Phase synchronization in a diode-laser-pumped Nd:YAG laser coupled with a chaotic oscillator

• Published in: Journal of the Korean Physical Society Vol. 60; no. 3; pp. 322 - 326
• Main Authors: Lee, Dae-Sic, Kim, Guang-Hoon, Kang, Uk, Kim, Chil-Min
• Format: Journal Article
• Language: English
• Published: Seoul The Korean Physical Society 01.02.2012; 한국물리학회
• Subjects: Mathematical and Computational Physics; Particle and Nuclear Physics; Physics; Physics and Astronomy; Theoretical; 물리학; Chaos; Phase synchronication; Diode pumped Nd:YAG laser
• ISSN: 0374-4884; 1976-8524
• DOI: 10.3938/jkps.60.322

We have studied synchronous behaviors between a diode-laser-pumped Nd:YAG laser and an electronically-implemented Rössler oscillator. When the Rössler oscillator is unidirectionally coupled to the Nd:YAG laser, two chaotic systems develops from a non-synchronous state to a phase synchronization state with a π phase shift through a 2 π phase jump state as the coupling strength increases. To verify that the π phase shift is not anti-phase synchronization but phase synchronization(PS) with a π phase shift, we propose two kinds of similarity functions. From the similarity functions, we confirm that the synchronous phenomenon is PS with a π phase shift.