A way to measure OWLS...and verify the constancy of the one way speed of light

We build an instrument that consists of the following:
It has a master oscillator that is tuned to 300 megahertz and has an
accuracy of +- one pulse per second. It has two counters that are
capable of accurately counting the output of the master oscillator to
an accuracy of +- one pulse per second. It has one pulse per second
trigger circuit that generates a trigger in the first counter and
triggers a laser with the same pulse. The first counter compares it's
count to a preset value and when they are the same, it generates a
signal to the second counter that will let it begin counting pulses
from the master oscillator. The output of the laser is connected to a
length of fiber optic cable. There is a 'receiving' lens on the
device that such that when a laser signal is received it generates a
pulse that will stop the count on the second counter. The second
counter has a display that will enable us to read the count.

We calibrate the device by turning it on, connecting the 'free' end of
the fiber optic cable to the receiving lens and adjusting the preset
count in the first counter such that the count on the second counter
displays zero count. This delay exactly accounts for the transmission
time (the time it takes for the laser signal to travel the length of
the fiber optic cable) and trigger the second counter to stop
counting.

Theory of operation:
When running, the first oscillator will delay the firing of the second
counter by the length of time the laser takes to travel the length of
cable. Upon separating the 'free' end of the cable from the device
but still aiming the output of the cable at the receiving lens, we now
get a count on the display of the second counter that is reflective of
the number of pulses on the master oscillator that it took for the
laser to travel from the 'free' end of the fiber optic cable to the
receiving lens.

This device could be used for two purposes:
1. If we had an accurate enough distance measuring device, and we
performed this experiment in an evacuated space, and we sufficiently
controlled the temperature of the test equipment and environment, we
could 'accurately' (within the range of accuracy of all equipment
involved) measure the one way speed of light.
2. If we added an accurate time keeping device, encased the
device in an evacuated pipe that was submerged in an underground pool,
and fed the counts and time and control measurements (temperature and
vibration monitors) to a database, we could then verify, or not, the
constancy of the one way speed of light.


"The lack of reason is overcome by the passion of belief"
< cj@xxxxxxxxxx >
.