The tuning performance of a liquid-crystal, electro-optically tunable, Lyot filter is described. This filter is widely tunable across the visible region up to a wavelength of approximately 630 nm and has very high performance characteristics that are preserved over the entire tuning range. These include a narrow passband of 0.1 nm, a large-aperture performance of at least 30 mm, a wide field of view of ±8.5°, and the ability to be tuned to an accuracy that is one tenth of the linewidth of the passband. Possible applications for such a filter include remote sensing, multispectral sensing, and laser environmental and underwater monitoring.
© 1998 Optical Society of America
Original Manuscript: February 11, 1997
Revised Manuscript: September 2, 1997
Published: February 20, 1998
Jackie Staromlynska, Simon M. Rees, and Michael P. Gillyon, "High-performance tunable filter," Appl. Opt. 37, 1081-1088 (1998)