Dynamic stable ring resonator for high-power continuous single-frequency lasers: conditions for a compact resonator

When considering dynamically stable resonators, ring lasers are good choices because they have a stability interval that is twice as large as that of linear resonators and sensitivity to misalignment decreasing with pump power; however, the literature does not provide easy design guidelines. A ring...

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Veröffentlicht in:Applied optics (2004) 2023-03, Vol.62 (8), p.C38-C42
Hauptverfasser: Bereczki, Allan, Wetter, Niklaus Ursus
Format: Artikel
Sprache:eng
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Zusammenfassung:When considering dynamically stable resonators, ring lasers are good choices because they have a stability interval that is twice as large as that of linear resonators and sensitivity to misalignment decreasing with pump power; however, the literature does not provide easy design guidelines. A ring resonator utilizing Nd:YAG side pumped by diodes allowed single-frequency operation. The output single-frequency laser had good output characteristics; however, the overall length of the resonator did not allow for building a compact device with low misalignment sensitivity and larger spacing between longitudinal modes which could improve single-frequency performance. Based on previously developed equations, which allow for ease of design of a ring dynamically stable resonator, we discuss how to build an equivalent ring resonator, aiming to building a shorter resonator with the same stability zone parameters. The study of the symmetric resonator containing a pair of lenses allowed us to find the conditions to build the shortest possible resonator.
ISSN:1559-128X
2155-3165
1539-4522
DOI:10.1364/AO.477415