Measurement of absciss layer displacement with optical grating computation;

Design of printing system with needle-type grating head for OVD'S;

Conceptual Design and Key Technology of the Grating Duplicating Machine;

Design of raster data acquisition system for large diameter measurement with multiple rolling-wheel method;

The stroke/raster signal generation and test in ATS;

High-Speed Processing of Signals of Raster Displacement Sensor by PLC;

Computation and analysis of electric field distribution in one-dimensional gratings;

Fabrication of Binary Phase Gratings with Arbitrary geometry Coding scheme;

Photowritten waveguides and gratings inside the fused silica glasses by femtosecond laser pulses;

The concave diffraction grating on the film of PPTA is prepared by the double beam interference illumination.

This paper quantitatively compares the spectrum characteristics between Fabry-Perot interferometer with gain medium and diffraction grating spectrometer.

The proper optical fiber,plane directional optical grating and concave reflector were chosen and integrated together based on the theoretical computation for the optical layout of the spectrometer.

A technique of division of scale pulse for optical grating transducer measuring system is discussed in this paper.