Anritsu MS9740A - Calculate:data:apr:dfbndw

3.4 Device Message Details
3-57
3
Message Details
:CALCulate:DATA:APR:DFBNdw?
Function
This command queries the DFB-LD application results.
This command queries the ndB-Width analysis result, which cannot be
queried with the :CALCulate:DATA:APR?.
Syntax
:CALCulate:DATA:APR:DFBNdw?
Response Data
<numeric>,<numeric>,…,<numeric>
No.
Parameter type
Description
1
<numeric>
SMSR: Side mode suppression ratio (dB)
2
<numeric>
K
σ
: Spectrum width (m)
3
<numeric>
Peak: Peak wavelength (m)
4
<numeric>
Peak: Peak level (dBm)
5
<numeric>
2nd Peak: Side mode wavelength (m)
6
<numeric>
2nd Peak: Side mode level (dBm)
7
<numeric>
Mode Offset: Difference between side mode
wavelength and peak wavelength (m)
8
<numeric>
Stop Band: Wavelength difference of both
side modes of peak wavelength (m)
9
<numeric>
Center Offset: Difference of means of peak
wavelength and both side modes
wavelength (m)
10
<numeric>
σ
: Standard deviation (m)
11
<numeric>
NDW: Spectrum wavelength width at cut
level (m)
Example of Use
:CALCulate:DATA:APR:DFBNdw?
>+3.30500000E+001,+2.33700000E-009,+1.55145800E-006,-3.4
5000000E+000,+1.55366400E-006,-3.65000000E+001,+2.206000
00E-009,+7.897000000E-009,1.13400000E-010,+7.61000000E-0
10,+9.94000000E-010