Study of phase sensitive amplifier repeater

2012 Fiscal Year Final Research Report

• Project/Area Number: 22360155
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Communication/Network engineering
• Research Institution: The University of Tokushima
• Principal Investigator: TAKADA Atsushi 徳島大学, 大学院・ソシオテクノサイエンス研究部, 教授 (00548563)
• Co-Investigator(Kenkyū-buntansha): KOGA Masafumi 大分大学, 工学部, 教授 (60448545)
• Project Period (FY): 2010 – 2012
• Keywords: 通信方式(無線、有線、衛星、光、波動)

Research Abstract

Fundamental gain characteristics of optical phase-sensitive amplifier which have input-optical phase dependent gain are clarified, in the case thatsilica optical fiber and quasi-phase matched Lithium Niobate waveguide is applied as a parametric medium. Regenerative repeater spacing is also calculated when the PSAs are adopted as repeater amplifiers in repeated BPSK/QPSK optical fiber transmission system. Power penalty due to optical phase error between pump and input signal light is also clarified. Experiment using optical phase-lock loop circuit for pump phase control is successfully demonstrated for the first time.