhp

5 Lms34LEDhp-R

6 Lms34LEDhp-RW

7 Lms34LEDhp-TEM

8 Lms34LEDhp-TEM-R