14 • General Operation
NEW FOCUS, Inc.
Using the Front-Panel Controls
The Vidia-Discrete has two control options, local and remote. In local
mode, the front panel provides control of the laser system. In remote
mode, you control the laser over the computer interface (IEEE-488 or
RS-232). Whenever the Vidia-Discrete receives a command over the
computer interface, it restricts most of the front-panel controls (the
Laser Power
and keyswitch control are always enabled). Press the
Local
button on the front panel to restore front-panel control. For
information on using computer control, see page 23.
The controls on the front panel (Figure 4) allow you to read and set the
laser power, wavelength, start and stop wavelengths for scans, and
computer-interface parameters.
Figure 4:
Controller
front panel
1. AC Power Keyswitch:
Controls AC power to the entire laser sys-
tem, including the temperature-control circuit. Power is not sup-
plied to the laser diode until the
Laser Power
button is activated.
2. Power Indicator:
This indicator is lit when the system power is
on. To check if power is being supplied to the laser diode, check the
indicator light in the
Laser Power
button.
3. Local Button:
Returns the controller to local (front-panel) control
when the driver is in remote (computer-control) mode.
4. Laser Power Button:
Turns on and off current to the laser diode.
When the laser power is on, this button will remain lit.
Addressed
Remote
Laser Power
AC Power
0
1
Local
Wavelength
Adjust
Track
Wavelength (nm)
Current (mA)
Laser Output
FC/APC
Power
Adjust
Power Setpoint (dBm)
64X7
Made in USA
AVOID EXPOSURE
INVISIBLE LASER RADIATION
EMITTED FROM
THIS APERTURE
INVISIBLE LASER RADIATION AVOID
DIRECT EXPOSURE TO BEAM
Power output
Wavelength
CLASS IIIB LASER PRODUCT
Start
λ
Stop
1
13
12
11
10
9
8
7
6
3
5
4
2
14
RS 232
GPIB
Step
Hi Res
Tunable Laser Source
V
IDIA™
-D
ISCRETE
64X7 rev E.fm Page 14 Tuesday, April 3, 2001 4:16 PM
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