| Rao Lan,Yu Chong-xiu,Shen Xiang-wei,Sang Xin-zhu,Yuan Jin-hui,Zeng Xiao-fang,Xin Xiang-jun.Investigation on gain characteristics in non-degenerate cascaded phase sensitive parametric amplifiers[J].Optoelectronics Letters,2012,8(3):172-175 |
| Investigation on gain characteristics in non-degenerate cascaded phase sensitive parametric amplifiers |
| Author Name | Affiliation | | Rao Lan | State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University,
Changchun 130012, China | | Yu Chong-xiu | State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University,
Changchun 130012, China | | Shen Xiang-wei | State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University,
Changchun 130012, China | | Sang Xin-zhu | State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University,
Changchun 130012, China | | Yuan Jin-hui | State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University,
Changchun 130012, China | | Zeng Xiao-fang | State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun
130012, China | | Xin Xiang-jun | State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University,
Changchun 130012, China |
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| Abstract: |
| We theoretically and experimentally show the impact of the ratio between the signal and idler generated from the PIA part
on the gain characteristics in the continuous wave (CW) pump non-degenerate cascaded phase-sensitive fiber optical parametric
amplifier (PS-FOPA). The results show that the length of highly nonlinear fiber (HNLF) used for generating the idler can cause
the variation of power ratio between the idler and signal, which significantly affects the gain characteristics of the PS-FOPA
under the small signal gain condition. To obtain high gain, it is better to choose long HNLF to generate idler. In our experiment,
5.5 dB gain and 18 nm bandwidth (on/off gain>10 dBm) in PS-FOPA can be achieved when 300 m-long HNLF instead of 200 m-long
HNLF is used in PIA. |
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| This work has been supported by the National Basic Research Program of China (Nos.2010CB327605 and 2010CB328300), and the Specialized
Research Fund for the Young Scholars Program of Beijing University of Posts and Telecommunications (Nos.2011RC0309 and 2011RC008 |
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