laser and photo diode

I

ikova

Guest
Hi!
Could enyone please tell me which photo diode i have to use ( bpw 43, bpw 34
or sfh 203?) for detecting beam from laser pointer. ( I don't know the
wavelength but it's simple laser I bought in market - about 4$ ).

thanks
 
Not entirely sure of the wavelength that's being
emitted by your pointer's light source, but I'd
venture it's 640nm. Either way, any detector cap-
able of detecting visible light (in this case
"red") should work...

ikova wrote:

Hi!
Could enyone please tell me which photo diode i have to use ( bpw 43, bpw 34
or sfh 203?) for detecting beam from laser pointer. ( I don't know the
wavelength but it's simple laser I bought in market - about 4$ ).

thanks
 
Thanks again.


"LameDuck" wrote:.
Not entirely sure of the wavelength that's being
emitted by your pointer's light source, but I'd
venture it's 640nm. Either way, any detector cap-
able of detecting visible light (in this case
"red") should work...

ikova wrote:

Hi!
Could enyone please tell me which photo diode i have to use ( bpw 43,
bpw 34
or sfh 203?) for detecting beam from laser pointer. ( I don't know the
wavelength but it's simple laser I bought in market - about 4$ ).

thanks
 

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