OPRi-3439

W
NE
OPRi2-3439 TE cooled Integrated Optopair
100
Response, a.u
90
80
70
The integrated device consists of two solid
state light emitters (light sources) and one
photodetector.
Detector
Light Emitters
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).
50
40
30
20
10
l2
0
2,5
3,0
3,5
l1
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 fine
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
2...4.5
msec
<100
4.0
mm
mm
2x2
1.0
Angle of view
deg
70
mm
mm
3.4
mm
0.25
msec
<2
mW
mW
50
500
Channels
Wavelength l1
Measuring Channel, l1 smxHz
Reference Channel, l2 smxHz
1/2
xW
-1
1/2
xW
-1
8
Wavelength l2
>3.5x10
>3.5x108 Band Width Dl0.5
Sensitivity, SU
Time Constant, t
At Measuring Channel, l1
V/W
>300
At Reference Channel, l2
V/W
kOhm
>300
6…30
Dark Resistance
Emitting area size
Distance between elements
3.9
Output Power at l1 and l2
CW(1)
(2)
Pulsed
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.
33
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
OPRi2-3439 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.
32
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