Tell me narrow-band, fast photodiodes at 650 and 532 nm?

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Hi experts, I have long decided to make a data transmitter using a conventional 650 nm laser (red):

I also have a 532 nm laser (green):

Which of them is less exposed to interference has not been tested, I think the red spreads further, although it is more vulnerable to interference.
I checked domestic photodiodes using a scientific poke method, it’s good in area on the FD-17k, but it doesn’t fit the spectrum:

FD-263 also perceives infrared more than red or green light:

KDF-101 is better but small, too broadband and the peak is not the same:

This photodiode is required:
1) High speed data reception;
2) A narrow range of reception (650 or 532 nm);
3) High sensitivity;
4) Not a small area of the receiving surface.

Are there such "highly specialized" photodiodes (separately for 650 and 532 nm), as they are called?

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July 17, 2018 23:45 Author 0

Reply To quote A complaint

No, well, I have lasers, I’m looking for specific photodiodes for them at 650 or 532 nm, they offer me FD-256. The idea is that it - the photodiode (or phototransistor) is narrow-band (so that external light does not interfere with the maximum), and a high reception speed is also desirable

July 17, 2018 13:23 0

This one is already with a lens. Body marking

July 17, 2018 11:24 Author 0

Thanks for the tips of FD256 this seems to be this photodiode:

It is small, although you can focus or put a few. I read that GaInP converts in the wavelength range from 300 to 670 nm, GaAs from 500 to 890 nm, and Si from 650 to 1180 nm. They also thought about light filters and on solar panels stand:

And if you put the usual small silicon socket, or is the speed lower too?

July 17, 2018 09:36 0

photodiode or laser

July 17, 2018 09:32 0

Conventional silicon photodiodes have a max spectrum. ~ 0.8 ... 0.9 μm. And they are quite broadband. Red color will be at the level of 0.6 from max. And they are mostly slow ~ 5 ... 10 μs. Separate fast are FD11K and FD256
For FOCL, PIN diodes and avalanche are used. This is specialized (small crystal). And for example, in the audio card (external USB) there is already a receiver and a transmitter (FOCL).
To cut off the excess spectrum, you can put a Red filter in front of the photo detector. He made a security alarm for a summer resident on a laser pointer (red). There, at a distance of> 20m, beam jitter and fog and other external precipitations are already affecting.

Tell me narrow-band, fast photodiodes at 650 and 532 nm?

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