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PDVinaBox
D.H.DolanSheriPayneandBrianEsquibel
SAND2018-5287C
PDVWorkshopMay16,2018
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Overview§ PDVsystemsareeasytobuild,unlessyouneed:
§ Serviceability(accessible/replaceableparts)§ Flexibility(leapfrog,multiplex,…)§ Scalability(>4channels)§ Unifiedcomputercontrol
§ Traditionalbuildapproachisreachingitslimits§ Specificpartsvanishorbecomescarce§ Laborisexpensive
§ Isthereabetterway?§ Modularsystems§ Easytobuildandreconfigure
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The“BladeMaster”§ 9-slotrack
§ Masterpowerandlaserkeylock§ EthernetandUSBcontrol
§ PDVsystemscanbebuiltaroundblades(1-4itemsperblade)§ Lasers§ InlineAttenuators§ Powermeters§ O2Econvertors§ Polarizationcontrol§ Switches§ PassiveStorage
MTP1000 & MTPminiModular Test Platform
Key Features
· All-in-one benchtop test platform with multi-functional blades
· One intuitive and easy to use software for all the Blades
· Ethernet or USB connectivity
· SCPI compliant remote control for simple automation
· Limitless scalability
Ultimate Scalability and Versatility Built-in
With the modular architecture, you can set up a testing platform with just the right number of blades to suit your current requirement while future proofing yourself with the potential to add more.
The available blades are: LaserBlade-ITLA, LaserBlade-DFB, VOABlade, SwitchBlade, PowerBlade-I, PowerBlade-T, PolBlade, O2EBlade, SLEDBlade & TrayBlade.
Efficient Use of Space
MTP1000 platform lets you make the most of your testing bench space by housing up to 9 blades of your choice. This enables you to replace a tower of stacked equipment with just one mainframe.
19-inch Rack Mountability
The MTP1000 mainframe with the optional rack mounting brackets is compatible with any 19-inch rack for easy integration into your testing set up.
Full-size or Mini, Your Choice
Just want a couple of Blades to put in a cramped space? MTPmini lets you harness all the flexibility and connectivity in a small two-module chassis, with a built-in touch screen for stand-alone operation.
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Buildinga4-channelPDVsystem§ MPT1000crate:$6300§ 2xFour-channelLaserBlades:$13,600each
§ Independenttuningover5THz(1527.605-1567.132)!§ 35mW outputoneachlaser§ Frequencystability<25seconds
§ 4xTrayBlades:$520each§ 8FC/APCconnectionseach(couldfittwoPDVchannels)
§ 1xPowerBlade:$4450§ VOABlade isalittlemoreexpensive,includesapowermeter
§ 2xO2EBlades:$15,750each§ Tworeceiversperblade,3dB@25GHz,about900V/W
§ Shippingfortheaboveitems:$1200§ Totalinvoice:$72,730§ $500-1000inpassiveparts,afewhoursoflabor4
Firstcompletesystem
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Testing
§ LaserBlades testedonanexistingPDVsystem§ 12GHzMiteq receivers§ Similarspectrogramas
separateprobewithNKTlasers
§ Gainedunderstandingofdither
§ DynamicTestusingourBladeMaster§ ExistingPDV
§ 1NPPhotonics“Rock”§ 1NKT
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Blade Master
Legacy PDV
Ditherissues
§ Frequencylockingsystemusesdither§ Uncorrelated
within/betweenblades
§ ±100MHzat888Hz
§ LongFFTsdon’tgetnarrower§ Min/maxstates
lastlonger,resultingina“Batman”profile
§ Long,slowdriftontopofthedither
Scan 1
Time (ms)0 1 2 3
Freq
uenc
y (G
Hz)
1.95
2
2.05
2.1
2.15
Rel
ativ
e po
wer
(dB)
-60
-50
-40
-30
-20
-10
0
Frequency (GHz)1.95 2 2.05 2.1 2.15
Rel
ativ
e po
wer
0
0.2
0.4
0.6
0.8
1
Scan 2
Time (ms)0 1 2 3
Freq
uenc
y (G
Hz)
1.95
2
2.05
2.1
2.15
Rel
ativ
e po
wer
(dB)
-60
-50
-40
-30
-20
-10
0
Frequency (GHz)1.95 2 2.05 2.1 2.15
Rel
ativ
e po
wer
0
0.2
0.4
0.6
0.8
1
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Isditheraproblem?
§ Experimentduration§ Howlongsincemotionbegan?§ Worstcaseassumesmaximumchirp,which
isalsotheleastlikelyresult
§ Workarounds§ Explicitlymonitorreferencefrequency§ Analyzetheextendedbaselineandsubtract
thisfrequency§ Store1-2ms ofdatapriortomotionand
projectthereferenceforwardintime
Experimentduration
Frequency error
0.1 us 0.06 MHz
1 us 0.6 MHz
10 us 6 MHz
100 us 60 MHz
1 ms 200 MHz
10 ms ~200 MHz
1 MHz is 0.775 m/s§ Is it worth putting up with dither?
§ Convenience and cost of the LaserBlades§ Extreme tuning range (50 ITU channels!)
§ Avoid crosstalk between adjacent and overlapping probes
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Summary§ ThereisalottolikeabouttheBladeMaster…
§ Everythingbutthedigitizerinoneunit§ Commoncommunicationinterfaceandsafetysystem§ Minimallaborcosts§ Designflexibilitywitheasybladereplacement
§ …it’sgenerallypricecompetitive§ Lasersarelessexpensive§ Powermonitors andswitchesarereasonable§ Detectorsarepricey,bandwidthhigherthanmostusersneed
§ Lasershavesomelimitations§ Modestpower(withoutexternalamplification)§ Dithermaybeanissueforsomeapplications
§ Someinterestingthingsinthepipeline…9
Comingsoon► DopplerBlade
■ Everything but the Laser and Receiver
► PXIe blades■ TrayBlade■ VOABlade■ SwitchBlade■ O2EBlade■ DopplerBlade■ LaserBlades
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Extraslides
CompleteSystemOne-Line
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NSTEC
NSTEC
BLADE MASTER
1 OF 1
DESIGN ID: DESIGN PROJECT:
SIZE:
TITLE:
DATE:
DATE:
DATE:
DATE:
7/11/2017DATE:
DATE:
APPROVER 4:
APPROVER 3:
APPROVER 2:
APPROVER 1:
CHECKER:
Brian EsquibelDRAWN:
*A 7/11/2017B. Esquibel
DESCRIPTIONZONEREV DATEDRAWNEC NO.
REVISIONS SEE ECO FOR DIGITAL SIGNATURES
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Channel 2ASCENTTA
3 Port CirculatorCIR-3-15-L-10-FA-5.5x38
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COHERENT SOLUTIONSLaser Blade
(Target Laser)
COHERENT SOLUTIONSPower Blade(Inline Power
Meter)
COHERENT SOLUTIONSO2E Blade(Optical to Electrical
Converter)
Probes
Digitizer
Channel 3ASCENTTA
3 Port CirculatorCIR-3-15-L-10-FA-5.5x38
Channel 4ASCENTTA
3 Port CirculatorCIR-3-15-L-10-FA-5.5x38
Channel 1ASCENTTA
3 Port CirculatorCIR-3-15-L-10-FA-5.5x38
COHERENT SOLUTIONSO2E Blade(Optical to Electrical
Converter)
COHERENT SOLUTIONSLaser Blade
(Reference Laser)
Channel 1ASCENTTA2x2 Split ter
CP-S-15-50-22-A54-S-L-05-FA
Channel 2ASCENTTA2x2 Split ter
CP-S-15-50-22-A54-S-L-05-FA
Channel 3ASCENTTA2x2 Split ter
CP-S-15-50-22-A54-S-L-05-FA
Channel 4ASCENTTA2x2 Split ter
CP-S-15-50-22-A54-S-L-05-FA
LaserBlade
LaserBlade CH 1 CH 2 CH 3 CH 4
PowerMeter O2E O2E
1
2
3
4
1
2
3
4
1
1
2
2
PDV Channels
IN
IN
IN
IN
OUT
OUT
OUT
OUT
_______ SMA 18GHz Coax_______ SMF-28 Fiber
THORLABS FC/APC Connector
ADAFC4
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