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Quasi-light Storage for Optical Data Packets
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Published on: February 6, 2014

Bit-rate-variable and order-switchable optical multiplexing of high-speed pseudorandom bit sequence using optical

Xiaoxia Wu1, Jian Wang, Omer F Yilmaz

  • 1Department of Electrical Engineering-Systems, University of Southern California, Los Angeles, California 90089, USA. xiaoxia@usc.edu

Optics Letters
|September 18, 2010
PubMed
Summary

This study demonstrates high-speed optical pseudorandom bit sequence (PRBS) multiplexing with tunable bit rates and switchable orders. The novel method achieves flexible data transmission for advanced optical communication systems.

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Area of Science:

  • Optical communications
  • Signal processing

Background:

  • High-speed optical data transmission is crucial for modern networks.
  • Pseudorandom bit sequence (PRBS) generation and multiplexing are key techniques.
  • Achieving tunable bit rates and switchable orders in PRBS multiplexing presents a challenge.

Purpose of the Study:

  • To experimentally demonstrate high-speed optical PRBS multiplexing.
  • To achieve coarse and fine bit-rate tuning capabilities.
  • To enable switchable PRBS orders using optical delays.

Main Methods:

  • Utilized optical delays for PRBS order switching.
  • Employed conversion/dispersion-based continuously tunable optical delay for bit-rate tuning.
  • Demonstrated multiplexing at 80 Gbit/s and 160 Gbit/s.
  • Measured RF spectra to confirm PRBS characteristics.

Main Results:

  • Achieved 7% bit-rate tunability (80-85.6 Gbit/s and 160-171.2 Gbit/s).
  • Successfully switched PRBS orders for 2(7)-1 and 2(15)-1 sequences.
  • Demonstrated a spectral suppression ratio of >30 dB post-multiplexing.

Conclusions:

  • The proposed method enables flexible and high-speed optical PRBS multiplexing.
  • The demonstrated tunability and switchability are valuable for advanced optical networks.
  • This technique offers a robust solution for dynamic data transmission requirements.