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Amplification Characteristics of a Phase-Sensitive Amplifier of a Chirped Optical Pulse
IEICE TRANSACTIONS on Electronics
Publication Date: 2019/11/01
Online ISSN: 1745-1353
Type of Manuscript: PAPER
Category: Lasers, Quantum Electronics
optical nonlinearity, phase-sensitive amplification, optical pulse, chirping,
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Phase-sensitive amplification (PSA) has unique properties, such as the quantum-limited noise figure of 0 dB and the phase clamping effect. This study investigates PSA characteristics when a chirped pulse is incident. The signal gain, the output waveform, and the noise figure for an optical pulse having been chirped through chromatic dispersion or self-phase modulation before amplification are analyzed. The results indicate that the amplification properties for a chirped pulse are different from those of a non-chirped pulse, such that the signal gain is small, the waveform is distorted, and the noise figure is degraded.