Impact of Laser Phase Noise on Optical Heterodyne Communication Systems

Kazovsky, L.G.

doi:10.1515/joc.1986.7.2.66

“…This problem has received much attention in the recent years. Various performance analyses for different modulation formats and receiver structures exist in the literature [2,3,4,5,6,7]. However, since researchers use different sets of assumptions and approximations in their work, it is difficult to reconcile their results and to agree on the quantitative effect of phase noise on coherent systems.…”

Section: Introductionmentioning

confidence: 99%

Envelope detection of orthogonal signals with phase noise

Azizoglu

¹

,

Humblet

²

1991

J. Lightwave Technol.

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We analyze the performance of receivers which use envelope detection at IF to detect optical signals with orthogonal modulation formats. We obtain exact closedform expressions for the error probability conditioned on the normalized envelope. The only information necessary for obtaining the unconditional error probability is the set of tilted moments of the envelope. We then provide an approximation to this envelope which is not only accurate to the first order in phase noise strength, but also has the same range as the actual random envelope. We use this approximation to obtain the bit error performance of the three receiver models that we consider. We also provide a tight lower bound in closed-form. Finally we extend the analysis to N-ary FSK to observe the improvement due to increased bandwidth use and transmitter/receiver complexity.

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“…Accordingly the statistics of Xk are independent of k. From now on we consider only k = 1 and we omit the subscript. This remark also justifies the fact that we have not added an initial value to the integrals in equation (3).…”

Section: Performance Analysismentioning

confidence: 63%

“…Numerous papers analyze the effect of phase noise when it is modeled as a Wiener process, e.g. the phase noise is the integral of white frequency noise [2], [3], [4], [5], [6], [7], [8], [9]. We consider here a more general model.…”

Section: Introductionmentioning

confidence: 99%

Performance of phase noisy optical systems with frequency stabilization

Humblet

¹

,

Young

²

1992

J. Lightwave Technol.

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Laser phase noise causes a significant performance degradation of coherent optical communication systems. In this paper we analyze its effect for a model more general than usually considered. We evaluate bounds and approximations for the probability of error of binary orthogonal modulation, such as wide deviation Frequency Shift Keying, paying particular attention to the effects of frequency feedback stabilization on system robustness.'The authors gratefully acknowledge support for this research from NSF (grant NCR-8802991), ARO (contract DAAL03-86-K-0171), NEC and DARPA (grant F19628-90-C-0002). J.S. Young is now with Churchill College,

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“…Since no closed form for q(.) is available, this optimization involves evaluating this equation for M 1,2,3,... until the optimum is reached 5 . Equation (48) has the desired form since the density function has the same parameter y for all Al.…”

Section: Resultsmentioning

confidence: 99%

Envelope Detection of Orthogonal Signals with Phase Noise

Azizoglu¹,

Humblet²

1990

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We analyze the performance of receivers which use envelope detection at IF to detect optical signals with orthogonal modulation formats. We obtain exact closedform expressions for the error probability conditioned on the normalized envelope. The only information necessary for obtaining the unconditional error probability is the set of tilted moments of the envelope. We then provide an approximation to this envelope which is not only accurate to the first order in phase noise strength, but also has the same range as the actual random envelope. We use this approximation to obtain the bit error performance of the three receiver models that we consider. We also provide a tight lower bound in closed-form. Finally we extend the analysis to N-ary FSK to observe the improvement due to increased bandwidth use and transmitter/receiver complexity. Report Documentation Page Form Approved OMB No. 0704-0188Public reporting burden for the collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to Washington Headquarters Services, Directorate for Information Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington VA 22202-4302. Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to a penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number.

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Impact of Laser Phase Noise on Optical Heterodyne Communication Systems

Cited by 111 publications

References 27 publications

Envelope detection of orthogonal signals with phase noise

Envelope detection of orthogonal signals with phase noise

Performance of phase noisy optical systems with frequency stabilization

Envelope Detection of Orthogonal Signals with Phase Noise

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