1. Double phase conjugation in copper-doped potassium sodium strontium barium niobate crystals
- Author
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Liangmin Zhang, Guangyin Zhang, Shihong Pan, Wanlin Zhang, Xiaojun Chen, Huanchu Chen, Jianru Han, Jingwen Zhang, and Zongshu Shao
- Subjects
Coupling ,Materials science ,business.industry ,Materials Science (miscellaneous) ,Strontium barium niobate ,Molecular physics ,Industrial and Manufacturing Engineering ,Light scattering ,Ptychography ,chemistry.chemical_compound ,Optics ,chemistry ,Attenuation coefficient ,Light beam ,Business and International Management ,Phase conjugation ,business ,Beam (structure) - Abstract
We show a double phase conjugator with novel crystals of copper-doped potassium sodium strontium barium niobate. The phase conjugation reflectivity can reach 278% and depends on relative input positions of both incident beams. The response time with the input beam power ratio is measured and modeled as a function of input beam power ratio. The formation of the arch coupling loop is analyzed with theoretical simulation results and a positive feedback process is proposed. The influence of a self-pumped phase conjugation process on double phase conjugation fidelity is also discussed. It is necessary to avoid generating self-pumped phase conjugation to prevent the reduction of double phase conjugation fidelity.
- Published
- 1997
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