Agilent Technologies Agilent 8166A Bedienerhandbuch Seite 116

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Measurement Operations & Settings Signal Generation – The SOURce Subsystem
116 Agilent 8163A/B, 8164A/B & 8166A/B Mainframes, Fifth Edition
command:
[:SOURce[n]][:CHANnel[m]]:AM:SOURce[l]
syntax: [:SOURce[n]][:CHANnel[m]]:AM:SOURce[l]<wsp>
INT|INT1|INT2|COHC|AEXT|EXT|DEXT|WVLL|BACK|0|1|2|3|5|6
description: Selects the type or source of the modulation of the laser output.
parameters: 0, INT1, or INTernal:
1, COHCtrl, or INT2:
2, AEXTernal, or EXT:
3 or DEXTernal:
5 or WVLLocking:
6 or
BACKplane
:
internal digital modulation
coherence control
external analog modulation
external digital modulation
wavelength locking
external digital modulation using Input Trigger Connector
NOTE Use [l] to set the modulation source of the upper or lower wavelength laser source of a dual-
wavelength laser source or a return loss module with an internal dual-wavelength laser
source. The default value of [l] is 1, the lower wavelength source. The upper wavelength
source is denoted by 2.
response: none
example: sour2:am:sour int
affects: All laser sources, DFB sources, and tunable laser modules can use internal digital modula-
tion; as can return loss modules containing an internal source.
DFB source and tunable laser modules can use coherence control.
Other modulation modes are only available with tunable laser modules.
command:
[:SOURce[n]][:CHANnel[m]]:AM:SOURce[l]?
syntax: [:SOURce[n]][:CHANnel[m]]:AM:SOURce[l]?
description: Returns the type or source of the modulation of the laser output.
parameters: none
NOTE Use [l] to query the modulation source of the upper or lower wavelength laser source of a
dual-wavelength laser source or a return loss module with an internal dual-wavelength laser
source. The default value of [l] is 1, the lower wavelength source. The upper wavelength
source is denoted by 2.
response: 0:
1:
2:
3:
5:
6:
internal digital modulation
coherence control
external analog modulation
external digital modulation
wavelength locking
external digital modulation using Input Trigger Connector
example: sour2:am:sour? +0<END>
affects: All laser sources, DFB sources, and tunable laser modules can use internal digital modula-
tion; as can return loss modules containing an internal source.
DFB source and tunable laser modules can use coherence control.
All other modulation modes are only available with tunable laser modules.
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