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Can I Disable Frequency Control (FC) Dither on a Laser Source?

Can I Disable Frequency Control (FC) Dither on a Laser Source?

Frequently Asked Questions (FAQs)SummaryFC Dither is activated in a laser source every time the frequency or wavelength is changed. Its purpose is to limit drift in Output Power and FrequencyQuestionCan I Disable Frequency Control (FC) Dither on an N7711A/N7714A?Answer Yes, FC Dither may be controlled and queried using the following code:   command:[:SOURce[n]][:CHANnel[m]]:CONTrol:FCDithersyntax:[:SOURce[n]][:CHANnel[m]]:CONTrol:FCDither OFF|0|ON|1description:Switches the frequency control dither on or off.parameters:OFF or 0: Disable the frequency control dither. ON or 1: Enable the frequency control dither.response:noneexample:sour1:cont:fcd onaffects: notes:    command:[:SOURce[n]][:CHANnel[m]]:CONTrol:FCDither?syntax:[:SOURce[n]][:CHANnel[m]]:CONTrol:FCDither?description:Returns the frequency control dither state.parameters:noneresponse:0: off 1: onexample:sour1:cont:fcd? à 0affects: notes:  However, switching FC Dither off will affect the regulation of the Laser, rendering the Laser Source liable to frequency drift and possible other unstable behaviour.

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