Abstract
Beam couplings between two coherent beams in self-pumping BaTiO3 have been discussed earlier.1–3 This paper deals with beams couplings In reflection and transmission in the self-pumping electrically poled BaTi03 crystal (8×8×6mm3) using a He-Ne laser (6328 Ǻ) along with an isolator. Two coherent beams A1 (3.25 mW) and A2 (3.0 mW) meet in the crystal with horizontal polarization. The crossing angle is 5° with A1 making 78° with the C axis horizontal [Fig. 1(a)]. The point of entry is 2 mm from the edge nearest A2. Under individual pumping by A1 and A2 one sees at the detectors D1 and D2 the self-pumped beams A1(t) or A2(t). Also seen are transmitted beams (A1T1,A1T2,A1T3) or (A2T1, A2T2, and A2T2). Reflected beams (A1R1,A1R2,A1R3) or (A2R1 A2R2, and A2R3) are seen even when self-pumping is not developed while the transmitted beams appear only when self-pumping is present.
© 1989 Optical Society of America
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