22
Chapter 4. Troubleshooting
The sequence is as follows:
1.
Ensure the
DLC
is off or on standby.
2.
Take
note
of
the
filter
angle
by
marking
on
the
laser
barrel
the
alignment
of
the
filter
assembly
notch
relative
to
the
laser
barrel
notch. Take a photo from above, so that you can restore the original
filter if needed.
3.
Unscrew the central socket head
cap screw of the filter assembly
until it protrudes from the spindle but is still attached (see fig. 4.2)).
Figure 4.2:
Removing the intracavity filter assembly.
4.
Undo the wavelength locking screw a few turns, and undo the spring
plunger
and
wavelength
adjust
screws
until
they
are
clear
of
the
bearing below the brass filter adjust clamp.
5.
Rotate the filter such that the filter alignment mark (the mark on the
aluminium spindle, not the mark on the brass clamp) is aligned with
the laser barrel notch.
6.
Gently prise the filter assembly from the laser barrel by gripping the
protruding screw. If necessary, use pliers with protective padding on
the laser barrel as a fulcrum.
Summary of Contents for CEF
Page 1: ...External Cavity Diode Laser CEL CEX and CEF Cateye Revision 1 21 ...
Page 4: ...ii ...
Page 18: ...4 Chapter 1 Introduction ...
Page 22: ...8 Chapter 2 First light ...
Page 30: ...16 Chapter 3 Operation and Optimisation ...
Page 42: ...28 Chapter 4 Troubleshooting ...
Page 48: ...34 Appendix A Specifications ...
Page 56: ...42 Appendix B Laser head board ...
Page 59: ......
