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Topic: Fiber optics with IR (Read 390 times) previous topic - next topic

Anderswikstrom

I´m thinking of sending a signal with a IR-diode through an optical fiber to a photodetector using the arduino. Does anybody have tips for what kind of IR-diode,fiber and photodetector to use??

Chagrin

If you're looking at the fiber cables that are used with computers you're going to have a bit of difficulty. The fibers are very thin -- very difficult to stuff light through and then requires a lot of fiddling dealing with that small signal. Look for fiber optics that are used for lighting purposes, but then you're going to find that those optics are pretty expensive.

If you're just messing around I'd suggest trying pen lasers and phototransistors instead. You don't want to use photoresistors (CdS cells) because they have a very slow response time compared to a phototransistor or photodiode.


fungus


I´m thinking of sending a signal with a IR-diode through an optical fiber to a photodetector using the arduino. Does anybody have tips for what kind of IR-diode,fiber and photodetector to use??


What for, exactly? I only ask because there might be a better way...

No, I don't answer questions sent in private messages (but I do accept thank-you notes...)

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