Mid-Infrared (MIR) Light-Emitting Diode

Transcription

1 Intensity, a.u. Power, µw Intensity, a.u. Intensity, a.u. Mid-Infrared (MIR) Light-Emitting Diode μm Lms7LED series Device parameters Symbol Value Units Operating/ storage temperature * C Soldering temperature (can be applied for not more than secs) *Temperature range may vary for different packaging types. T stg T sol +8 C All parameters refer to LEDs in TO8 package with a cavity and operation at ambient temperature C unless otherwise stated. LED parameters Conditions Symbol Value Units Peak emission wavelength FWHM of the emission band Average optical power (minimal / typical) Peak optical power (minimal / typical) Maximum operating current Forward voltage qcw mode 3 I = ma qcw mode 3 I = ma qcw mode 3 I = ma Pulse mode 4 I = A qcw mode 3 Pulse mode 4 qcw mode 3 I = ma λ p µm FWHM 3 - nm P qcw P pul min / typ µw min / typ 8 µw I max qcw ma I max pulse A V. -. V Typical spectrum (qcw 3 ) Spectra at different temperatures (qcw 3, ma) original with atmospheric impact Wavelength, nm C C C Wavelength, nm Typical spectra at different currents (qcw 3 ) Typical optical power characteristic (qcw 3 ) ma ma ma ma Wavelength, nm Current, ma Parameter tested for each device. Parameter tested for representative sampling. 3 qcw mode: repetition rate:. KHz, pulse duration: ms, duty cycle: %. 4 Pulse mode: repetition rate:. KHz, pulse duration: µs, duty cycle: %. Rev.6, A, Kurchatova str., N, St-Petersburg, 943, Russia; info@lmsnt.com; page (8)

2 Relative radiant intensity Relative radiant intensity Current, ma Mid-Infrared (MIR) Light-Emitting Diode μm Typical current-voltage characteristic (qcw 3 ) Voltage, mv 3 qcw mode: repetition rate:. KHz, pulse duration: ms, duty cycle: %. Packages TO-8 with a cap without a glass window TO-8 with a parabolic reflector without a glass window TO-8 with a parabolic reflector with a glass window TO- with a built-in thermocooler and thermoresistor, covered by a cap with a glass window TO- with a built-in thermocooler and thermoresistor, covered by a parabolic reflector with a glass window Model Lms7LED Lms7LED-R Lms7LED-RW Lms7LED-TEM Lms7LED-TEM-R Radiant characteristics (far-field pattern) TO-8 package with a cap TO-8 package with a parabolic reflector Related products: Photodiodes Lms36PD series - detectors of mid-infrared radiation; LED drivers (D-4i, D-i, minidrivers md-c, md-p ) - provide LED power supply in pulse modes. Rev.6, A, Kurchatova str., N, St-Petersburg, 943, Russia; info@lmsnt.com; page (8)

3 μm To drive the LED we recommend the following basic circuit connections: LED basic circuit connection LED with thermoelectric module basic circuit connection Pulse generator LED Ohm thermocooler I adjust Constant current source We recommend using Quasi Continuous Wave (qcw) mode with a duty cycle % or % 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 Pulse mode - μs Drive current f =. - 6 khz 3- μs 3- μs max.. A Drive current f =. - 6 khz 6 - μs max. A Time Time IMPORTANT CAUTIONS: please check your connection circuit before turning on the LED; please mind the LED polarity: anode is marked with a RED dot; REVERSE voltage applying is FORBIDDEN; please do not connect the LED to the multimeter; please control the CURRENT applied to the LED in order NOT to EXCEED the maximum allowable values. Rev.6, A, Kurchatova str., N, St-Petersburg, 943, Russia; info@lmsnt.com; page 3 (8)

4 μm Lms7LED 4,8±, 3,±, 4,±, 3,±,,6±,,,3 pins,4 - LED cathode - LED anode 4,±,,6±, Rev.6, A, Kurchatova str., N, St-Petersburg, 943, Russia; info@lmsnt.com; page 4 (8)

5 μm Lms7LED-R 9,±, 8,4±, 3,±,,6±,,3,±, pins,4, - LED cathode - LED anode 4,±,,6±, Rev.6, A, Kurchatova str., N, St-Petersburg, 943, Russia; info@lmsnt.com; page (8)

6 μm Lms7LED-RW 9,±, 8,4±, 3,±,,6±,,3,±, pins,4, - LED cathode - LED anode 4,±,,6±, Rev.6, A, Kurchatova str., N, St-Petersburg, 943, Russia; info@lmsnt.com; page 6 (8)

7 μm Lms7LED-TEM 9,±, 8,3±, ±, on Si substrate,4,,6±, 6,6±, 3, 6 pins,4 - TEC + - LED anode 3 - LED cathode 4 - thermistor - thermistor 6 - TEC ,98,8 3 Rev.6, A, Kurchatova str., N, St-Petersburg, 943, Russia; info@lmsnt.com; page 7 (8)

8 μm Lms7LED-TEM-R ±, on Si substrate,4 7,±, 6 pins,4 3, - TEC + - LED anode 3 - LED cathode 4 - thermistor - thermistor 6 - TEC ,98,8 3 Rev.6, A, Kurchatova str., N, St-Petersburg, 943, Russia; info@lmsnt.com; page 8 (8)