Application Note

MP1800ASignal Quality Analyzer Optical Module Testing

1

Ｓｌｉｄｅ 1

2006 10

MP1800 Series Signal Quality Analyzer MP1800 Series Signal Quality Analyzer Application NoteApplication Note

Optical Module TestingOptical Module Testing

Anritsu CorporationMeasurement Business Group

IP Network Measurement Division

MP1800 Series Signal Quality Analyzer Application Note: MBP-106301-00

Ｓｌｉｄｅ 2

2006 10

ContentsContents

1. Network Overview2. Various High-Speed Interfaces3. Network Equipment Composition4. Optical Transceivers (MSA Modules)5. XFP Block Diagram6. Optical Transceiver Manufacturing Process 7. Key Measurement Parameters8. Measurement Procedures9. Appendix

2

Ｓｌｉｄｅ 3

2006 10

Network OverviewNetwork Overview

Core/BackboneCore/BackboneNetworkNetwork

MetropolitanMetropolitanAreaAreaNetworkNetwork

AccessAccessNetworkNetwork

MobileMobileNetwork/IMSNetwork/IMS

RAN

OTN/SDH/SONET

Ethernet/SDH/SONET

Ethernet/PON

ATM/Ethernet

ATM/Ethernet

BTS

RNC SW

Router

Router/SW

NG Equipment

LocalLocalAreaAreaNetworkNetwork

EthernetFC/iSCSI

Router/SW LAN

MAN

WAN

Ｓｌｉｄｅ 4

2006 10

Various HighVarious High--Speed InterfacesSpeed Interfaces

OC-1STM-0

OC-3STM-1

OC-12STM-4

OC-48STM-16

OC-196STM-64

OC-768STM-256

OTU1 OTU2 OTU3

52M 156M 622M 2488M 9953M 39813M

2677M 10709M 42836M

Telecom Interfaces

IEEE1394b

1xInifiBand

IEEE1394b IEEE1394b

400M 800M 1600M

2500M

USB2.0

480M

Server/ClientExternal I/O

x4, x12

1xFC

Gibe

2xFC 4xFC

1250M

1063M 2125M 4250M

Datacom Interfaces 10xFC

10GbE

10519M

10313M

10GbEoverFEC

11096M

10xFCoverFEC

11318M

SATA 1.0

1500M

SATA IIP2

3000M

Interoperability

2500MPCI-Ex

x2, x4, x8, x12, x16, x32

XAUI

3125M x4

HSBI

4976 to 6375M

SFI4P2～3125M x4

SPI4

200M

SFI4P1

622M x16

Rapid I/O

1000M

XSBI

622M x16

XGMII

313M

CEI 11+

9953 to 11100M

SFI5P1

～3125M x16

TFI

2488/3110M

Bit RateBit Rate

10MbE

20M

100MbE

125M

2.5G

SFI5P2

～9953M x4

3

Ｓｌｉｄｅ 5

2006 10

Network Equipment CompositionNetwork Equipment Composition

Interface Card

TOSA/ROSA

Transmission Equipment /Switch/Router

SFP/SFF/GBICXFP/XPAK/X2/XENPAKOptical Transceiver

TOSA/ROSA/BOSASubassembly

CAN type LD/PD, PHY ICOptical Parts

LD/PD ChipDevice

Optical Transceiver

Ｓｌｉｄｅ 6

2006 10

Optical Transceivers (MSA Modules)Optical Transceivers (MSA Modules)

10G/40GSmall, SFI-4P2SFI-4P2/PCI CardSmall, XAUI supportSmallSmallFeatures

SDH/SONETSDH/SONET10GbE/FEC

10GbE10GbESDH/SONET10GbE/10GFC

ATM/FDDI/FC/GibeSDH/SONET

Application

x16 (SFI-4P1)x16 (SFI-5P1)

x4 (XAUI/SFI-4P2)x4 (XAUI/SFI-4P2)x4 (XAUI)SerialSerial Electrical I/F

10G/40G9.95 to 11.2G10.3G10.3G9.95 to 10.75G100M to 4GBit Rate

Form

300pinXPAKX2XENPAKXFP (Ziffy)SFF / SFP

Width 36

18 Height

Depth 121

4

Ｓｌｉｄｅ 7

2006 10

XFP Block DiagramXFP Block Diagram

Rx

Tx

Tx Data InputTx Data Output

Rx Data OutputRx Data InputOpt

ical

Inte

rfac

eElectrical Interface (XFI)

(TOSA)

(ROSA)

XFP Module Host System SERDES/ASIC

LD LD Driver

PIN-PD TIA LIA / CDR

Re-timer / CDR

TD+

TD-

RD+

RD-

Tx Data

Rx Data

Control Interface

Ｓｌｉｄｅ 8

2006 10

Optical Transceiver Manufacturing ProcessOptical Transceiver Manufacturing Process

All numbers

check

Repair

Check for non-standard module

Post-processPre-process

ModuleAssembly

Tx/Rx AdjustmentShipment

Optical Features & Mechanism

Parts Acceptance Inspection

Substrate Adjustment/

MeasurementPerformance Check Final

Inspection

Modules returned from field

・BERTS: MP1800A・Wavelength counter:86120C・Optical ATT: 8156・Multimeter: 34401・OPM: MT9810B・Oscilloscope: 86100Ａ

・BERTS: MP1800A・Wavelength counter:86120C・Optical ATT: 8156・Multimeter: 34401・OPM: MT9810B・Oscilloscope: 86100Ａ

・BERTS: MP1800A・Jitter Analyzer: MP1590B・OSA: MS9710C・Wavelength counter: 86120C・Optical ATT: 8156・Multimeter: 34401・OPM: MT9810B・Oscilloscope: 86100Ａ・Power Supply: 6612・Long Fiber（20/40/80 km）

External Check

Checked using Temperature-controlled Bath

Microscope

BER (PN)Optical Output PowerSensitivityWavelength

BER (PN)Optical Output PowerSensitivityMask Measurement

BER (Frame/Margin)Optical Output PowerSensitivityMask MeasurementJitter Measurement (Frame)

5

Ｓｌｉｄｅ 9

2006 10

Key Measurement ParametersKey Measurement ParametersTx Measurement Parameters ITU-T G.957

SDH/SONETIEEE 802.3ae

10GbEIEEE 802.3z

GbEANSI FC-PIFC 1G/2G

Center Wavelength

Average Launch Power

RMS Spectrum Width

-20 dB Spectrum

Side-mode Suppression Ratio

Extinction Ratio

Optical Modulation Amplitude

Mask of Eye Diagram

Rise Time/Fall Time

Transmitter and Dispersion Penalty

Jitter Generation

Relative Intensity Noise

Optical Return Loss Tolerance

Rx Measurement Parameters ITU-T G.957SDH/SONET

IEEE 802.3ae10GbE

IEEE 802.3zGbE

ANSI FC-PIFC 1G/2G

Wavelength

Average Receive Power

Receiver Sensitivity

Receiver Reflectance

Return Loss

Min. Overload

Stressed Receiver Sensitivity

Vertical Eye Closure Penalty

Stressed Eye Jitter

Receive Electrical 3 dB Upper Cut Off Frequency

Stressed Receiver DCD Component of DJ

Opt

ical

Out

put

Opt

ical

Inpu

t

Ｓｌｉｄｅ 10

2006 10

Key Measurement ParametersKey Measurement ParametersTransmitter SectionMeasurement Parameter Symbol Unit ExplanationAverage Optical Output Power Pout dBm Average Optical Output PowerCenter Wavelength λ nm Center WavelengthSpectral Width σ nm Spectral width of -20dB down from the peak level of optical signalSidemode Suppression Ratio SSR dB Ratio between the peak and Side modeExtinction Ratio ER dB Ratio between Data "1" and "0" of Optical power using PRBS patternOptical Modulation Amplitude OMA μW It is difference in optical power for "1" and "0" levels of the optical signal

using Square patternOptical Rise/Fall Time Tr ps Time to rise/fall between 20% and 80% of Signal levelJitter P-P/RMS ps peak to peak / RMS value at cross point of Optical waveformTransmitter Eye Mask Good/NG test which the required pulse shape characteristics are

specified in the form of a mask of the transmitter eye diagram.Data Input Swing Vin Vpp Electrical Input level for Optical outputTransmit Enable/Disable Voltage VEN/VD V Power-on / Shut-downVoltage of Optical signal

Transmit Disable Assert Time us Transmit Disable Assert Time of Optical signal

Receiver SectionMeasurement Parameter Symbol Unit ExplanationMinimum Sensitivity Rsens dBm Minimum Optical power which measured at 10-12 (or 10-10)BEROverload Pmax dBm Maximum Input PowerLOS Assert/De-Assert LOSA/LOSD dBm Optical input power which LOS is detected

LOS Hysteresis dB Difference power between detction and removal of LOS detectionData Output Swing Vout Vpp Electrical Output Amplitude level for Single endData Output Rise/Fall Time Tr ps Time to rise/fall between 20% and 80% of Signal levelLOS Signal Level V High/Low Voltage of LOS indicate signal output

Opt

ical

Out

put

Elec

tric

alIn

put

Opt

ical

Inpu

tEl

ectr

ical

Out

put

6

Ｓｌｉｄｅ 11

2006 10

Key Measurement ParametersKey Measurement Parameters

Rise Time Time to rise from 20% to 80% of signal levelFall Time Time to fall from 80% to 20% of signal levelExtinction ratio Ratio of optical power of “0” and “1” data Jitter Time variation of rising or falling edge of optical waveformMin. Sensitivity Optical power of input signal to achieve 10-10 or 10-12 BER

Test procedure described in IEC61280-2-1, 61280-2-2

Power (dB

m)

Time (ps)

BER

Input optical power (dBm)

Tr Tf

Jitter

Sensitivity

Optical output waveform

10-12

Ｓｌｉｄｅ 12

2006 10

1. Center Wavelength2. Spectral Width3. Average Optical Output Power4. Transmitter Eye-Diagram5. Extinction Ratio & OMA6. Minimum Sensitivity7. Jitter

＊Reference ITU-T G.957 and IEEE802.3z/ae

Measurement ProceduresMeasurement Procedures

7

Ｓｌｉｄｅ 13

2006 10

The maximum spectral width is specified as the maximum full width of the center wavelength peak, measured –20 dB down from the maximum amplitude of the center wavelength.

1. Center Wavelength 2. Spectral Width

E/O

MS9710COptical Spectrum Analyzer

DUT

System Setup

O/E

Data

XData

Wavelength

Power

–20 dBB

A: Center wavelength

B: Max. –20 dB width

A

Measurement ProceduresMeasurement Procedures

MP1800A SQA (PPG)

Ｓｌｉｄｅ 14

2006 10

3. Average Optical Output Power

*Point S: The reference point on the optical fiber just after the transmitter optical connector *Point R: The reference point on the optical fiber just before the receiver optical connector.System Setup

MP1800A SQA (PPG)

E/O

MT9810B Optical Power MeterDUT

O/E

Data

XData

Measurement ProceduresMeasurement Procedures

The mean launched power at point S is the averagepower of the transmitter. It is given as a range toallow for some cost optimization and to cover allowances for operation under standard operatingconditions, Tx connector degradations, measurement tolerances, and aging effects. These values allow calculation of values for the sensitivity and overload point for the Rx at point R.

8

Ｓｌｉｄｅ 15

2006 10

4. Transmitter Eye-DiagramTransmitter pulse shape characteristics, including rise/fall

times, pulse overshoot/undershoot, and ringing—all of which should be controlled to prevent excessive degradation of the Rx sensitivity—are specified in the form of a mask for the Tx eye-diagram at point S.

The parameters specifying the mask for the Tx eye-diagram are shown in ITU-T G.959 Fig. 7-1.

Measurement ProceduresMeasurement Procedures

G.959.1_F7-1

Mean level of centre oflogical "1"

Mean level of centre oflogical "0"

1+y3

1

y2

0

1

0.5

y1

–y4

0 x2 x3

#1 – Δ is a variable –0.25 < Δ < +0.25.#2 – x2 and x3 of the rectangular eye mask need not be equidistant with respect to the vertical axes at 0 UI and 1 UI.

0.250.250.250.250.25y4

0.250.250.250.40.25y3

0.75Δ + 0.75 (#1)0.750.750.75y2

0.25Δ + 0.25 (#1)0.250.250.25y1

0.20.20.20.20.2x3–x2 (#2)

NRZ 40GNRZ 10G Amplified

NRZ 10G 1550-nm region

NRZ 10G 1310-nm region

NRZ 2.5G

Ｓｌｉｄｅ 16

2006 10

Measurement ProceduresMeasurement Procedures

The convention for the optical logic level is: Light emission = logical “1”No emission = logical “0”

EX is defined as: ER = 10 log10(A/B)

OMA is defined as: OMA = A – B

Where, A is the average optical power level for logical “1”and B is the average optical power level for logical “0”.

5. Extinction Ratio & OMA

OM

A

A

B

Average Power

OMA: Optical Modulation Amplitude

ER: Extinction Ratio

9

Ｓｌｉｄｅ 17

2006 10

4. Transmitter Eye-Diagram5. Extinction Ratio & OMA

System Setup

E/O

MP1026AEye Pattern Analyzer

（Sampling Oscilloscope）DUT

O/ETrigger

Data

XData

Measurement ProceduresMeasurement Procedures

MP1800A SQA (PPG)

P

Ｓｌｉｄｅ 18

2006 10

Measurement ProceduresMeasurement Procedures

Average optical power (or OMA）vs. BER

The minimum sensitivity level for receiver section is obtained from this graph.

Min Sensitivity: Min Sensitivity: ––24.68 dBm at BER 1E24.68 dBm at BER 1E--1010

6. Minimum SensitivityReceiver sensitivity is defined as the minimum acceptable value of average received power at point R to achieve BER 1E–10 (or 1E–12).

*It takes into account power penalties caused by use of a transmitter under standard operating conditions with worst-case values for extinction ratio, pulse rise/fall times, optical return loss at point S, Rx connector degradations and measurement tolerances.

10

Ｓｌｉｄｅ 19

2006 10

6. Minimum SensitivitySystem Setup

GoldenE/O

MT9810BOptical Power Meter

Optical Attenuator

O/E

DUT

Data

XData

Data

E/O

Coupler

Measurement ProceduresMeasurement Procedures

MP1800A SQA

Optical Interface

or Electrical Interface

Ｓｌｉｄｅ 20

2006 10

Measurement ProceduresMeasurement Procedures

Type of Jitter measurement

GeneralMeasure Mask of Eye Diagram and time variation of the rising/falling edge of signal using Oscilloscope.

ITU-T baseMeasure Jitter Generation/Tolerance/Transfer and Output Jitter using Jitter Analyzer

IEEE base (Stressed Eye)Stressed Receiver Conformance Test

7. Jitter measurement

11

Ｓｌｉｄｅ 21

2006 10

AppendixAppendix

High-Speed Electrical InterfacesCoaxial ConnectorsReferences

Ｓｌｉｄｅ 22

2006 10

HighHigh--Speed Electrical InterfacesSpeed Electrical Interfaces

-400100200200200Rx Vin [mVp-p]min

50 Ω to GND50 Ω100 Ω between Diff. ports

50 Ω to +1.3 V50 Ω to +3 V50 Ω to -2 VImpedance Termination

900 800 350 800 800 800 Tx Vod [mVp-p] Typ

–0.90 Vcc –0.801.075 1.60 3.20 –1.70 Tx Vol [V]

–0.45 Vcc –0.401.250 2.00 3.60 –1.30 Tx Vcenter [V]

0.00 Vcc1.425 2.40 4.00 –0.90 Tx Voh [V]

DC or ACDC or ACDC DC or ACDC or ACDC or ACCoupling

DC to >40 Gbit/sDC to >10 Gbit/sDC to >2 Gbit/sDC to >10 Gbit/sDC to >10 Gbit/sDC to >10 Gbit/sOperating Bit rate

Point to PointPoint to PointPoint to Point,

Multipoint

Point to Point,

Multipoint

Point to Point,Multipoint

Point to Point,

Multipoint

Bus

SCFLCMLLVDSLVPECL (+3.3 V)PECL (+5 V)ECL

Signal swing comparisons showing differential output voltage and driver offsets of ECL, PECL, LVPECL, LVDS, CML and SCFL

12

Ｓｌｉｄｅ 23

2006 10

HighHigh--Speed Electrical InterfacesSpeed Electrical Interfaces

Termination for ECL/PECL/LVPECL

A: ECL terminated by 50 Ω to VTT; –2 V (ECL), +3.0 V (PECL), +1.3 V (LVPECL)

B: PECL terminated by Thevenin network, R1/R2 = 50 Ω

C: Differential ECL terminated by 100 Ω parallel termination

D: Differential ECL Multipoint bus terminated by 50 Ω to VTT at each end of bus

C

Termination for CML

A: Point-to-Point CML with internal source and load terminations—50 Ω pull-ups to positive rail

B: AC coupled Point-to-Point CML with internal source and load terminations—driver and receiver may be powered from different rails

Termination for SCFL

SCFL terminated by 50 Ω to GND

Termination for LVDS

A: LVDS terminated by 100 Ω parallel termination

B: Multidrop LVDS terminated by 100 Ω parallel termination at far end only; stubs off main line should be shortest possible length

C: Multipoint LVDS bus terminated by two parallel terminations equal to 100 Ω or effective load impedance of bus—typically in 54 to 100 Ω range

Reference: National Semiconductor

Ｓｌｉｄｅ 24

2006 10

Coaxial ConnectorsCoaxial Connectors

1.0 mm

1.85 mm

2.4 mm

2.92 mm

3.5 mm

3.5 mm

Type

50 ΩDC–50 GHzAPC-2.4

50 ΩDC–110 GHzW1

Compatible with APC-2.450 ΩDC–65 GHzV

Compatible with SMA50 ΩDC–40 GHzK

Compatible with SMA50 ΩDC–26.5 GHzAPC-3.5

50 ΩDC–18.5 GHzSMA

CommentImpedanceFrequency Range

Coaxial Connector

13

Ｓｌｉｄｅ 25

2006 10

ReferencesReferences

http://www.300pinmsa.org300pinhttp://www.qsfpmsa.org/QSFPhttp://www.xenpak.org/XENPAKhttp://www.x2msa.org/X2http://www.xpak.org/XPAKhttp://www.xfpmsa.org/cgi-bin/home.cgiXFPhttp://schelto.com/SFP/SFF/sff.htmSFFhttp://schelto.com/SFP/index.htmlSFPhttp://MSA

Ｓｌｉｄｅ 26

2006 10

ENDEND

Anritsu Corporation5-1-1 Onna, Atsugi-shi, Kanagawa, 243-8555 JapanPhone: +81-46-223-1111Fax: +81-46-296-1264

• U.S.A.Anritsu Company1155 East Collins Blvd., Suite 100, Richardson, TX 75081, U.S.A.Toll Free: 1-800-267-4878Phone: +1-972-644-1777Fax: +1-972-671-1877

• CanadaAnritsu Electronics Ltd.700 Silver Seven Road, Suite 120, Kanata, Ontario K2V 1C3, CanadaPhone: +1-613-591-2003 Fax: +1-613-591-1006

• Brazil Anritsu Eletrônica Ltda.Praca Amadeu Amaral, 27 - 1 Andar01327-010-Paraiso-São Paulo-BrazilPhone: +55-11-3283-2511Fax: +55-11-3288-6940

• U.K.Anritsu EMEA Ltd.200 Capability Green, Luton, Bedfordshire, LU1 3LU, U.K.Phone: +44-1582-433200 Fax: +44-1582-731303

• FranceAnritsu S.A.9 Avenue du Québec, Z.A. de Courtabœuf 91951 Les Ulis Cedex, France Phone: +33-1-60-92-15-50Fax: +33-1-64-46-10-65

• GermanyAnritsu GmbHNemetschek Haus, Konrad-Zuse-Platz 1 81829 München, Germany Phone: +49-89-442308-0 Fax: +49-89-442308-55

• ItalyAnritsu S.p.A.Via Elio Vittorini 129, 00144 Roma, ItalyPhone: +39-6-509-9711 Fax: +39-6-502-2425

• SwedenAnritsu ABBorgafjordsgatan 13, 164 40 KISTA, SwedenPhone: +46-8-534-707-00 Fax: +46-8-534-707-30

• FinlandAnritsu ABTeknobulevardi 3-5, FI-01530 VANTAA, FinlandPhone: +358-20-741-8100Fax: +358-20-741-8111

• DenmarkAnritsu A/SKirkebjerg Allé 90, DK-2605 Brøndby, DenmarkPhone: +45-72112200Fax: +45-72112210

• SpainAnritsu EMEA Ltd. Oficina de Representación en EspañaEdificio VeganovaAvda de la Vega, n˚ 1 (edf 8, pl 1, of 8)28108 ALCOBENDAS - Madrid, SpainPhone: +34-914905761Fax: +34-914905762

• United Arab EmiratesAnritsu EMEA Ltd.Dubai Liaison OfficeP O Box 500413 - Dubai Internet CityAl Thuraya Building, Tower 1, Suit 701, 7th FloorDubai, United Arab EmiratesPhone: +971-4-3670352Fax: +971-4-3688460

• SingaporeAnritsu Pte. Ltd.10, Hoe Chiang Road, #07-01/02, Keppel Towers,Singapore 089315 Phone: +65-6282-2400 Fax: +65-6282-2533

• IndiaAnritsu Pte. Ltd. India Branch OfficeUnit No. S-3, Second Floor, Esteem Red Cross Bhavan,No. 26, Race Course Road, Bangalore 560 001, IndiaPhone: +91-80-32944707Fax: +91-80-22356648

• P.R. China (Hong Kong)Anritsu Company Ltd.Units 4 & 5, 28th Floor, Greenfield Tower, Concordia Plaza, No. 1 Science Museum Road, Tsim Sha Tsui East,Kowloon, Hong KongPhone: +852-2301-4980Fax: +852-2301-3545

• P.R. China (Beijing)Anritsu Company Ltd.Beijing Representative OfficeRoom 1515, Beijing Fortune Building, No. 5, Dong-San-Huan Bei Road, Chao-Yang District, Beijing 10004, P.R. ChinaPhone: +86-10-6590-9230Fax: +86-10-6590-9235

• KoreaAnritsu Corporation, Ltd.8F Hyunjuk Building, 832-41, Yeoksam Dong, Kangnam-ku, Seoul, 135-080, KoreaPhone: +82-2-553-6603Fax: +82-2-553-6604

• AustraliaAnritsu Pty. Ltd.Unit 21/270 Ferntree Gully Road, Notting Hill, Victoria 3168, AustraliaPhone: +61-3-9558-8177Fax: +61-3-9558-8255

• TaiwanAnritsu Company Inc.7F, No. 316, Sec. 1, Neihu Rd., Taipei 114, TaiwanPhone: +886-2-8751-1816Fax: +886-2-8751-1817

Specifications are subject to change without notice.

No. MP1800A-E-F-1-(1.00) Printed in Japan 2007-5 AKD

Please Contact:

070207

Printed on 70% Recycled Paper

公知