VIGO SYSTEM S.A.

Products

PV



3-8 μm IR PHOTOVOLTAIC DETECTORS

Description

The PV-λopt photodetectors series (λopt - optimal wavelength in micrometers) feature IR photovoltaic detector.

This series is easy to use, no cooling or heatsink needed. The devices are optimized for the maximum performance at λopt. Cut-on wavelength can be optimized upon request. Reverse bias may significantly increase speed of response and dynamic range. It results also in improved performance at high frequencies, but 1/f noise that appears in biased devices may reduce performance at low frequencies. Highest performance and stability are achieved by application of variable gap HgCdTe semiconductor, optimized doping and sophisticated surface processing.

Standard detectors are available in TO39 or BNC packages without windows. Various windows, other packages and connectors are available upon request.

 

  • Ambient temperature operation
  • No bias required
  • Short time constant
  • No flicker noise
  • Operation from DC to VHF
  • Perfect match to fast electronics
  • Wide dynamic range
  • Low cost
  • Custom design upon request
Parameter
Symbol
Unit
PV-3
PV-3.4
PV-4
PV-5
PV-6
PV-8
Optimal Wavelength
λopt
µm
3
3.4
4
5
6
8
Detectivity*):
@ λpeak
@ λopt
D*
cm⋅Hz1/2⋅W-1
 
≥8.0×109
≥6.5×109
 
≥7.0×109
≥5.0×109
 
≥5.0×109
≥3.0×109
 
≥2.0×109
≥1.0×109
 
≥1.0×109
≥5.0×108
 
≥8.0×107
≥4.0×107
Current Responsivity @ λopt
Ri
A⋅W-1
≥0.5
≥0.8
≥1
≥1
≥1
≥0.3
Time Constant
τ
ns
≤350
≤260
≤150
≤120
≤80
≤4
Time Constant**) τ ns  ≤3  ≤2  ≤1  ≤0.7  ≤0.7  ≤0.7
Resistance - Optical Area Product
R⋅A
Ω⋅cm2
≥1
≥0.5
≥0.1
≥0.01
≥0.002
≥0.0001
Operating Temperature
T
K
~300
Acceptance Angle, F/#
Φ, -
deg, -
>90, 0.71

*) Data Sheet states minimum guaranteed D* values for each detector model. Higher performance detectors can be provided upon request.
**) Response which may be achieved at reverse bias (selected detectors upon request). Devices with faster response are avilable upon special request.

Type
Optical Area*) [mm×mm]
0.025×0.025
0.05×0.05
0.1×0.1
0.2×0.2
0.25×0.25
0.5×0.5
1×1
2×2
3×3
4×4
PV-3
O
X
X
O
 
O
O
 
 
 
PV-3.4
O
X
X
O
 
O
O
 
 
 
PV-4
O
X
X
O
 
O
O
 
 
 
PV-5
O
X
X
O
 
O
O
 
 
 
PV-6
O
X
   X**)
O
 
O
 
 
 
 
PV-8
X
   X**)
P
 
 
 
 
 
 
 

*) Circular shaped Optical Area (Diameter [mm]) can be provided upon request.
**)
Custom detectors may require reverse bias in order to increase Dynamic Resistance to improve frequency response.

X - standard detectors
P - default with reverse bias
O - detectors available upon request, parameters may vary from these in Data Sheet