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Why we need optical communication ?

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Presentation on theme: "Why we need optical communication ?"— Presentation transcript:

1 Why we need optical 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 Back to Web

2 Product introduce Fiber Connector/adapter Patchcord /pigtail
WDM/Coupler Attenuator Back to Web

3 Product introduce: Fiber
50/125um 9/125um 62.5/125um Multimode Singlemode 250um 125um 9um Back to Web

4 Connector/adapter: Conventional connector: Back to Web ST SC FC MU D4
ST, FC, SC, Duplex Angled FC, Angled SC FDDI, ESCON SMA, BICONIC, D4                                                                                                                                                                                                                                                                                                                                                                                                                         ST SC FC FDDI MU D4

5 Connector/Adapter New trend: Small Form Factor Back to Web
MTP/MPO, FJ, SG (VF-45) LC, MT-RJ Mini-MT, Mini_MAC, SCDC                                                                                                                                                                                                             Volition (VF-45) From the left: SCDC, LC, MT-RJ,Duplex SC, Volition Opti-Jack MT-RJ-AMP LC-Lucent New generation connectors– Let the market decide !

6 Connector/Adapter: Ferrule 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) Back to Web

7 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.                                                                                                                              Back to Web

8 WDM-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)                                                                                              MUX DEMUX 1310nm 1310nm WDM WDM 1550nm 1550nm

9 Coupler: Standard coupler: Narrow band ( +/- 10nm)
Wavelength-Flattened coupler (+/- 40nm) (Single-window wideband) Wavelength-independent Coupler (+/- 40nm) (Dual-window wideband) P2 P1 50% Coupler 1310/1550 1310/1550 50% P4 P3

10 Coupler: Optical Characteristics
P1r P1 Coupler 1310/1550 1310/1550 P3 P4 P2+P3 P1 P4 P1 Excess Loss: EL= -10 log dB Return Loss: BR= -10 log dB P2 P1 Insertion Loss: IL2= -10 log dB Uniformity: maximum difference of insertion loss between the output channels P2 P2+P3 Coupling Ratio:CR2= dB P1r P1 Directivity: D= -10 log dB Back to Web

11 Attenuator: Plug type: Attenuated fiber In-line type: FBT Back to Web
Attenuated fiber: Metal-ion doped fiber. Metal coating mirror . In-line type: FBT                                                                                                           Back to Web

12 Fiber connections Inc The end Thank you ! Back to Web

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