Typical Optical Link Power Budget Actual Power Optical

Typical Optical Link Power Budget: Actual Power Optical Power Level Minimum optical power required by the receiver 0. 1µW -40 d. Bm Source output optical power 1 m. W 0 d. Bm Total operating budget (optical power) 40 SNR voltage ratio required in the receiver is 36 d. B. The equivalent optical power ratio is* 18 d. B Remaining optical power for link 22 d. B Link optical power losses: Cable 15 d. B Connectors 3 d. B Couplings 2 d. B Total 20 d. B Excess Budget 2 d. B

Typical Optical Link Power Budget:

Specifications For Fiber Optic Networks Here is a listing of many fiber optic LANs and links available in the last 20 years, with basic operational specs. NA = Not Applicable NS = Not Specified Most LANs and links not specified to run on SM fiber have media converters available to allow them to run on SM fiber.

Max distance (m) for fiber type Application 10 Base-F FOIRL Link Margin (d. B) for fiber type Wavelength 850 62. 5 50 SM 2000 NS 62. 5 50 SM 12. 5 7. 8 NS NS T oken Ring 4/16 850 2000 NS 13 8. 3 NS Demand Priority (100 VG-Any. LAN) 850 500 NS 7. 5 2. 8 NS Demand Priority (100 VG-Any. LAN) 1300 2000 NS 7. 0 2. 3 NS 100 Base-FX (Fast Ethernet) 1300 2000 NS 11 6. 3 NS 300 NS 4. 0 NS 100 Base-SX 850 FDDI 1300 2000 40000 11. 0 6. 3 1032 FDDI (low cost) 1300 500 NA 7. 0 2. 3 NA

Application Wavelength Max distance (m) for fiber type 62. 5 50 Link Margin (d. B) for fiber type SM ATM 52 1300 3000 15000 ATM 155 1300 2000 15000 ATM 155 850(laser) 1000 ATM 622 1300 500 ATM 622 850(laser) Fibre Channel 266 1300 Fibre Channel 266 850(laser) Fibre Channel 1062 62. 5 SM 5. 3 7 -12 10 5. 3 7 -12 NA 7. 2 NA 500 15000 6. 0 1. 3 7 -12 300 NA 4. 0 NA 1500 10000 6. 0 5. 5 6 -14 700 2000 NA 12. 0 NA 850(laser) 300 500 NA 4. 0 NA Fibre Channel 1062 1300 NA NA 10000 NA NA 6 -14 1000 Base-SX 850(laser) 550 NA 3. 2 3. 9 NA 1000 Base-LX 1300 550 5000 4. 0 3. 5 4. 7 3000 NS 20000 11 NS 16 ESCON 1300 220 10 50