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Why we need optical communication ?

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. Product introduce. Fiber Connector/adapter Patchcord /pigtail

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Why we need optical communication ?

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  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: Back to Web • Conventional connector: • ST, FC, SC, Duplex • Angled FC, Angled SC • FDDI, ESCON • SMA, BICONIC, D4 SC FC ST FDDI MU D4

  5. Back to Web Connector/Adapter • New trend: Small Form Factor • 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 P2 P1r P1 Coupler 1310/1550 1310/1550 P3 P4 P2+P3 P1 P4 P1 dB Excess Loss: EL= -10 log 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 • Attenuated fiber: Metal-ion doped fiber. • Metal coating mirror . • In-line type: FBT Back to Web

  12. Fiberconnections Inc • The end • Thank you ! Back to Web

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