HP 8163A - How to Set the Base Wavelength; How to Change the Frequency Offset; How to Perform a Wavelength Sweep; What Is a Wavelength Sweep

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Tunable Laser Sources
How to Perform a Wavelength Sweep
6 Enter 1570 and press ENTER.
NOTE Note how the frequency offset, [∆f], changes as you change the value of
[λ].
How to Set the Base Wavelength
NOTE You cannot set <λ0>, the base wavelength directly.
7 Press [λ−>λ0] to set <λ0> to 1570 nm. <λ0> represents the base
wavelength, λ
0
, in the equation above.
NOTE Note how the frequency offset, [∆f], changes to zero when you press
[λ−>λ0].
How to Change the Frequency Offset
8 Move to [∆f] and press ENTER. [∆f] represents the frequency
offset, df, in the equation above.
9 Enter 1.000 and press ENTER. The frequency offset, [∆f], changes
to 1.000 THz.
NOTE Note how the output wavelength, [λ], changes as you change the value
of [∆f].
5.4 How to Perform a Wavelength Sweep
What is a Wavelength Sweep ?
A wavelength sweep is performed when the instrument changes the
optical wavelength of the optical output in small steps. You can use
a wavelength sweep to measure the wavelength-dependent loss of
an optical component.