Optical Fiber Cables. The first optical link 1880: Alexander Graham Bell developed his “Photo...

Optical Fiber Cables


The first optical link 1880:

Alexander Graham Bell developed his “Photo phone”


Optical FibersMedium to guide light FLEXIBLE

d1 d2 d3

Core8 µm to62.5 µm

Cladding125 µm

Coating 250 µm


Optical Fibers Single-Mode Fibers

Core diameter 9 µm, so there is only place for one single mode (light beam) minimum attenuation and highest bandwidth.

Dispersion is the spreading of a light pulse as it travels down a fiber. (Chromatic and Material dispersion)

Bandwidth is the amount of information a fiber can carry so that every pulse is distinguished by the receiver at the end.

Single-mode9/125

t t


Optical Fibers Multi-Mode Fibers

Core diameter 50 or 62.5 µm, so there is space for multiple modes adequate attenuation and bandwidth for short haul applications.

Dispersion is the spreading of a light pulse as it travels down a fiber (Chromatic and Modal dispersion).

Bandwidth is the amount of information a fiber can carry so that every pulse is distinguished by the receiver at the end.

Multi-modeGraded Index50/12562.5/125

t t


Life Time Attenuation spectrum of optical fiber


Selection of Optical Fiber Cables Fiber types

What fiber types are applied in optical transmission systems?


Selection of Optical Fiber Cables Fiber types

In general multimode fiber continues to be the most cost-effective choice for enterprise applications up to 550 meters.

Single mode fiber is best used for distances exceeding 550 meters.

What fiber types are applied in optical transmission systems?


Selection of Optical Fiber Cables Optical fiber types

Single Mode (1310 – 1625 nm) SM9-OS1 [8] G652-D (Zero Waterpeak)

[7] G655 (NZDF, long distance, Low waterpeak)[A] G657A (Zero Waterpeak, Flexfiber)

Multi Mode (850/1310nm) MM50-OM2 [5] Bandwidth 500/500 MHz.km

1 GbE Link Length: 600/600 m10 GbE LL: 82 m (at 850 nm)

[2] Bandwidth 600/1200 MHz.km1 GbE Link Length: 600/600 m10 GbE LL: 82 m (at 850 nm)

MM50-OM3 [3] Bandwidth 1500/500 MHz.km1 GbE Link Length: 900/550 m 10GbE LL: 300 m (at 850 nm)

MM62.5-OM1 [1] Bandwidth 200/600 MHz.km1 GbE Link Length: 300/550 m 10GbE LL: 33 m (at 850 nm)


Selection of Optical Fiber Cables Loose tubes (jelly filled) construction

Deployment environment Indoor

Flame & Fire performance Halogen free

Indoor & Outdoor Halogen free Temperature Water ingress resistance UV radiation Mechanical forces Flame & Fire performance

Outdoor Temperature Water ingress resistance UV radiation Mechanical forces


Selection of Optical Fiber Cables Indoor: Tight buffered fiber constructions

In building and data center backbones, horizontal applications, patch cords and equipment cables

Distribution / mini-breakout

Breakout Patchcords


Selection of Optical Fiber CablesOutdoor: Loose tubes (jelly filled) construction

campus backbone applications Central Loose Tube Multi Loose Tube


Selection of Optical Fiber Cables Construction

Indoor & Outdoor (Universal) cables:

Both Loose Tube and Tight Buffered fiber constructions, but always Halogen Free materials


Selection of Optical Fiber Cables Construction: Halogen free ?

Halogen free material does not contain: Chloride, Fluoride, Bromide and Iodide

Advantages in case of fire: Less poisonous gases

(PVC generates hydrochloric acid) No release of caustic acids Less impairment to vision

Legend: FRNC = Flame Retardant Non Corrosive LSZH = Low Smoke Zero halogen LSNH = Low Smoke Non Halogen


Selection of Optical Fiber Cables Construction

Halogen free Jacket:

a unique selling point – why? Suitable for outdoor application Suitable for direct burial A good resistance to UV light

(in compliance with ISO 4892-2) Jacket is both FRNC and LSNH

FRNC = Flame-Retardant, Non Corrosive

LSNH = Low Smoke, Non Halogen


Selection of Optical Fiber Cables Summary

First Choice Fiber type

Second Choice Construction:

Outdoor, Indoor or Out-& Indoor OF cables Metal-free or metallic? Which tensile strength and crush resistance ? Rodent protection?


BELDEN OFC portfolio 2008 European Part Number

Smart P/N position1 G (Glass)2 environment3 type4 construction5 fiber type6 diameter / fiber count7 fiber count8 .9 color

10 color11 length12 length13 length14 length

G U S A 8 1 2 . 0 0 2 1 0 0

1 2 3 4 5 6 7 8 9 10 11 12 13 14

Example:


BELDEN OFC portfolio 2008Indoor & Indoor/Outdoor – Buffered fibers

1 2 3 4

G I Indoor OPigtail /

Buffered fiberT Tight buffer

U Universal P Patchcord SSemi-Tight

buffer

MMobile / Tactical

M Mini-Breakout

X Mini-Breakout + RP

B Breakout

T Tactical



Pigtail 3rd position O GIOS, GIOT

Patchcords 3rd position P GIPS, GIPT



Patch cords Simplex

GIPSxA1, GIPTxA1 1.6mm GIPSxB1, GIPTxB1 1.8mm GIPSxC1, GIPTxC1 2.0mm GIPSxD1, GIPTxD1 2.4mm GIPSxE1, GIPTxE1 2.8mm GIPSxF1, GIPTxF1 3.0mm GIPSxH1, GIPTxH1 2.1mm

Duplex GIPSxy2, GIPTxy2 y for different diameters

Heavy Duplex GIPSxyH, GIPTxyH y for different diameters

x for different fiber types

Inner jacket

Tightbufferedfiber

Outer jacket

Aramidstrength

elements



Distribution / mini-breakout 3rd position M GIMS, GIMT GUMS, GUMT GUXT



Breakout 3rd position B GIBT



Tactical / Mobile 3rd position M or T GMMT GMTT


1 2 3 4

G O Outdoor Dry cable S Standard RP A Type 12

U Universal Dry cable R Improved RP B Type 24

C CST single jacket

D CST double jacket

W Steel Wire armor

F FRP armor

BELDEN OFC portfolio 2008Indoor & Indoor/Outdoor – Central Loose Tube



Type 12 max 12 fibers GOSA, GUSA standard Rodent Protection GORA, GURA improved Rodent Protection GOWA, GUWA Steel Wire Armored GODA, GUDA Corrugated Steel Tape (dj)

O Outdoor

U Universal (Indoor/Outdoor)


Type 24 max 24 fibers GOSB, GUSB standard Rodent Protection GORB, GURB improved Rodent Protection GOWB, GUWB Steel Wire Armored GOCB, GUCB Corrugated Steel Tape (single

jacket) GODB, GUDB Corrugated Steel Tape (double

jacket) GOFB, GUFB Fiber Reinforced Plastic Armored

O Outdoor

U Universal (Indoor/Outdoor)



1 2 3 4

G B Outdoor Dry core AAramide strength members

G Type 36

C Universal Dry core R Improved RP D Type 72

DOutdoor Filled core

D CST double jacket E Type 96

EUniversal Filled core

F Type 144

M Type 216

BELDEN OFC portfolio 2008Indoor & Indoor/Outdoor – Multi Loose Tube



Type 36 6 tubes with max 6 fibers GBAG, GCAG, GDAG, GEAG Aramid strength

members GBRG, GCRG, GDRG, GERG improved Rodent

Protection GBDG, GCDG, GDDG, GEDG Corrugated Steel Tape

Second position B Outdoor, Dry core C Universal, Dry core D Outdoor, Filled core E Universal, Filled core



Type 72 6 tubes with max 12 fibers GBxD, GCxD, GDxD, GExD x for A, R, D

Type 96 8 tubes with max 12 fibers GBxE, GCxE, GDxE, GExE x for A, R, D

Type 144 12 tubes with max 12 fibers GBxF, GCxF, GDxF, GExF x for A, R, D

Type 216 18 tubes with max 12 fibers GBxM, GCxM, GDxM, GExM x for A, R, D



Aerial cables with messenger (span 50m) Type 36 6 tubes with max 6 fibers

GASC

Steel Wire Armored Type 48 6 tubes with max 8 fibers

GOWC, GUWC


BELDEN OFC portfolio 2008Outdoor & Indoor/Outdoor – Multi Loose Tube

1 Red

2 Green

3 - 18 White

Color CodingTubes


BELDEN OFC portfolio 2008 Specials

Private labeling, non standard colors, non-standard cable constructions (e.g. improved pulling force)

Different color coding for fibers/tubes Non-standard fiber-types (e.g. G.655, G657B) Mixed-fiber cables Non-standard delivery lengths Intex/Outdoor Breakout cables (GUBT, GOBT) APF Duplex cable (APF= All Plastic Fiber) Breakout Kit cable (no fiber)


BELDEN OFC portfolio 2008 Mohawk USA

Products that need UL approval (in case these are not produced in Europe)

PVC products Aluminium Interlock Armoring

We prefer European production whenever possible.

Optical Fiber Cables. The first optical link 1880: Alexander Graham Bell developed his “Photo...

Documents

Transcript of Optical Fiber Cables. The first optical link 1880: Alexander Graham Bell developed his “Photo...