Jan Radil, Josef Vojtech, Miloslav Hula

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Open Transmission and Switching Systems (CL
Family)
www.ces.net

• Jan Radil, Josef Vojtech, Miloslav Hula
• josef.vojtech_at_cesnet.cz

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Open Transmission and Switching Systems (CL
Family)
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.
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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 proscons 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 Family
• Important 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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Open Transmission and Switching Systems (CL
Family) Family of Open Photonics Devices I

• 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
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Open Transmission and Switching Systems (CL
Family) Family of Open Photonics Devices II

• 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
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Open Transmission and Switching Systems (CL
Family) Concepts used for networks

• 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

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Open Transmission and Switching Systems (CL
Family) Advantages of these concepts

• 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.

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Open Transmission and Switching Systems (CL
Family)
PNWGP
7609
CAVEwave (2155)
EVL e600
CESNET (trunk 440,441)
CzechLight
6/2
Praha E300
CW 6506
6/6
6/10
6/14
(441)
(445)
(2155)
CW 6506
TX only
RX only
RX only
C-Wave (2155)
RX only
GLIF Mog HD RX
(2155)
O1
I1
O2
CESNET CLM
Brno C6506
O3
IP 10.200.200.200 MAC 101010101010
C-Wave (2155)
O4
(440)
(441)
HD RX
HD TX
StarLight
IP 10.200.200.200 MAC 101010101010
UCSD Calit2

• Combination of
• 10G international lambdas, DWDM
• Open and big vendor transmission systems

CW 6506
6509
e1200
GLIF 2008 CLM Demonstration in Cinegrid demos
HD RX
IP 10.200.200.200 MAC 101010101010
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Open Transmission and Switching Systems (CL
Family) CLS in the protection application

• 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

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Open Transmission and Switching Systems (CL
Family) Conclusions I

• 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

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Open Transmission and Switching Systems (CL
Family) Conclusions II

• 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.

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Open Transmission and Switching Systems (CL
Family) Conclusions III

• 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.

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Open Transmission and Switching Systems (CL
Family) References

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

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Open Transmission and Switching Systems (CL
Family) Acknowledgement

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

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Open Transmission and Switching Systems (CL
Family) INTEROP 2009 demonstration with CLM
CzechLight Multicast 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.