Abstract
Imperfections in the surface of intracavity elements of an optical ring resonator can scatter light from one mode into the counterpropagating mode. The phase-locking of the cavity modes induced by this backscattering is a well-known example that notoriously afflicts laser gyroscopes and similar active systems. We experimentally show how backscattering can be circumvented in a unidirectionally operated ring cavity either by an appropriate choice of the resonant cavity mode or by active feedback control.
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42.60.Da; 45.40.Cc; 42.79.Bh; 42.55.-f
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Krenz, G., Bux, S., Slama, S. et al. Controlling mode locking in optical ring cavities. Appl. Phys. B 87, 643–647 (2007). https://doi.org/10.1007/s00340-007-2632-8
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DOI: https://doi.org/10.1007/s00340-007-2632-8