title: Threshold couplings of phase-conjugate mirrors with two interaction regions.
abstract: Using the grating-action method, we determine the threshold coupling strengths of three generic examples of phase-conjugate mirrors with two interaction regions: the cat conjugator, the mutually incoherent beam coupler, and the interconnected ring mirror.
authors: M
authors: M
authors: Beli
authors: M
authors: M
authors: Petrovi
authors: O
authors: O
authors: Sandfuchs
authors: F
authors: F
authors: Kaiser