Abstract
Lasers coupled to phase conjugate external cavities are of interest because of the potential impact on laser phasing. The boundary conditions for a laser coupled to a bare phase-conjugate cavity and for two lasers coupled via a double phase conjugate mirror (DPCM) are derived. The analysis indicates that the phase shift on the beams returning from the external cavity is equal to 2nπ, where n is an integer, regardless of external cavity length. Data collected on the bare cavity supports this conclusion. The difference between reflection from a self-pumped photorefractive phase-conjugate mirror (PCM) and a four-wave mixing PCM are explained. The implications of this work for laser phasing are discussed.
© 1992 Optical Society of America
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