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High speed infrared photodetector/photodiode

 

 

1 .Imported Binsong infrared photodiode

 

2 .Diode type：InGaAs

 

3 .Wavelength response range：800nm~1750nm

 

4 .Maximum response frequency：600MHz

 

5 .Output voltage range：0V-12V（The supply voltage is12VTime）

 

6 .The output impedance inside the detector is1MOhm，If users need to obtain appropriate response speed，The appropriate resistance must be connected in parallel at the output。To maximize the response frequency of the detector，Its output must be connected in parallel50Ohm-100Ohmic resistance（In general, it can be connected in parallel50Ohmic terminal，Bandwidth greater than or equal to300MHzThe oscilloscope itself also has50Ohmic impedance selection）。The smaller the resistance of the output in parallel，The higher the peak power of the incident optical signal is required，Otherwise, the output voltage will be lower，Users need to find a balance between bandwidth and voltage。generally speaking，The detection pulse width is hundreds of nanoseconds、Picosecond or femtosecond laser pulse，The output of the detector needs to be connected in parallel50Ohm-100Ohmic resistance；If detector500usreach500nsLaser pulse，Detector output needs to be connected in parallel1k-10kOhmic resistance；If we detect hundredsms-500usLaser pulse of，Detector output needs parallel connection10k-100kOhmic resistance；If the detection is greater than500msOr continuous laser，No parallel resistance is required at the detector output，But if the output voltage is too high，Or to eliminate the influence of natural light，Can be paralleled properly100kResistance or potentiometer，One can reduce the external noise，Second, it can limit the amplitude of output voltage。

Bandwidth and response speed，The relationship between parallel resistance and voltage，Please refer to the English introduction in the picture above。

 

7 .Effective sensitive diameter：300um

 

8 .Power supply voltage：5V-12V

 

9 .The default is the detection mode of free space light entering the probe；If the user needs，It can be pasted in front of the probeFCflange，For users to use directlyFCFiber head access detector。Please explain in advance when purchasing，Detector shipped by default withoutFCflange