Hi,
Some explanation needed.
I have connected a silicon photodetector to an fiber optic output... which should exhibit a signal of frequency of 160Mhz... The output to the sillicon detector is observed via an oscilloscope.
Whenever I have powered on the detector, the osciloscope will exhibit a 30Mhz signal which is not related at all to the light output. This signal could not be cleared by switching on and off the detector except via changing the osciloscope coupling and turning off the detector
Does this suggest that there is some capacitative effect in my detector circuit? What could be the reason behind such effect?
Thanks
____________
schoolies accommodation
REAL ESTATE MILLIONAIRE NOW
Some explanation needed.
I have connected a silicon photodetector to an fiber optic output... which should exhibit a signal of frequency of 160Mhz... The output to the sillicon detector is observed via an oscilloscope.
Whenever I have powered on the detector, the osciloscope will exhibit a 30Mhz signal which is not related at all to the light output. This signal could not be cleared by switching on and off the detector except via changing the osciloscope coupling and turning off the detector
Does this suggest that there is some capacitative effect in my detector circuit? What could be the reason behind such effect?
Thanks
____________
schoolies accommodation
REAL ESTATE MILLIONAIRE NOW
