Santec MPM-210H - FREERUN Measurement Mode Configuration

MPM-210H OPERATION MANUAL
50 / 59
5.6.5. “FREERUN” measurement mode (CEM Mode)
“FREERUN” measurement mode measures as following condition.
・ It starts measurement after recognizing First External Trigger.
・ Measurement Interval: Time that is set using “AVG”
・ Measurement Number: Number that is set using “LOGN”
・ Measurement Wavelength: Wavelength that is set using “WAV”.
・ External Trigger Mode: Set external trigger using “TRIG 1”.
・ TIA GAIN LEVEL : Level that is set using “LEV”
・ Measurement mode: Set measurement mode with “WMOD”.
・ Above conditions should be set before running “MEAS”.
＂ MEAS＂ command
Ready Time for measurement
10ms
Average Time
First External Trigger
avg
T
usNTT
avgreqMeas
45* 
Calculte Optic Power
40us
FREERUN
measurement
completed
........
Calculte Optic Power
45us
TimeAverage:
reqMeas
T
NumberLoggingN :
1 2 NN-1
＂ AVG＂ ,＂ WAV＂ ,
＂ TRIG＂ , ＂ LOGN＂
＂ WMOD＂ ＂ LEV＂
Command
FREERUN measurement time chart
5.6.6. Sample code for FREERUN Command
- Start wave: 1550, Stop wave: 1610, step wave: 3pm
- Speed: 3nm/s
- Total wavelength sweep time: 20 second
1. ZERO - Run zeroing
A. There should be no input optical power.
2. “Delay 3 sec”
A. Time that is needed for run “ZERO “
3. AVG 0.05 - Set Average Time.
4. LOGN 400,000 - Set measurement number.
5. WAV 1550.0 - Set wavelength
6. TRIG 1 - Set external trigger.
7. WMOD FREERUN - Set measurement mode.