Double phase-conjugate mirror: Analysis, demonstration, and applications

Shimon Weiss, Shmuel Sternklar, Baruch Fischer

Research output: Contribution to journalArticlepeer-review

266 Scopus citations


We report on the operation of the double phase-conjugate mirror (DPCM). Two inputs to opposite sides of a photorefractive barium titanate crystal, which may carry different spatial images, are shown to pump the same fourwave mixing process mutually and are self-refracted without any external or internal crystal surface. This results in the phase-conjugate reproduction of the two images simultaneously. This device is analyzed theoretically, and applications in image processing, interferometry, and rotation sensing are discussed. We also demonstrate the operation of a ring laser, using the DPCM, as well as a photorefractive resonator with two facing DPCM’s that can support spatial information in its oscillations.

Original languageEnglish
Pages (from-to)114-116
Number of pages3
JournalOptics Letters
Issue number2
StatePublished - Feb 1987
Externally publishedYes


Dive into the research topics of 'Double phase-conjugate mirror: Analysis, demonstration, and applications'. Together they form a unique fingerprint.

Cite this