Korean Journal of Optics and Photonics (한국광학회지)

Optical Society of Korea (한국광학회)
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Instability of the output intensity of Nd:YAG ring laser with the frequency detuning

고리형 Nd:YAG 레이저에서 진동수 어긋남에 의한 출력세기의 불안정성

  • Published : 1997.06.01
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Abstract

We analyze the intensity characteristics of the output beams of the ring laser, in which only one mode is generated in each direction, within the neoclassical model by using the Maxwell-Bloch equation. Considering the Nd:YAG crystal as a gain medium, we investigate the stability and the modulation of the output beam intensity as the pumping rate, the relaxation or the decay rate, and the frequency detuning vary, upon taking into account the effect of the beam in one beam in one direction onto the beam in the other direction. In particular, we examine the variation of the output beam intensity and the stability condition through a computer simulation.

고리형 레이저에서 단일모드로 발진되는 양방향 광속의 출력세기를 맥스웰-블로흐 방정식을 사용한 준고전적 모형으로 분석하였다. Nd:YAG를 레이저 매질로 설정하고, 한쪽 방향의 광속이 반대 방향의 광속에 미치는 영향을 고려하여, 펌핑률과 감쇄율 및 진동수 어긋남에 따른 레이저 발진의 안정성과 출력변조를 조사하였다. 특히, 전산시늉을 통하여 진동수 어긋남에 따른 출력광속의 변화를 조사하고, 안정한 연속발진 조건을 규명하였다.

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References

  1. Phys. Rev. v.137A Stability of Traveling Waves in Lasers J. A. White
  2. Phys. Rev. v.138A Theory of a Traveling-Wave Optical Maser Frederick Aronowitz
  3. Sov. Phys. Tech. Phys. v.13 Spartial Field Distribution in a Ring Laser E. M. Belenov
  4. Phys. Rev. v.A8 Theory of a Ring Laser L. N. Menegozzi;W. E. Lamb. Jr.
  5. Sov. Phys. JETP v.38 Oscillation regimes in a rotating solid-state ring laser E. L. Klochan;L. S. Kornienko(et. al.)
  6. Dokl. Akad. Nauk SSSR Unidirectional oscillation in a solid state ring laser E. L. Klochan;L. S. Kornienke(et. al)
  7. Laser Physics (1st ed.0 M. Sargent III;M. O. Scully(et al.)
  8. Phys. Rev. v.A21 Fluctuations in a laser Theory P. Mandel
  9. Phys. Rev. Lett. v.47 Macroscopic Quantum Fluctuations and First-Order Phase-Transition in a Laser P. Lett;W. Christian(et. al.)
  10. Opt. Commum. v.42 Modes Instabilities in a Homogeneously Broadened Ring Laser P. Mandel
  11. Phys. Rev. v.A37 Bidirectional ring laser : Stability analysis and time-depentdent solutions H. Zeghlache;P. Mandel(et.al.)
  12. Phys. Rev. v.A38 Phase and amplitude dynamics in the laser Lorenz model H. Zeghlache;P. Mandel(et. al.)
  13. Introduction to Laser Physics (2nd ED) v.44 K. Shimoda