Agilent Technologies Agilent 86120C manual CORRectionDEVice, Constant Description NARRow, BROad

Programming Commands

SENSe Subsystem

CORRection:DEVice

Selects the wavelength measurement algorithm.

Syntax	:SENSe:CORRection:[DEVice]{? {NARRow BROad}}
	Constant	Description
	NARRow	Selects wavelength measurements for narrowband devices such
		as DFB lasers and modes of FP lasers.
	BROad	Selects wavelength measurements for broadband devices such
		as optical filters and LEDs.
Attribute	Non- sequential command
Summary	Preset State: NARRow
	*RST sets this value to NARRow
	SCPI Compliance: instrument specific
Description	The narrow bandwidth algorithm, used for measuring lasers, deter-
	mines the wavelength based upon the peak.
	The broad bandwidth algorithm, used for LEDs, filters, and chirped
	lasers, determines the wavelength based upon the center- of- mass of
	the power spectrum. The peak excursion function is used to determine
	the value of the integration limits. Care must be taken to ensure that
	the integration limits are above any noise. This is especially true when
	measuring devices with sloping noise floors, like an EDFA amplifier.
	For more information on peak excursion, refer to “PEXCursion” on
	page 4- 33.
	Instrument specifications apply when the device is set to NARRow.
	Specifications do not apply in BROad mode.
Query Response	The query form returns the previously selected device.
	NARRow

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