18 • General Operation
NEW FOCUS, Inc.
Turning on the Power
1. Make sure the laser aperture is blocked or attached to an optical
fiber that is connected to an appropriate receptacle. Use only
FC/APC-connectorized fiber.
2. Before turning on the system for the first time, check that the AC
line voltage indicator on the back of the controller matches the
voltage you are using (see page 51).
3. Turn the power keyswitch on the front panel clockwise (to the “
1
”
position). The display will show the laser model number and
software revision number.
The keyswitch turns on AC power for the entire laser system,
including the temperature circuit for the laser diode. It does not
turn on the power to the laser diode.
4. Wait at least 45 minutes after turning on the keyswitch to allow the
system to warm up.
5. Press the
Laser Power
button on the controller front panel to allow
current to flow to the diode. The button will flash during the five -
second safety delay before the current is activated. The button will
remain lit while current is flowing to the laser diode.
6.
Turn the
Power Adjust
knob to control the output power. Turn-
ing the knob clockwise increases power: counter-clockwise
decreases power. If the Power Display begins to flash, the power
is already at maximum for the selected wavelength. See page 65
for power specifications.
Before turning off the system, you should first turn off power to the
laser diode by pressing the
Laser Power
button.
You can avoid the 45-minute warm-up period by leaving the system power
(keyswitch) on when you are not using the laser.
Note:
Note:
64X7 rev E.fm Page 18 Tuesday, April 3, 2001 4:16 PM
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