This paper studies the important effect of feedback delay on the unstable output of ring cavity laser system, especially the route to chaos in small delay time.
As a result, it induces oscillating mode change, laser cavityunstable, and the complicated change of laser output power.
因而引起振荡模式的变化，腔的失稳，激光输出功率变化的复杂化。
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It can be used to analyze and design stable standing cavity, stable travelling cavity, unstable standing cavity, unstable travelling cavity, phase conjugate cavity and beam transmission and so on.