Calculation, fabrication, and study of waveguides for an integrated-optics gyroscope

A material rigidity effect of a bimorph piezoelectric actuator

“…The tension and compression forces created by the piezoelectric layers symmetrically bonded to the top and bottom surfaces of the non-piezoelectric layer made of a metal material shown in figure 3 depends on its geometric dimensions, piezoelectric properties and the electrical voltage V supplied to the piezoelectric elements [9]:…”

“…By using the piezoelectric mirror, it was possible to change the beam path geometry inside the laser cavity with extreme precision [1,2]. After avoiding of the lock-in effect [3][4][5], the interests involved in the development design of ring resonator began to concentrate on the practical solution of stabilizing the beam path [6][7][8][9][10]. The purpose of the mechanical dithering is to suppress the dead band, oscillate the block about the rotation axis, and add an external rotation rate.…”

Piezoelectric actuators for the correction of optical ray path in the operation of laser gyros

“…1,2 After avoiding the lock-in effect, [3][4][5][6] the interest in the conceptual design of the laser gyro began to focus on the practical solution of stabilizing the beam path. [7][8][9][10][11] Additionally, control scheme and experimental behavior analysis of piezoelectricactuator can be considered to apply and operate the piezoelectricactuator properly. 12,13 This paper presents a practical mathematical model of a piezoelectric actuator used in the laser gyros.…”

Scale-factor corrections in the optical inertial sensor

“…Using the piezoelectric-actuated mirror, it was possible to vary the optical ray path geometries inside the resonator cavity stably and with extreme precision [1,2]. After avoiding the lock-in effect [3][4][5], the focus on the conceptual design of the optical inertial sensor began to shift towards the practical solution of stabilizing the beam path [6][7][8][9] and, based on the optical ray path geometries without the structural consideration of the piezoelectric actuated mirror, the resonator design has been presented in order to avoiding the lock-in threshold as a function of path geometries [10].…”