W NE OPRi2-3230 TE cooled Integrated Optopair 100 The integrated device consists of two solid state light emitters (light sources) and one photodetector. Response, a.u 90 80 Light Emitters 70 60 Each Light Emitter has built-in narrow band interference filters: one (first emitter) filter is adjusted to absorption line of tested material (base channel), the another (second emitter) one - is far from the absorption band (reference channel). Detector 50 40 30 20 10 l2 l1 0 2,5 3,0 3,5 4,0 4,5 5,0 Wavelength, mm Spectral Responses of Photodetector and Light Emitters with narrow-band filters Light Emitters 1, 2 Thermoelectric Cooler Light Emitters The light emitters and the detector are mounted at the same plane at cold side of miniature thermoelectric (TE) cooler and integrated in the single housing. TE cooler is used for cool down and precise temperature stabilization of the detector and emitters. Detector l1 Narrow band filters l1, l2 l1 Sapphire Window Detector is the broad-band PbSe photoresistor. Detector The semiconductor Light Emitters are optimized for operation of the Photodetector. Development and Production in cooperation with partnership company ICO Ltd Optical and Electrical Characteristics Detector Sensitive Element size Spectral Range Wavelength max lmax Time Constant, t Detectivity, D* Ligh Emitters mm mm mm 1.5x5.5 1…3.8 msec <100 3.2 mm mm 2x2 1.0 Angle of view deg. 70 mm mm 3.23 Channels Wavelength l1 Measuring Channel, l1 smxHz Reference Channel, l2 smxHz 1/2 1/2 xW -1 xW -1 8 Wavelength l2 >1.2x10 8 >1.2x10 Band Width Dl0.5 Sensitivity, SU Time Constant, t At Measuring Channel, l1 V/W >200 At Reference Channel, l2 V/W kOhm >200 6…30 Dark Resistance Emitting area size Distance between elements 3.0 mm 0.08 msec <2 mW mW 50 500 Output Power at l1 and l2 CW(1) Pulsed(2) 1) Iop=100 mA, U=2 V 2) Iop= 2 A, U=2 V, Q=200, tp= 100 µ s 3) All parameters are referred to 263 K RMT Ltd. i1 53 Leninskij prosp. Moscow 119991 Russia t phone: 095-132-6817t fax: 095-132-5870 t e-mail: [email protected] t http://www.rmtltd.ru OPRi2-3230 TE cooled Integrated Optopair Dimensional Outlines (All dimensions are in mm) D17 TE Cooled Optopair TO8 housing Emitters-Detector Plan (top view) 10.16 2.54 Æ 15.4 12 45o 1 M3´ 0.6 Window Light Emitters 2 Æ 9.5 3 Detector 3.1 Æ 15.4 NTC Thermistor 3.4 6.3 Seating plane TE Cooler Æ 0.5 All dimensions are in mm Pin Top View Detector Not connected Detector TE cooler, cathode Shield TE cooler, anode LED 1, cathode LED 1,2 , anode LED 2, cathode Thermistor Ground Thermistor 12 11 10 t° 1 R 2 M 3 4 5 9 8 7 + 1 2 3 4 5 6 7 8 9 10 11 12 Function 6 Absolute Maximum Ratings Detector Bias Voltage V 5 Light Emitter Both Direct Current, Pulsed Current, Typical TE Cooler Power max max near max. Cooling mA A Current, A Voltage, V 300 4 1,3 0,4* 2,2 4* Thermosensor 2.2 kOhm & -3.4%/deg * - option for portable applications Information furnished by RMT Ltd is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omission. Specifications are subject to change without notice. i2 RMT Ltd. 53 Leninskij prosp. Moscow 119991 Russia t phone: 095-132-6817t fax: 095-132-5870 t e-mail: [email protected] t http://www.rmtltd.ru