Why we need optical Why we need optical communication ?communication ?Why we need optical Why we need optical communication ?communication ?

Advantages: A.Weight and size B.Material cost C.information capacity. D.No Electrical connection E.No Electromagnetic Interference F.Better Security

Demand: Broadband

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Product introduceProduct introduceProduct introduceProduct introduce

FiberConnector/adapterPatchcord /pigtailWDM/CouplerAttenuator

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Product introduce: FiberProduct introduce: FiberProduct introduce: FiberProduct introduce: Fiber

Singlemode

Multimode

9/125um50/125um

62.5/125um

9um125um

250um

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Connector/adapter:Connector/adapter:Connector/adapter:Connector/adapter:

Conventional connector: ST, FC, SC, Duplex Angled FC, Angled SC FDDI, ESCON SMA, BICONIC, D4

                                                                                                                                                                                                                                                                                                                                                   

ST SC FC

D4 FDDI

                                                                   

MU

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Connector/AdapterConnector/AdapterConnector/AdapterConnector/Adapter

New trend: Small Form Factor MTP/MPO, FJ, SG (VF-45) LC, MT-RJ Mini-MT, Mini_MAC, SCDC

                                                                                                                                                                                                           

MT-RJ-AMP LC-LucentFrom the left:SCDC, LC, MT-RJ,Duplex SC, Volition Opti-Jack

Volition (VF-45)

New generation connectors– Let the market decide !

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Connector/Adapter: Connector/Adapter: Ferrule polishingFerrule polishingConnector/Adapter: Connector/Adapter: Ferrule polishingFerrule polishing

PC polishing: Physical Contact UPC polishing: Ultra Physical contact APC polishing: Angled Physical contact

Back reflection ( return loss) PC: 40dB UPC: 55dB (Digital , CATV, Telephony system) APC: 65~70dB (CATV, Analog system, reflection sensitive)

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Pathcord/Pigtail:Pathcord/Pigtail:Pathcord/Pigtail:Pathcord/Pigtail:

Singlemode: 9/125 fiber, 900um or 3mm yellow jacket

Multimode :50/125 or 625/125 fiber, 900 or 3mm orange jacket

Simplex: single cable with connector in two ends

Duplex: two cable parallel with connector in two ends.

                                                                                                                            

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WDMWDM-Wavelength Division Multiplexers-Wavelength Division MultiplexersWDMWDM-Wavelength Division Multiplexers-Wavelength Division Multiplexers

1310/1550nm WDM for communications (double the Bandwidth

Application:

WDM for Optical Amplifiers: 980/1550 nm WDM (pump laser :980nm) 1480/1550 nm WDM (pump laser:1550nm)

WDMWDM WDMWDM

1310nm

1550nm

1310nm

1550nm

MUX DEMUX

                                                                                            

Coupler:Coupler:Coupler:Coupler:

Standard coupler: Narrow band ( +/- 10nm) Wavelength-Flattened coupler (+/- 40nm) (Single-window wideband) Wavelength-independent Coupler (+/- 40nm) (Dual-window wideband)

CouplerP1

P4

P2

P3

1310/1550 1310/1550

50%

50%

Coupler: Optical CharacteristicsCoupler: Optical CharacteristicsCoupler: Optical CharacteristicsCoupler: Optical Characteristics

P1

P4

P2

P3

1310/1550 1310/1550

Insertion Loss: IL2= -10 log P2P1

Excess Loss: EL= -10 log

Coupling Ratio:CR2=

Directivity: D= -10 log

Return Loss: BR= -10 log

Uniformity: maximum difference of insertion loss betweenthe output channels

P2+P3 P1 dB

dB

P2P2+P3

dB

P1r

P1rP1 dB

dBP4P1

Coupler

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Attenuator:Attenuator:Attenuator:Attenuator:

Plug type: Attenuated fiber Attenuated fiber: Metal-ion doped fiber. Metal coating mirror .

In-line type: FBTAttenuator Attenuation (dB) Return Loss Mass production Production FlexiblePlug type 1,2,3,10,15,20,25,30 >/= 40dB Good NGIn-line type 1~20 >/= 55dB NG Good

                                                                                                         

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FiberFiber connections Incconnections Inc

The end

Thank you !

The end

Thank you !

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