Phasics to present adaptive optics loop at expo

Phasics is to present an adaptive optics loop based on its wavefront sensor and its software to drive a deformable mirror at Photonics West 2009 in San Jose, California on 27-29 January.

The high-resolution wavefront sensors (SID4) are based on four-wave lateral shearing interferometry, which offers the optimal design features for laser characterisation and optical metrology, including sensitivity, high resolution and dynamic range measurement.

The SID4 device gives the main information for a complete characterisation of a beam in a single measurement, including: beam's wavefront with the aberrations (high-resolution phase map up to 160 x 120 measurement points) - the intensity profiles with a Gaussian fit, beam size, ellipticity - M value (according to ISO11146 standard) and Strehl ratio for the beam quality.

Phasics's adaptive optics systems offer the prospect of beam focusing optimisation and beam-shaping in real time.

For imaging systems, the company ensures diffractive limited performances.

Oasys includes the high-performance SID4 wavefront sensor, a deformable mirror and the software to drive both the analyser and the deformable mirror, all best suited to the application.

The Oasys software controls the correction device (deformable mirror, SLM, or deformable membrane) and is linked to the SID4 main interface software.

For optical metrology, Kaleo measures at the same time as the aberrations, the focal length and the MTF of spherical and aspherical optics.

The technology allows characterising highly opened optics (up to f/1.6) without any relay lens.

Kaleo is particularly adapted to industry needs and allows a complete diagnostic of the lens quality.

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