Section 9 Details on Device Messages
9-16
9.5 APR [Application Result]
■ Function
Reads the result of analysis carried out with an AP command.
Response data is the result of the last analysis made by executing an AP com-
mand.
Header Program Query Response
APR None APR ? SMSR, BWndb, λ p, Lp, :Type 1
λ sm, Lsm, MOFS,
STBW, CNTOFS
FWHM, λ m, λ p, Lp, :Type 2
MODE, MSPC, POW
λ fwhm, λ ndb, FWHM, :Type 3
BWndb, λ p, Lp,
PKdens, POW
∆ t, λ 1st, λ last, :Type 4
PKcount
G,NF ,λ sig, Lase, :Type 5
RES
■ Response data
Values are tail-zero-suppressed.
Type 1: DFB-LD measurement
• Value of SMSR
SMSR indicates a side mode suppression ratio
The unit is dB. A value is output down to the second decimal place.
When analysis is impossible, –999.99 is output.
• Value of BWndb
BWndb indicates an wave width (ndB-down width).
The unit is nm. A value is output down to the third decimal place.
When analysis is impossible, –1 is output.
• Value of λp
λp indicates a main peak wavelength.
The unit is nm. A value is output down to the third decimal place.
When analysis is impossible, –1 is output.
• Value of Lp
Lp indicates a main peak level.
The unit is nm. A value is output down to the second decimal place.
When analysis is impossible, –999.99 is output.
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