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Appendix D. Performance Test
Test III. CW-Stability Short Term
b Ensure that the instruments have warmed up and that the
laser has settled.
2 Zero the HP 8153A:
a Mount the protection cap on the head in order to keep the
light out.
b Press M
to change to Measure Mode.
ENU
c
Press Z
and wait while zeroing.
ERO
d Unmount the protection cap and connect the equipment as
shown in Figure D-3.
3 Set up the HP 8153A:
a Select Auto Range: Press A
b Select averaging time100ms:
Press P
until the averaging time is displayed.
ARAM
Use the modify keys to change to 100ms.
c
Select display in dB:
Press
B
D
d Set wavelength to the actual wavelength:
Press P
until the wavelength is displayed.
ARAM
Use modify keys to edit the wavelength.
4 Set power meter to datalogging:
a Select STABILITY application:
Press M
, press R
ENU
b Set the total measurement time to 00:15:00 for short term
stability test of 15 minutes:
Press E
and set T_TOTAL to 00:15:00 using the modify
DIT
cursor keys.
c
Set AUTODUMP OFF:
Press N
and use modify cursor keys to set autodump to
EXT
off.
201
.
UTO
.
ECORD
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