Single-beam phase conjugation for lasers phase locking and image formation

Nickolai V. Kukhtarev; Tatiana Kukhtareva; Michael J. Curley; Gregory Stargell; Sergey S. Sarkisov

doi:10.1117/12.801264

25 August 2008 Single-beam phase conjugation for lasers phase locking and image formation

Nickolai V. Kukhtarev, Tatiana Kukhtareva, Michael J. Curley, Gregory Stargell, Sergey S. Sarkisov

Proceedings Volume 7056, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications II; 70560G (2008) https://doi.org/10.1117/12.801264
Event: Photonic Devices + Applications, 2008, San Diego, California, United States

Abstract

Single-beam phase conjugation (self-phase conjugation, or SPC) was observed in the ferroelectric crystal LiNbO₃:Fe using CW HeNe laser (wavelength 632 nm power 10-36 mW). Effective "out/in" reflection coefficient of phase conjugation (defined as the ratio the output phase-conjugated beam to the input laser beam measured before optical elements) was about 30%. For some crystals efficient phase conjugation was followed by the simultaneous generation of Fabry-Perot modes. Phase locking of two HeNe lasers and imaging of the amplitude objects with the help of self-phase conjugation was demonstrated. Appearances of additional beams (in transmission and reflection) have some analogy with the predicted behavior of the "negative-index materials".

Citation Download Citation

Nickolai V. Kukhtarev, Tatiana Kukhtareva, Michael J. Curley, Gregory Stargell, and Sergey S. Sarkisov "Single-beam phase conjugation for lasers phase locking and image formation", Proc. SPIE 7056, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications II, 70560G (25 August 2008); https://doi.org/10.1117/12.801264

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