Tunable Lasers How to Set the Wavelength
122 Agilent 8163A/B, 8164A/B, and 8166A/B User’s Guide, Fourth Edition
1 Move to power parameter, [P], and press [Pwr unit]. You should see
the power unit menu.
2 Move to <dBm> and press Enter.
3 Press Enter to edit the power value.
4 Enter −10.000 and press Enter.
How to Set the BNC Output Line Mode as an Analog
Output
5 Press [Menu], move to <BNC Output> and press [OK].
6 Move to <V~P>, to choose an analog output signal, press Enter, and
press [Close].
Attenuator If you want to you use the analog output signal and your Tunable
Laser module has an attenuator installed, it is advisable to use
<Manual Att.> Mode and choose a constant attenuation value.
How to Set the Wavelength
There are three ways to set the wavelength of the Tunable Laser.
• You can set the wavelength (λ) directly,
• You can set the wavelength from a base wavelength and an offset in
the frequency domain, or
• You can set a wavelength range for the instrument to “sweep”.
Wavelength Range
Every Tunable Laser module has a specified wavelength range. This
range is available for all Tunable Laser modules. See Appendix C of
the Agilent 81640B/42B/72B/80B/82B & 81480B/82B Tunable Laser
User’s Guide to find your module’s specified range.
Every Tunable Laser module has a permitted wavelength range. This
range is greater than the specified range. The permitted wavelength
range varies for each Tunable Laser module. You can set the
wavelength to any value within the permitted wavelength range.
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