Keysight Technologies N778 C Series Programming Manual page 70

5 Polarization Commands
Command: :POLarimeter:SWEep:RATe
Syntax: :POLarimeter:SWEep:RATe<wsp>[nm/s|pm/s]
Description: This command sets the sweep rate in m/s. When performing a swept measurement, very often, the wavelength is changed
over time. This parameter allows you to inform the instrument about the speed at which the wavelength of the laser source is
changing. The start wavelength is given by the property Wavelength. This works for disabled trigger input only. If you want to
sweep with trigger input, please set sweep step: :POLarimeter:SWEep:STEP.
Parameters: Float sweep rate in nm/s. If you do not pass unit, assumption is m/s.
Example: :pol:swe:rat 40nm/s
Affects N7781C / N7786C / N7788C
Command: :POLarimeter:SWEep:RATe?
Syntax: :POLarimeter:SWEep:RATe?
Description: This command returns the sweep rate in m/s.
Parameters: None
Response: Float sweep rate
Example: :pol:swe:rat? → +4.00000000E-08
Affects N7781C / N7786C / N7788C
Command: :POLarimeter:SWEep:SRATe
Syntax: :POLarimeter:SWEep:SRATe<wsp><value>[Hz|kHz|MHz]|MIN|MAX|DEF[,<value>S|MS|US|MIN|MAX|DEF]
Description: This command sets the sampling rate. You can pass just the sampling rate (or MIN, MAX, DEF) or sampling rate and
averaging time (or MIN, MAX, DEF).
Sampling periode (1/sampling rate) have to be larger or equal averaging time.
Parameters: Sampling rate in Hz or MIN, MAX, DEF
Averaging time in s or MIN, MAX, DEF(optional)
Example: :pol:swe:srat 0.5MHz,1us
Affects N7781C / N7786C / N7788C
70 Keysight N778xC Series Polarization Instruments Programming Guide