
B-70315EN/02 8.LASER OPTICAL SYSTEM
- 247 -
8.3.3 Alignment Procedure at Mirror Cleaning Time
When cleaning or replacing mirrors of a laser oscillator already
adjusted using the maximum power method, use the alignment
procedure described in this subsection. All folding mirrors need not be
cleaned each time.
8.3.3.1 Preparation
(1) Record the adjustment screw readings of the output coupler
(O.C.), rear mirror (R.M.), and folding mirrors (F.M.).
(2) Collect a burn pattern. This is used for checking mirror dirt. If
the mode is good, end the adjustment.
Near (3m) :
Cold mode or Hot mode (Internal discharge for three minutes)
Far :
Cold mode or Hot mode (Internal discharge for three minutes)
8.3.3.2 Adjustment method
(1) For C1000-E
(a) Clean the O.C. and R.M. mirrors.
(b) Obtain a maximum power based on O.C. by using R.M. as
the reference.
(c) Clean the FM1, FM2, and FM3 mirrors.
(d) Obtain a maximum power based on FM3.
(2) For C2000-E
(a) Clean the O.C. and R.M. mirrors.
(b) Obtain a maximum power based on O.C. by using R.M. as
the reference.
(c) Clean the FM1, FM2, and FM3 mirrors.
(d) Obtain a maximum power based on FM1.