Jan Radil, Josef Vojtěch, Miloslav Hůlajosef.vojtech@cesnet.cz

Open Transmission and Switching Systems (CL Family)

www.ces.net

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Authors participate on:

CESNET research program (www.ces.net),

GN3 project (www.geant.net),

Phosphorus project (www.ist-phosphorus.eu)

Presented content do not necessarily reflect an official opinion of any institution or project.

Open Transmission and Switching Systems (CL Family)

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Open Transmission and Switching Systems (CL Family)

Outline Introduction

What was presented on the last CEF workshop in 2007.

Concepts Used - Open Photonic Devices

Deployment of New Devices What kind of devices is needed and requested?

Conclusions

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Open Transmission and Switching Systems (CL Family)

Introduction The physical layer is important for us

Not repeating all arguments and pros&cons of optical/photonic devices vs electronic devices

Back in 2007 (4th CEF) we introduced Optical amplifiers (EDFA, Raman, TDM-pumped Ramans) Tuneable compensators of chromatic dispersion Optical crossconnects or switches (with or without multicast) Wavelength convertors and 2R regenerators

New open photonic devices named CzechLight FamilyImportant question – which devices are requested?

New solutions like advanced modulation formats for 40G and tuneable 10G and 40G transceivers affect possible network designs

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First Open Photonic devices deployed in CESNET2 in 2004 (CLA – EDFA)

Now manufactured by companies/vendors under license of CESNET

Building blocks of Open WDM systems EDFAs (terminal, inline applications, CATV, …): Already deployed (CESNET2,

EF) Raman amplifiers (amplification in long NIL)

CW pumped TDM pumped

Tunable CD compensators (long NIL, 40G): Already deployed (CESNET2, EF) TFBG, GTE*, VIPA* based Used extensively with 40G Advanced Modulation Formats for GN2 JRA4

Reconfigurable Optical Add/Drop Multiplexers (ROADMs) Variable Mux/Demuxes (VMUX) Wavelength selective switches (WSS) * Optical channel monitors (OCM) * in experimental regime,

working samples

Open Transmission and Switching Systems (CL Family)

Family of Open Photonics Devices I

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Advanced devices Photonic fibre switches: Already deployed (CESNET2, EF)

8x8, 16x16 (4x4 possible but ‚too small‘) mechanical (MEMS, broadband – O, C, L bands and sometimes

visible light) or non mechanical (PLC – typical C band) with or without power monitoring

Photonic fibre switches with multicast option: Already deployed (CESNET2, EF, StarLight)

4x4, 8x8*, 2x16, 16x16* mechanical (MEMS, broadband) or non mechanical (PLC) with or without power monitoring

All optical wavelength converters * SOA MZI based HNLF based * in experimental regime,

working samples

Open Transmission and Switching Systems (CL Family)

Family of Open Photonics Devices II

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Concepts used for building of networks: Operational National Research and Educational Network

(NREN) - CESNET2

Experimental Facility (EF) – CzechLight, part of Global Lambda Integrated Facility (GLIF), see http://www.glif.is

Dark Fibre (DF) + Customer Empowered Fibre (CEF) Networks

Nothing in Line Approach (NIL)

Cross Border Fibres (CBF)

Family of Open Photonic Devices – CzechLight Family

Open Transmission and Switching Systems (CL Family)

Concepts used for networks

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Family of open photonic devices (CL family) enabling early adoption of advanced and new photonic technologies.Research and experimentation on dark fibre level, fast testing and prototyping, support of experimental applications requested by users or field experiments on dark fibre lines.Proved to be useful for CESNET2, CESNET EF, CBF lighting, GLIF applications development, remote monitoring and control, low latency and deterministic multicast.Freedom of design, ability to meet user needs, easy to modify if change necessary, lower cost, saving energy and space.‚Openness‘ can: solve interoperability issues of the physical layer, decrease expenses and reduce delivery time.

One example - equalizing power levels between two DWDM systems during GLIF 2007 demos.

Open Transmission and Switching Systems (CL Family)

Advantages of these concepts

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UCSDCalit2

PNWGP

CW6506

GLIFMog

HD RX

7609

CW6506

HD RX HD TX

CW6506

6509

e1200

HD RX

StarLight

CzechLight

BrnoC6506

PrahaE300

CAVEwave(2155)

C-Wave(2155)

C-W

ave

(215

5)

(440)(441)

CESNET(trunk 440,441)

(2155)

EVLe600

CESNETCLM

(441)

I1O1O2

O3

O4

(445)(2155)

IP: 10.200.200.200MAC: 10:10:10:10:10:10

IP: 10.200.200.200MAC: 10:10:10:10:10:10

IP: 10.200.200.200MAC: 10:10:10:10:10:10

‚TX only‘RX onlyRX only

RX only Tx

Rx

6/2

6/66/106/14

GLIF 2008 CLM Demonstration in Cinegrid demos

Combination of 10G international lambdas, DWDM

Open and ‚big‘ vendor transmission systems

Open Transmission and Switching Systems (CL Family)

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Last mile protection during underground building works Two geographically disjointed last miles in Praha PoP Praha CLS 16x16 (IL = 2 dB, MEMS) Last miles meeting point – two Y splitters 50/50

Open Transmission and Switching Systems (CL Family)

CLS in the protection application

CLS16x16

OADM

OADM

DW

DM

DW

DM

PoP Praha

Last miles meeting point

PoP Ústi n. Labem

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We can observe not all open photonic devices have been deployed

Perhaps cost savings on energy consumption, housing space etc. is not so critical (yet)?

Bandwidth hungry applications are not so widespread (yet)?

But some of such devices can offer very useful features Photonic multicast for video transmission (HD, 4k, 8k or even

superior?) For high speeds (10G, 40G or even 100G) CLM used in StarLight, Chicago, without problems

Open photonic systems Can enable early adoption of the new photonic technology in the

production Enable and support experimental applications requested by users or

field experiments on dark fibres Cooperation with FTTx vendors and operators

Open Transmission and Switching Systems (CL Family)

Conclusions I

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So what equipment have been deployed? CLA (EDFA) CLM CLS CLC (especially for 40G GN2 JRA4 tests but tested in CESNET2 and

EF)

CLx can be managed remotely, SW upgrades done remotely too.

CLM and CLS devices include web-based GUI and SW time scheduler.

CLx are manufactured and can be purchased - the vendor is a global company.

Not black boxes manufactured in a garage. Support, guarantee.

Open Transmission and Switching Systems (CL Family)

Conclusions II

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CESNET is ready to support pilot deployments of open photonic devices from CL Family.

Designs and concepts. Theory or paper works.

CESNET can provide details of already deployed projects. Practical aspects and hands-on experience.

The vendor for other works. Installation, maintenance.

Open Transmission and Switching Systems (CL Family)

Conclusions III

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[1] Vojtěch, J. „CzechLight and CzechLight Amplifiers “, In: 17th TF-NGN Zurich, 2005.[2] Petr Holub, Josef Vojtěch, Jan Radil, et. al., „Pure Optical (Photonic) Multicast“, GLIF 2007 Demo, Praha, 2007.[3] Jan Radil, Stanislav Šíma, „ Customized Approaches to Fibre-based E2E Services“, TERENA 1st E2E Workshop, Amsterdam, 2008.[4] Stanislav Šíma, et. al., „ LTTx: Lightpaths to the application, From GOLEs to dispersed end users “, GLIF 2008 Workshop, Seattle, 2008.[5] Josef Vojtěch, Jan Radil, „Transparent all optical switching devices in CESNET“, 25th APAN meeting, Honolulu, 2008.[6] Josef Vojtěch, Stanislav Šíma, Jan Radil, Lada Altmannová, „Dark Fibre Facilities for Research and Experimentation“, 5th TRIDENTCOM, Washington, 2009.

Open Transmission and Switching Systems (CL Family)

References

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Lada Altmanová, Jan Gruntorád, Miroslav Karásek, Michal Krsek, Martin Míchal, Jan Nejman, Václav Novák, Stanislav Šíma

Open Transmission and Switching Systems (CL Family)

Acknowledgement

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Open Transmission and Switching Systems (CL Family)

INTEROP 2009 demonstration with CLM

Source

‚TX side‘

4 laser diodes

CzechLightMulticast

Switch

I1

I2

I3

I4

O1

O2

O3

O4

Camera

‚RX side‘

Management

Time scheduling

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Open Transmission and Switching Systems (CL Family)

Thank you for your attention.