Amplification Characteristics of a Phase-Sensitive Amplifier of a Chirped Optical Pulse


IEICE TRANSACTIONS on Electronics   Vol.E102-C   No.11   pp.818-824
Publication Date: 2019/11/01
Online ISSN: 1745-1353
DOI: 10.1587/transele.2019ECP5005
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.