Single Channel Self-Mixing Interferometer Measures Simultaneously Displacement and Tilt and Yaw Angles of a Reflective Target

Abstract

We show that a self-mixing interferometer can supply not only to the usual optical-phase signal cos 2ks(t) of the external reflector displacement s(t), but also the attitude signal P(a) because of the dependence of power from the angle a between wavevector k and normal n to the target reflective surface. By proper interrogation of P(a) along two orthogonal… (More)

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