what’s new in fiber? - · pdf filewhat’s new in fiber? ... speed, reach, cost ......

What’s New in Fiber?

S.E. Region BICSI Meeting July 21, 2016

Georgia Southern University, Statesboro, GA

Guy Swindell, RCDD

[email protected]

Agenda

Review of Fiber Types

Fiber Classifications and Standards

Fiber Selection Considerations

Latest Fiber Offerings

Evolution of Fiber Technology

2

Two Basic Optical Fiber Types

Larger cores and lower wavelengths drive source and system costs down

1. Multimode 2. Single-mode

62.5 micron 50 micron ~8 micron

125 micron

850 nm Operating 1310 - 1625 nm & some 1300nm Wavelengths

3

Modal Dispersion in MMF

Light Signal travels along many paths

Pulse spreading occurs due to Modal Dispersion or Differential Mode Delay (DMD)

Pulse spreading limits Bandwidth

Input Pulse Output Pulse

1 0 1 1 0 ? ? ? ? 1

4

Modal Dispersion / DMD Minimized in OM3 and especially OM4 MM Fiber

Input Pulse Output Pulse

1 0 1 1 0 1 1 0 0 1 0 1 0 1 0 1 0 1 0 1 0

5

Singlemode Fiber

Eliminates modal dispersion. Enables tremendous transmission capacity over very long

distances.

Small core guides only one mode

6

Fiber Classifications & Standards

7

Multimode Fiber Types

8

MM Fiber Type

ISO / IEC 11801 TIA IEC

60793-2-50 ITU-T Overfilled Bandwidth

(850nm, MHz-km)

Effective Modal Bandwidth

(EMB) “Laser Bandwidth”

(850nm, MHz-km)

62.5 / 125 OM1 492AAAA A1b --- 200 ---

50 / 125 50 / 125 50 / 125

OM2 OM3 OM4

492AAAB 492AAAC 492AAAD

A1a.1 A1a.2 A1a.3

G.651.1

500

1500 3500

---

2000 4700


9

MM Fiber Type



(850nm, MHz-km)



(850nm, MHz-km)

62.5 / 125 OM1 492AAAA A1b --- 200 ---

50 / 125 50 / 125 50 / 125

OM2 OM3 OM4


Non-BI / BI

A1a.1a / A1a.1b A1a.2a / A1a.2b A1a.3a / A1a.3b

G.651.1

500

1500 3500

---

2000 4700


10

MM Fiber Type



850nm / 1300nm (MHz-km)



850nm (MHz-km)

62.5 / 125 OM1 492AAAA A1b --- 200 / 500 ---

50 / 125 50 / 125 50 / 125

OM2 OM3 OM4


Non-BI / BI

A1a.1a / A1a.1b A1a.2a / A1a.2b A1a.3a / A1a.3b

G.651.1

500 / 500

1500 / 500 3500 / 500

---

2000 4700

Singlemode Fiber Types

11

SM Fiber Type ITU-T ISO / IEC

11801 TIA IEC 60793-2-50

Legacy G.652.A or G.652.B OS1 492CAAA B1.1

Low Water Peak

G.652.C or G.652.D OS1 or OS2 492CAAB B1.3

Bend-Insensitive

G.657.A1 G.657.A2 G.657.B2 G.657.B3

--- ---

B6_a1 B6_a2 B6_b2 B6_b3

Singlemode Fiber Types (continued)

OSx designations are from ISO/IEC 11801 International Cabling Standard

12

SM Cabled Fiber

Designation

Wavelength (nm)

Max CABLE Loss

(dB/km) Cable Type

Typcial Reach

(meters)

OS1 1310 1383 1550

1.0 --- 1.0

Typically Tight Buffer 2000

OS2 1310 1383 1550

0.4 0.4 0.4

Typically Loose Tube 10,000

Singlemode Fiber Types – Low & Zero Water Peak (G.652.C & D and G.657.Ax)

wavelength (nm) E U

0

0.3

0.6

0.9

1.2

1250 1300 1350 1400 1450 1500 1500 1600

Loss

(dB/

km)

O

1650

L C S

CWDM

Conventional SMF (G.652A or B)

ZWP SMF (G.652D)

LWP SMF (G.652C or D)

Wavelength (nm)

13

Minimum Design Radius

Category A (G.652D Compliant)

Category B (G.652D Compatible)

10 mm G.657.A1

7.5 mm G.657.A2 G.657.B2

5.0 mm G.657.B3

For traditional Longer Reach Applications

For Shorter Reach Applications

(FTTH, MDU, in-building wiring)

14

Singlemode Fiber Types – Bend-Insensitive (G.657.xx)

Latest Fiber Offerings

15

Multimode – WideBand MMF

For use with multiple wavelengths Course Wavelength Division Multiplexing (CWDM) technology

• Commonly used on Singlemode

For Multimode, it will be called SWDM –

Short Wavelength Division Multiplexing

16

Conventional Multimode – One Wavelength (850nm)

λ (850nm)

λ

17

WideBand Multimode – Multiple Wavelengths

λ 850 nm

λ ~880 nm

λ ~910 nm

λ ~940 nm

Mux

λ λ λ λ Demux

18

WideBand MMF 4x the bandwidth of current OM4 fiber

Continue to support legacy 850nm OM4 applications

Support for duplex 100G technology

Will support 8-fiber 400G technology

Standards • Joint task group in TIA TR-42.11 and TR-42.12 developing specification

for WideBand Multimode Fiber − Participation from diverse group, including active device and systems

vendors − TIA specification will be mirrored by IEC 86A

19




10 mm G.657.A1

7.5 mm G.657.A2 G.657.B2

5.0 mm G.657.B3




20

Singlemode – Bend-Insensitive




10 mm G.657.A1

7.5 mm G.657.A2 G.657.B2

5.0 mm G.657.B3




21


“G.657.A3”


ITU-T Fiber Type

Nominal MFD

1550nm Loss @ Bend Radius

Splicing to G.652.D

Fiber

G.652.D 9.2 um 0.05 dB @16 mm Seamless

G.657.A1 8.9 um 0.75 dB @10 mm OK

G.657.A2 8.8 um 0.50 dB @7.5 mm OK

22

Singlemode – Bend-Insensitive Good Bend and Splicing Performance

ITU-T Fiber Type

Nominal MFD

1550nm Loss @ Bend Radius

Splicing to G.652.D

Fiber

G.652.D 9.2 um 0.05 dB @16 mm Seamless

G.657.A1 8.9 um 0.75 dB @10 mm OK

G.657.A2 8.8 um 0.50 dB @7.5 mm OK

G.652.D & G.657.A1

9.2 um 0.75 dB @10 mm Seamless

23

Fiber Selection Considerations

24

MM or SM? Speed, Reach, Cost…

Up to 10G (Enterprise & Campus Backbones, “Simple” Data Centers)

• Multimode up to 600m1 (~2000 ft) − OM3 to 300m − OM4 to 400m

40G & 100G (Data Centers, High Performance Computing)

• Multimode up to 200m1 (~650 ft) − OM3 to 100m − OM4 to 150m

400G (Mega Data Centers, High End Computing Centers)

• Multimode up to 100m2 (300+ ft) • Extended reach options likely

25

1 Engineered Link using OM4+ MMF

2 IEEE Objective

MM vs. SM Cost Considerations

Cost References: www.sanspot.com www.cdw.com

Oct. 2015

PMD Fiber Type Relative

Transceiver Cost

Power Consumption (Watts, max)

10GBASE-SR MM 1 1

10GBASE-LR SM 2 1 - 1.5

40GBASE-SR4 MM 3 1.5

40GBASE-LR4 SM 10 3.5

100GBASE-SR10 MM 20 3.5

100GBASE-LR4 SM 80 5 - 8

Power Consumption References: www.finisar.com www.avagotech.com

Oct. 2015

MM continues to be more cost effective than SM for short reach Cost of optics (transceivers) dominates link. Power Consumption of MM optics is less than SM.

26

http://www.sanspot.com/

http://www.cdw.com/

http://www.sanspot.com/

http://www.cdw.com/

Which Multimode Should I Use? - 62.5 um? (OM1) - 50 um? (OM2, OM3, OM4…)

Data Center and Cabling Standards are dropping OM1 62.5um fiber, and even OM2 50um, calling out Laser-Optimized OM3 & OM4 only, with “OM4 preferred”.

OM3 or OM4 required for reasonable LAN / Campus 10G backbone distances.

Only OM3 and OM4 can be used for 40G and 100G.

Mixing different types or grades of multimode not recommended, but technically feasible if absolutely necessary.

• Can mix 50um and 62.5um in a system when separated by active electronics.

• If connected together directly, you may incur large one-way connection loss.

• Overall reach of link de-rated based on lesser bandwidth.

27

Selecting Multimode Fiber for Declining Loss Budgets

Increasingly tight system attenuation requirements

1.5 dB for 40/100 Gb/s Ethernet on OM4 fiber!

28

Ferrule

Improved Glass Geometry Specs provides better core-to-core alignment for minimal connection loss

Optical Fiber

Fiber Core

Better matching of NA

Smaller gap between

ferrule and fiber

Core better centered

29

Evolution of Fiber Technology

30

IP Traffic Growth

Global IP traffic will grow by 3x over the next 5 years.

Over 70% of all traffic will come from non-PC devices by 2020.

The number of devices connected to IP networks will be 3x the global population in 2020.

Broadband speeds will nearly double by 2020.

Consumer VoD traffic will nearly double by 2020.

Internet video to TV grew 50 percent in 2015.

Virtual reality traffic quadrupled in 2015.

Cisco Visual Networking Index: Forecast and Methodology, 2015-2020 June 1, 2016

31

IP Traffic Growth

“Cisco Visual Networking Index (VNI): Forecast and Methodology, 2014-2019"

May 27, 2015

32

Major Internet Applications Growth ( Last 3 Years )

Facebook1

Number of Users: 10-13% yearly growth

Netflix2

Members: 24% yearly growth

Revenues: Avg 5.6% quarterly growth (7.4% 1Q2016)

YouTube3

1+ billion users

50% year-over-year increase in watch time 3 straight years.

33

1 http://newsroom.fb.com/Key-Facts 2 http://ir.netflix.com/index.cfm 3 https://www.youtube.com/yt/press/statistics.html

Evolution of Ethernet Speeds

34

“The 2015 Ethernet Roadmap”, Ethernet Alliance, March 2015

Multimode Fiber Options and Reaches – CURRENT (per IEEE 802.3 Ethernet Standard)

Data Rate PMD OM3

50 µm OM4

50 µm OM1

62.5 µm OM2

50 µm

10G 10GBASE-SR (1f x 10G) 300m 400m 33m 82m

40G 40GBASE-SR4 (4f x 10G) 100m 150m --- ---

100G 100GBASE-SR10 (10f x 10G) 100GBASE-SR4 (4f x 25G)

100m 70m

150m 100m

--- ---

35

Multimode Fiber Options and Reaches – CURRENT & FUTURE

Data Rate PMD OM3

50 µm OM4

50 µm

10G 10GBASE-SR (1f x 10G) 300m 400m

25G (in process)

25GBASE-SR (1f x 25G) At least 100m

40G 40GBASE-SR4 (4f x 10G) 100m 150m

50G (in process)

50GBASE-SR (1f x 50G) At least 100m

100G

100GBASE-SR10 (10f x 10G) 100GBASE-SR4 (4f x 25G)

100m 70m

150m 100m

100GBASE-SR2 (2f x 50G) At least 100m

200G (in process)


400G (in process)


400G (future)

4f x 4λ x 25G At least 100m 36

Singlemode Fiber Options and Reaches - CURRENT (per IEEE 802.3 Ethernet Standard)

Data Rate PMD Reach

10G 10GBASE-LR (1f x 10G) 10GBASE-ER (1f x 10G) 10GBASE-ZR* (1f x 10G)

10 km 40 km 80 km

40G 40GBASE-LR4 (4λ x 10G) 40GBASE-ER4 (4λ x 10G)

10 km 40 km


10 km 40 km

* Not specified as part of IEEE 802.3 Std

37

Singlemode Fiber Options and Reaches – CURRENT & FUTURE

Data Rate PMD Reach

10G 10GBASE-LR (1f x 10G) 10GBASE-ER (1f x 10G) 10GBASE-ZR* (1f x 10G)

10 km 40 km 80 km

25G (in process)

25GBASE-LR4 (1f x 25G) 25GBASE-ER4 (1f x 25G)

10 km 40 km


10 km 40 km

50G (in process)

50GBASE-FR4 (1f x 50G) 2 km

* Not specified as part of IEEE 802.3 Std

38

Continued…

Singlemode Fiber Options and Reaches – CURRENT & FUTURE (Continued)

Data Rate PMD Reach

100G

100GBASE-LR4 (4λ x 25G) 100GBASE-ER4 (4λ x 25G)

10 km 40 km

100GBASE-DR2 (2f x 50G) 100GBASE-FR2 (2λ x 50G)

500 m 2 km

200G (in process)

200GBASE-DR4 (4f x 50G) 200GBASE-FR4 (4λ x 50G) 200GBASE-LR4 (4λ x 50G)

500 m 2 km 10 km

400G (in process)

400GBASE-DR4 (4f x 100G) 400GBASE-FR8 (8λ x 50G) 400GBASE-LR8 (8λ x 50G)

500 m 2 km 10 km

39

A move toward 16 and/or 8 fiber units (in addition to 12)

Ethernet transmission speeds are moving from 10G per lane to 25G per lane to support higher data rates.

Likely upgrade paths for multimode fiber results in units of 4 fibers: • 40G ÷ 10G per fiber = 4 fibers • 100G ÷ 25G per fiber = 4 fibers • 400G ÷ 25G per fiber = 16 fibers • 400G ÷ 25G per wavelength per fiber = 4 fibers

8 / 16 fiber units may work better than 12 fiber units in supporting full fiber utilization.

Discussions in TIA to support: • 16-pin MPO connector (TR 42.13) • Polarity descriptions that cover n-number of fiber units (TR 42.11) • 4 new fiber colors to support 16-fiber ribbons / bundles (TR 42.12)

40

Thank you…..

41

what’s new in fiber? - · pdf filewhat’s new in fiber? ... speed, reach, cost ......

Documents