Raman

摘要Phase-sensitive amplification is of great research interest owing to its potential in noiseless amplification. One key feature in a phase-sensitive amplifier is the gain extinction ratio defined as the ratio of the maximum to the minimum gains. It quantifies the capability of the amplifier in performing low-noise amplification for high phase-sensitive gain. Considering a phase-sensitive fibre optical parametric amplifier for linear amplification, the gain extinction ratio increases with the phase-insensitive parametric gain achieved from the same pump. In this work, we use backward Raman amplification to increase the phase-insensitive parametric gain, which in turn improves the phase-sensitive operation. Using a 955 mW Raman pump, the gain extinction ratio is increased by 9.2 dB. The improvement in the maximum phase-sensitive gain is 18.7 dB. This scheme can significantly boost the performance of phase-sensitive amplification in a spectral range where the parametric pump is not sufficiently strong but broadband Raman amplification is available.

著者Fu XL, Guo XJ, Shu C

期刊名稱Scientific Reports

出版年份2016

月份2

日期2

卷號6

出版社Nature Publishing Group: Open Access Journals - Option C / Nature Publishing Group

國際標準期刊號2045-2322

語言英式英語

Web of Science 學科類別Multidisciplinary Sciences; Science & Technology - Other Topics