Dynamically reconfigurable characteristics of a double phase conjugate mirror using Sn2P2S6 crystals and their application to optical inter-satellite communication

Kaori Nishimaki, Atsushi Okamoto, Atsushi Shibukawa, Masanori Takabayashi, Akihisa Tomita, Yoshihisa Takayama

Research output: Contribution to journalArticle

1 Citation (Scopus)


A double phase conjugate mirror (DPCM), created by two mutually incoherent beams entering photorefractive nonlinear materials, can generate a phase conjugate beam whose reflectivity may be greater than 100%. Even though the conditions of the incident beams are changed, the DPCM can be dynamically reconfigured by using a Sn2P2S6 crystal with a high response speed. These features of the DPCM are advantageous, particularly in an optical inter-satellite communication system. In particular, use of the phase conjugate beam from the DPCM offers wavefront compensation and amplification in satellite communication. In addition, the dynamically reconfigurable DPCM using a Sn2P2S6 crystal relaxes the acquisition accuracy of the signal beam in the system. In this study, the temporal and spatial operating characteristics of the DPCM using a Sn2P2S6 crystal were first clarified. Next, an inter-satellite system based on the DPCM was proposed, and it was demonstrated that our system significantly improves the tolerance of the acquisition accuracy and tracking time.

Original languageEnglish
Pages (from-to)415-424
Number of pages10
JournalOptical Review
Issue number3
Publication statusPublished - Jan 1 2014
Externally publishedYes



  • SnPS crystal
  • double phase conjugate mirror
  • dynamically reconfigurable device
  • optical inter-satellite communication
  • photorefractive effect

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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