1 / 18

16.711 Lecture 8 Optical Fiber Amplifier – noise and BER

16.711 Lecture 8 Optical Fiber Amplifier – noise and BER. Last lecture. Introduction to Fiber Optical Amplifier – types and applications Erbium-doped fiber amplifier (EDFA) External pumping and amplifier gain Power-conversion efficiency and gain profile.

Mercy
Download Presentation

16.711 Lecture 8 Optical Fiber Amplifier – noise and BER

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. 16.711 Lecture 8 Optical Fiber Amplifier – noise and BER Last lecture • Introduction to Fiber Optical Amplifier – types and applications • Erbium-doped fiber amplifier (EDFA) • External pumping and amplifier gain • Power-conversion efficiency and gain profile

  2. 16.711 Lecture 8 Optical Fiber Amplifier – noise and BER Today • Amplifier Noise • OSNR and BER • System Applications

  3. is the distribution function. is number of optical modes at v. 16.711 Lecture 8 Optical Fiber Amplifier – noise and BER Einstein’s A and B coefficients

  4. is the spontaneous factor. 16.711 Lecture 8 Optical Fiber Amplifier – noise and BER Noise Power

  5. 16.711 Lecture 8 Optical Fiber Amplifier – noise and BER Amplified spontaneous noise Noise Power spectral density: Total ASE power: Total power:

  6. 16.711 Lecture 8 Optical Fiber Amplifier – noise and BER Receiver noise Total photo-detector current: R is the resistance of the detector load resistor. Total ASE power:

  7. 16.711 Lecture 8 Optical Fiber Amplifier – noise and BER Receiver noise Total photo-detector current:

  8. 16.711 Lecture 8 Optical Fiber Amplifier – noise and BER Gain and Noise Figure Total photo-detector current:

  9. External control Electronics Detector 980 pump EDF Output Input 5%Tap WDM 16.711 Lecture 8 Optical Fiber Amplifier – noise and BER Amplifier System Noise figure (NF)

  10. 16.711 Lecture 8 Optical Fiber Amplifier – noise and BER BER calculation: Quantum limit detection, Poisson’s equation: Gaussian Noise Statistics :

  11. 16.711 Lecture 8 Optical Fiber Amplifier – noise and BER BER calculation: • OSNR =10dB for 2.5GBit/s • OSNR =15dB for 10GBit/s

  12. 16.711 Lecture 8 Optical Fiber Amplifier – noise and BER PreAmp:

  13. 16.711 Lecture 8 Optical Fiber Amplifier – noise and BER In-line Amp:

  14. 16.711 Lecture 8 Optical Fiber Amplifier – noise and BER Amplifier Chain:

  15. 16.711 Lecture 8 Optical Fiber Amplifier – noise and BER Amplifier Chain:

  16. 16.711 Lecture 8 Optical Fiber Amplifier – noise and BER Amplifier Chain:

  17. 16.711 Lecture 8 Optical Fiber Amplifier – noise and BER Amplifier Chain:

  18. 16.711 Lecture 8 Optical Fiber Amplifier – noise and BER Amplifier Chain:

More Related