Keysight N777 C Series Programming Manual page 64

4 Measurement Operations & Settings
Command: :SOURce0:AM:SOURce?
Syntax: :SOURce0:AM:SOURce?
Description: Returns the type or source of the modulation of the laser output.
Parameters: None
Response: +1: coherence control
+5: wavelength locking
Example: :sour0:am:sour? -> +1
Affects: N7778C and N7779C
Command: :SOURce0:AM:SOURce
Syntax: :SOURce0:AM:SOURce<wsp> |COHCtrl|WVLLocking|1|5
Description: Selects the type or source of the modulation of the laser output.
Parameters: COHCtrl or 1: coherence control
WVLLocking or 5: wavelength locking
Response: None
Example: :sour0:am:sour COHC
Affects: Coherence control is only available with N7778C and N7779C
Wavelength locking is only available with N7776C
Command: :SOURce0:AM:STATe
Syntax: :SOURce0:AM:STATe<wsp> OFF|ON|0|1
Description: Enables and disables amplitude modulation of the laser output.
Parameters: A boolean value:
Response: None
Example: :sour0:am:stat 0
Affects: All N777xC laser sources
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OFF or 0: amplitude modulation disabled (default)
ON or 1: amplitude modulation enabled.
Keysight N777xC Series Tunable Laser Family Programming Guide