Experimental investigation on multimode quartz fiber phase conjugation using SBS

Anca Mocofanescu; M. Zamfirescu; Constantin G. Fenic; Aurel Stratan; Tiberiu Visan

doi:10.1117/12.378712

23 February 2000 Experimental investigation on multimode quartz fiber phase conjugation using SBS

Anca Mocofanescu, M. Zamfirescu, Constantin G. Fenic, Aurel Stratan, Tiberiu Visan

Proceedings Volume 4068, SIOEL '99: Sixth Symposium on Optoelectronics; (2000) https://doi.org/10.1117/12.378712
Event: SIOEL: Sixth Symposium of Optoelectronics, 1999, Bucharest, Romania

Abstract

The beam quality of solid-state lasers with high average power can be greatly improved using phase conjugators based on stimulated Brillouin scattering (SBS). The common phase conjugators used until now are liquid or gas cells.Using SBS in glass fibers as phase conjugators the field of applications can be expended. The long interaction length and small cross-sections of the fibers result in an appreciable reduction of SBS threshold and avoid optical breakdown which could happen in liquids and gases at high input energies. Other advantages of glass fiber phase conjugators are harmlessness and easy handling. We have experimentally investigate a phase conjugator base don SBS obtained in an undoped quartz fiber with core diameter of 200 micrometers . The SBS threshold reflectivity and phase conjugation capability were measured with 18 ns pulses at 1.06 micrometers wavelength with different input energies.

Citation Download Citation

Anca Mocofanescu, M. Zamfirescu, Constantin G. Fenic, Aurel Stratan, and Tiberiu Visan "Experimental investigation on multimode quartz fiber phase conjugation using SBS", Proc. SPIE 4068, SIOEL '99: Sixth Symposium on Optoelectronics, (23 February 2000); https://doi.org/10.1117/12.378712

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