Keysight Technologies 8163A/B - Page 156

156 8163A/B, 8164A/B & 8166A/B Mainframes Programming Guide
4 Measurement Operations & Settings
command: [:SOURce[n]][:CHANnel[m]]:WAVelength[:CW[l]|:FIXED[l]]?
syntax: [:SOURce[n]][:CHANnel[m]:WAVelength[:CW[l]|:FIXED[l]]?[<wsp>[MIN|DEF|MAX]
description: Returns the wavelength value in meters.
parameters: none
Also allowed, for tunable laser modules
only, are
MIN: minimum wavelength
MAX: maximum wavelength
DEF: This is not the preset (*RST) default value but is half the sum of, the
minimum wavelength value and the maximum wavelength value
Use [l] to query the upper or lower wavelength laser source of a dual-wavelength laser source. The default value of [l] is 1, the
lower wavelength source. The upper wavelength source is denoted by 2.
response: The wavelength as a float value in meters.
example: sour0:wav? -> +1.5672030E-006<END>
sour0:wav? min -> +1.5500000E-006<END>
sour2:wav:fixed2? -> +1.61544494E-006<END>
Returns the current wavelength
value for a tunable laser module.
Returns minimum wavelength for a
tunable laser module.
Returns the wavelength value of the
upper wavelength source of a
dual-wavelength laser source.
affects: All laser source, DFB source, and tunable laser modules including 81950A and return loss modules with an internal source
command: [:SOURce[n]][:CHANnel[m]]:WAVelength:TOGRid
syntax: [:SOURce[n]][:CHANnel[m]]:WAVelength:TOGRid<wsp>
<value>[PM|NM|UM|MM|M]
description: Set the wavelength to the nearest grid point only changing the channel number.
parameters: The wavelength value.
response: none
example: sour4:wav:togr 1.6um
affects: 81950A
Notes Only available in "Grid Mode"
The frequency offset is neither changed nor taken into account when calculating the nearest channel.