History

Receiver and transmitter IC design for high-speed optical fiber communications

Description
We will examine some practical aspects of receiver and transmitter IC design for multi-gigabit-per-second fiber optic systems. In particular we will discuss the design of transimpedance amplifiers, limiting amplifiers, laser and modulator drivers.
Categories
Published
of 70
All materials on our website are shared by users. If you have any questions about copyright issues, please report us to resolve them. We are always happy to assist you.
Related Documents
Share
Transcript
  Receiver and transmitter IC design for high speed optical fiber communicationsCCIC-2001Ed. Session 3-2May 6, 2001Hans Ransijn - Agere Systems  May 6, 2001H. Ransijn - CICC2001 - Ed. Session 3-22 Overview  Receivers•sensitivity ISI, noise,bandwidth, group delay•photo-detectors•pre-amp configurations•noise analysis —CE/CS ABCD params—source transformation—eq. noise conductance •example: 10 Gb/s TIA —eq. input noise current—weighted noise current •extending dynamic range —remove avg. detector current  Transmitters•semiconductor laser —characteristics—laser transmitter •Mach-Zehnder modulator —characteristics—M-Z transmitter—M-Z bias control •electro-absorption modulator —EAM characteristics—EML transmitter—pulse width control •example: 10 Gb/s driver withactive output match  May 6, 2001H. Ransijn - CICC2001 - Ed. Session 3-23 Receivers  May 6, 2001H. Ransijn - CICC2001 - Ed. Session 3-24 Sensitivity, SNR, BER, Extinction Ratio - 1 errorssamplingpoint σσσσ 0 σσσσ 1 I 0 I 1 SNR: 0101 σ σ   ++++−−−−====  I I Q R I I P P  P  22 0101  ++++====++++≡≡≡≡ Sensitivity: 11 / 2 01  ++++−−−−⋅⋅⋅⋅++++==== er er R P Q σ σ  then:Extinction Ratio: 01 P P er   ==== Decision circuit input eye  May 6, 2001H. Ransijn - CICC2001 - Ed. Session 3-25 Sensitivity, SNR, BER, Extinction ratio - 2 3 4 5 6 7 8 910 -1 10 -2 10 -3 10 -4 10 -5 10 -6 10 -7 10 -8 10 -9 10 -10 10 -11 10 -12 21 10 Q    B   E   R -30 -29 -28 -27 -26 -25 -24 -23 -22 -21 -20 Optical Power (dBm)               −−−−≈≈≈≈              ==== 2exp212 221  QQQerfc BER  π  Bit Error Rate: assumptions : 30)log(10)log(10 ,)(  ++++⋅⋅⋅⋅⋅⋅⋅⋅++++⋅⋅⋅⋅====  R I QP  eqndBm rmseqn  AI   µ  1 ,  ==== W  AR   / 95.0 ==== )55.1(  m  µ λ   ====
Search
Tags
Related Search
We Need Your Support
Thank you for visiting our website and your interest in our free products and services. We are nonprofit website to share and download documents. To the running of this website, we need your help to support us.

Thanks to everyone for your continued support.

No, Thanks
SAVE OUR EARTH

We need your sign to support Project to invent "SMART AND CONTROLLABLE REFLECTIVE BALLOONS" to cover the Sun and Save Our Earth.

More details...

Sign Now!

We are very appreciated for your Prompt Action!

x