I am trying to come up with a simple circuit/method that can tell me the intensity of a 950nm LED
source after the light travels through a glass fiber bundle. I was looking for a photo resistor (I
figured I coul djust measure the resistance) but can't find one that operates at 950nm.
Basically I want to measure the efficiency of my glass fiber and optical coupling mechansim. I
need to compare the output of the bare LED with the output of the fiber to see how much light
is lost going through the fiber.
I thought of buying an LED testing instrument, but can't get approval for that. I need something
cheap that I can build myself. Does anyone have any ideas?
source after the light travels through a glass fiber bundle. I was looking for a photo resistor (I
figured I coul djust measure the resistance) but can't find one that operates at 950nm.
Basically I want to measure the efficiency of my glass fiber and optical coupling mechansim. I
need to compare the output of the bare LED with the output of the fiber to see how much light
is lost going through the fiber.
I thought of buying an LED testing instrument, but can't get approval for that. I need something
cheap that I can build myself. Does anyone have any ideas?