Tailored fibre waveguides for precise two-axis Lissajous scanning | Zendy

Mohd Hadri Hafiz Mokhtar | Zendy; R.R.A. Syms | Zendy

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Tailored fibre waveguides for precise two-axis Lissajous scanning

Author(s) -

Mohd Hadri Hafiz Mokhtar,

R.R.A. Syms

Publication year - 2015

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.23.020804

Subject(s) - lissajous curve , optics , waveguide , physics , signal (programming language) , phase (matter) , actuator , cantilever , reflection (computer programming) , materials science , computer science , quantum mechanics , artificial intelligence , composite material , programming language

A two-axis optical imaging system using a Lissajous scan pattern with non-integer frequency ratio is presented. A waveguide with precisely tuned mechanical resonant frequencies is constructed by dip coating two fibres with a transparent polymer. Motion is achieved by mounting a waveguide cantilever at 45° on a single piezoelectric actuator with a dual-frequency drive. Confocal signal collection is achieved using a mode-stripping detector, and feedback signals needed for frequency and phase locking are derived from intermittent reflection from an apertured mirror. The first scan axis is locked to the resonance of one of the modes, while the second scan axis is locked to the correct phase at the desired frequency ratio. Accurate acquisition of two-dimensional images is demonstrated.

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