Greetings to all interested - I have been trying to build a system where I can send a ccd camera acquired
real-time image via a modulated laser diode beam. I've successfully built the transmitter part - which intensity
modulates a red laser diode. However, I'm having trouble obtaining adequate frequency response at the
receiver end. I've chosen a new approach - using a red LED as the beam detector (setup reverse biased @ 5V),
driving a FET-NPN BJT cascode amp. However, I'm having trouble with cascode amp biasing. I am mainly
self-taught, so my knowledge is spotty, and I have very little experience using software circuit design tools.
I welcome any help and/or pointers from anyone interested in such a project.
Thanks in advance to all contributions!
stan
real-time image via a modulated laser diode beam. I've successfully built the transmitter part - which intensity
modulates a red laser diode. However, I'm having trouble obtaining adequate frequency response at the
receiver end. I've chosen a new approach - using a red LED as the beam detector (setup reverse biased @ 5V),
driving a FET-NPN BJT cascode amp. However, I'm having trouble with cascode amp biasing. I am mainly
self-taught, so my knowledge is spotty, and I have very little experience using software circuit design tools.
I welcome any help and/or pointers from anyone interested in such a project.
Thanks in advance to all contributions!
stan