HOHENHEIDE OÜ

Six-element detector 

 HH06-S1337 dimensions

outer dimension, mm

principle beam journey

principle beam journey

6-element transmission photodetector

HH06-S1337

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So-called transmission trap detector does not reflect back light: six photodiodes are mounted in such a way that non-absorbed and reflected beam from one photodiode is directed to the consequent one. Transmitted beam is weakened by three orders of magnitude, which can be easily measured. Owing to compact design the responsivity and the transmittance of the detector are polarization-independent. Typically, 6-element photodetector is applied in measurements of optical power where polarization-independent responsivity and transmitted beam are aimed at.

Parameter

Value(s)

Notes

Number of elements

6

Type S1337-1010BR windowless photodiodes from Hamamatsu

Active area [mm]2

50

 

Spectral range [nm]

360-950

 

Spectral responsivity [mA/mW]

0,35-0,7

Depends on wavelength, almost linear up to 950 nm

Quantum efficiency

>0,98

Incl transmittance

Calibration relative uncertainty [%]

0,5

Responsivity calibration

Maximum optical power density [mW/cm2]

5

 

Full field of view [º]*

13

 

Optical path length in the device [mm]*

84

Distance from the first reflection to the last reflection - 66 mm 

Maximum declination between incoming and transmitted beams [% ]

 0,5

 

Maximum transimttance [% of incoming beam]**

1,4

@360 nm

Minimum transimttance [% of incoming beam]**

0,06

@950 nm

Spatial uniformity of the responsivity [%]

±0,1

Scanned at 632,8 nm

Spatial uniformity of the transmittance [%]

±1

Scanned at 632,8 nm

Dimensions (approx)*:

Diameter [mm]

65

Length [mm]

52

Weight [kg]

0,3

*The given values are illustrative and may depend on the customer specified features of the photodetector

**The values are given for detector modeled as a photodiode with antireflection coating effective thickness 30 nm