Proceedings PaperMonolithic unidirectional planar ring oscillators
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The design elements of a diode-pumped Nd:YAG planar-ring oscillator (PRO) are presented, along with the theory describing the operation of PROs. Design considerations based on the theoretical findings are assessed, and it is pointed out the phase shift of the effective waveplate can be tuned to account for any practical deviations of the phase shift in the output-mirror coating from the desired phase shift. PROs based on these design considerations are reviewed. Ring crystals of two different dimensions are fabricated, and results for one of each size are compared. Focus is placed on the relaxation oscillation frequency and beat-note stability. Single-frequency output of greater than 200 mW from a monolithic diode-pumped PRO is reported.