HgCdTe photodiode sensors
Model KMPV11-1-J1
HgCdTe photodiode with amplifier
Description
Model KMPV11-1-J1 series is an integrated high frequency infrared detector/amplifier sensor with cutoff wavelength greater than 11um. The HgCdTe photovoltaic detector is coupled to an internal DC to 20 MHz bandwidth low noise transimpedance amplifier. The output can be ordered either as DC or AC. Detector size is 1mm. The broadband D* is greater than 2 x 1010 Jones. The side looking LN2 pour filled dewar has a 12 hour hold time.
Window options include ZnSe antireflection coated 2um to 13um[standard], or for 10.6um; ZnSe wedge disk windows, uncoated; or antireflection coated Germanium 2.1um to 14um.
Cold filters are optional but can be added easily. These filters can be narrow band, band pass, long pass, or low pass. Sometimes a combination of long pass and the detectors natural cutoff can define the band pass. The cold stop or field of view (FOV) is 60 degrees[standard].
For 20MHz bandwidth operation, the 1mm is the maximum size. Smaller sizes can be used for wider bandwidth applications. The bandwidth is determined the the RC time constant of the detector capacitance, which is area dependent, and the detector series resistance. The smallest size is to 0.05mm x 0.05mm.
Cutoff wavelength of 11um is standard, but other wavlengths are available -- 8um, 4.5um, 12um.
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Applications
The KMPV11 is designed to be used in systems and instruments which require a very sensitive, linear, high speed detector and amplifier:
- Laser Radar
- Range Finders
- IR DIAL
- FTIR
- TRS
- Chemical detection -- CO2 CH4 ...
Performance Specifications
MODEL KMPV11 SERIES
| Size(mmxmm) | 1.0, 0.5,0.25, 0.2,0.15,0.1.0.05 | |
Quantum Efficiency | >50% | |
Wavelength cutoff | >11.5 um | |
Bandwidth [1mm] | DC to 20MHz
100Hz to 20MHz | |
FOV | 60 degrees full angle | |
D*(peak,50kHz,60,1) | 4x1010 Jones nom. | |
Responsivity
(output) | > 40,000 V/Watt | |
Power | +12V,-12V or
+15V,-15V
55mA | |
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