YOKOGAWA AQ6370D User Manual

App-16
IM AQ6370D-01EN
Appendix 3 Details of Each Analytical Functions
DFB-LD Analysis Function
The following parameters for DFB-LD light sources are analyzed collectively.
• −XdB WIDTH
• SMSR
• RMS
• POWER
• OSNR
Following table shows the details of parameters for DFB-LD analysis.
Parameter Abbreviation Default Value Setting Range Unit Description
−XdB WIDTH
(Center WL/
SPWD)
ALGO THRESH
ENVELOPE/
THRESH/RMS/
PK-RMS
-
THRESH 20.00 0.01 to 50.00 dB
THRESH2 20.00 0.01 to 50.00 dB
Valid only when ALGO is
ENVELOPE.
K 1.00 1.00 to 10.00 -
MODE FIT OFF ON / OFF -
Valid only when ALGO is
THRESH.
MODE DIFF 3.00 0.01 to 50.00 dB
Invalid when ALGO is
RMS.
SMSR
SMSR MODE SMSR1
SMSR1/SMSR2/
SMSR3/SMSR4
-
SMSR MASK ±0.00 0.00 to 99.99 nm
MODE DIFF 3.00 0.01 to 50.00 dB
RMS
ALGO RMS RMS/PK-RMS - -
THRESH 20.00 0.01 to 50.00 dB -
K 2.00 0.01 to 10.00 - -
MODE DIFF 3.00 0.01 to 50.00 dB
Invalid when ALGO is
RMS.
POWER SPAN 0.40 0.01 to 10.00 nm -
OSNR
MODE DIFF 3.00 0.01 to 50.00 dB -
NOISE ALGO PIT
AUTO-FIX/
MANUAL-FIX/
AUTO-CTR/
MANUAL-CTR/
PIT
- -
NOISE AREA AUTO
AUTO/
0.01 to 10.00
nm -
MASK AREA -
-/
0.01 to 10.00
nm -
FITTING
ALGO
LINEAR
LINEAR/GAUSS/
LORENZ/3RD
POLY/4TH
POLY/5TH POLY
- -
NOISE BW 0.10 0.01 to 1.00 nm -
SIGNAL
POWER
PEAK PEAK/INTEGRAL - -
INTEGRAL
RANGE
10 10 to 999 GHz -
For details on the DFB-LD analysis algorithms, see the data calculation algorithms for
spectrum widths, the SMSR analysis algorithms, and the WDM analysis algorithms (OSNR
analysis).

YOKOGAWA AQ6370D Specifications

General

Brand	YOKOGAWA
Model	AQ6370D
Category	Measuring Instruments
Language	English