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Information processing of systems with optical amplifiers and photon-counting receivers.
Applied Optics
|March 28, 2008
Summary
This study analyzes optical channel performance metrics like channel capacity for weak power signals. Results compare different modulation formats and photon-counting receivers against Gaussian approximations.
Area of Science:
- Optical Communications
- Information Theory
Background:
- Optical channels transmitting weak power signals face performance limitations.
- Accurate analysis of information criteria is crucial for optimizing these systems.
Purpose of the Study:
- To analyze key information criteria for weak power optical channels.
- To evaluate performance across various modulation formats and system configurations.
Main Methods:
- Calculated channel capacity, cutoff rate, and rate distortion.
- Investigated systems with optical amplifiers and photon-counting receivers.
- Compared results with Gaussian approximation of intensity distribution.
Main Results:
- Performance metrics were evaluated for different modulation formats.
- The impact of optical amplifiers and photon-counting receivers was assessed.
- Discrepancies between exact calculations and Gaussian approximation were identified.
Conclusions:
- The study provides a detailed performance analysis of weak power optical channels.
- Photon-counting receivers and specific modulation formats influence channel performance.
- Gaussian approximation may not be sufficient for precise analysis in all scenarios.
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