Sandia National Laboratories is a multi- mission laboratory managed and operated by the National Technology and Engineering Solutions of Sandia LLC, a wholly owned subsidiary of Honeywell International Inc. for the U.S. Department of Energy’s National Nuclear Security Administration under Contract No. DE-NA0003525.

PDVinaBox

D.H.DolanSheriPayneandBrianEsquibel

SAND2018-5287C

PDVWorkshopMay16,2018

1

Overview§ PDVsystemsareeasytobuild,unlessyouneed:

§ Serviceability(accessible/replaceableparts)§ Flexibility(leapfrog,multiplex,…)§ Scalability(>4channels)§ Unifiedcomputercontrol

§ Traditionalbuildapproachisreachingitslimits§ Specificpartsvanishorbecomescarce§ Laborisexpensive

§ Isthereabetterway?§ Modularsystems§ Easytobuildandreconfigure

2

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.

3

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

5

Testing

§ LaserBlades testedonanexistingPDVsystem§ 12GHzMiteq receivers§ Similarspectrogramas

separateprobewithNKTlasers

§ Gainedunderstandingofdither

§ DynamicTestusingourBladeMaster§ ExistingPDV

§ 1NPPhotonics“Rock”§ 1NKT

6

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

7

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

8

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

10

11

Extraslides

CompleteSystemOne-Line

12

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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