Agilent Technologies 8163A Programming Manual page 134

Measurement Operations & Settings
command:
syntax:
description:
parameters:
response:
example:
affects:
command:
syntax:
description:
parameters:
response:
example:
affects:
command:
syntax:
description:
N O T E
parameters:
response:
example:
affects:
134
[:SOURce[n]][:CHANnel[m]]:WAVelength:CORRection:ZERO:TEMPerature:LASTzero?
[:SOURce[n]][:CHANnel[m]]:WAVelength:CORRection:ZERO:TEMPerature:LASTzero?
Reports the temperature at which the last auto lamda zero took place.
none
float value; temperature in °C
sour0:wav:corr:zero:temp:last?
All tunable laser modules except Agilent 81649A, Agilent 81689A/B and 819xxA/B
[:SOURce[n]][:CHANnel[m]]:WAVelength:CORRection:ZERO:AUTO
[:SOURce[n]][:CHANnel[m]]:WAVelength:CORRection:ZERO:AUTO
Forces an auto lamda zero. This is quicker but a little less accurate than the equilavent manual
process because some checks are omitted:
none
none
sour0:wav:corr:zero:auto
All tunable laser modules except Agilent 81649A, Agilent 81689A/B and 819xxA/B
[:SOURce[n]][:CHANnel[m]]:WAVelength:FREQuency[l]
[:SOURce[n]][:CHANnel[m]]:WAVelength:FREQuency[l]<wsp><value>
[THZ|GHZ|MHZ|KHZ|HZ]
Sets the frequency difference used to calculate a relative wavelength. The output wave-
length is made up of the reference wavelength and this frequency difference.
The default units for frequency are Hertz.
The output wavelength (λ) is set from the base wavelength (λ
(df). The formula for calculating the output wavelength is:
where c is the speed of light in a vacuum (2.990 x 10
Use [l] to set the frequency of the upper or lower wavelength laser source of a dual-wave-
length 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.
The frequency difference is a float value in Hz.
none
sour0:wav:freq -10THZ
All tunable laser sources
Signal Generation – The SOURce Subsystem
c ( )
λ λ
--------------------------------- -
=
λ
( ( ) )
+
df c
o
8 -1
ms
Agilent 8163A/B, 8164A/B & 8166A/B Mainframes, Fifth Edition
) and the frequency offset
0
o
)