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Vladimir Chernyak1, Michael Chertkov, Igor Kolokolov
1Corning, Inc., SP-DV-02-8, Corning, New York 14831, USA.
Optics Letters
|December 3, 2003
Summary
Fiber birefringence significantly impacts bit-error rate (BER) in optical systems. Averaging over disorder reveals extended BER tails, highlighting risks from amplifier noise and detection methods.
Area of Science:
- Optical communications
- Photonics
- Telecommunication systems
Background:
- Optical fiber systems are susceptible to noise, affecting signal integrity.
- Fiber birefringence can introduce signal degradation and increase bit-error rates (BER).
- Understanding noise effects is crucial for reliable optical data transmission.
Purpose of the Study:
- To investigate the impact of fiber birefringence on BER in linear optical systems.
- To analyze the probability-distribution function (PDF) of BER under birefringent disorder.
- To examine how pulse detection parameters influence BER performance.
Main Methods:
- Theoretical analysis of BER in a linear optical fiber system.
- Calculation of the PDF of BER by averaging over birefringent disorder realizations.
- Simulation and analysis of BER dependence on clock setting and filtering procedures.
Main Results:
- Fiber birefringence dependence of BER was quantified.
- The PDF of BER exhibits an extended tail due to birefringent disorder.
- Anomalously large BER values were observed, linked to the extended tail.
- BER tail dependence on pulse detection details was analyzed.
Conclusions:
- Fiber birefringence is a critical factor influencing BER in optical telecommunication systems.
- The presence of an extended BER tail indicates a higher probability of significant errors.
- Optimizing pulse detection methods is essential to mitigate BER issues caused by birefringence and noise.