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 WDM/Coupler Attenuator Back to Web
Product introduce: Fiber 50/125um 9/125um 62.5/125um Multimode Singlemode 250um 125um 9um Back to Web
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
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 !
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
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
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
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
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
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
Fiber connections Inc The end Thank you ! Back to Web