Cheap (CW) lasers such as CD and short distance 850 and 1300nm
telecommunication laser have an optical spectrum
of a few nm width. This optical spectrum width is filed width multiple optical
frequencies.
Distributed feedback-lasers generate a single optical frequency. They much more
expensiv
the frequency modulated signal
at a constant phase of the modulation and generate notches at the
FM modulation side-bands of the ADEV samples.
Result: the ADEV samples don't contain the FM modulation.
Henk Peek
___
time-nuts mailing list -- time-
Jared,
I think an -20 V rail short to ground has first blowup A15Q10.
Then the -20V converter was light loaded and the output DC voltage goes up and
blows also the zeners.
The most easy way to protect and repair: replace A15Q10 with a LM337 with 2
resistors to adjust the output to -20V.
Remove
