Variable bandwidth birefringent filter for stable femtosecond lasers

Author

Naganuma, Kazunori ; Lenz, Gadi ; Ippen, Erich P.

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., MIT, Cambridge, MA, USA

Volume

28

Issue

10

fYear

1992

fDate

10/1/1992 12:00:00 AM

Firstpage

2142

Lastpage

2150

Abstract

A design for a birefringent filter is described, which is suitable for tunable femtosecond lasers. Using a single plate, which has a steeply diving optic axis, two-octave tunability is attained with negligible deterioration of the stopband rejection. For a specific wavelength region, it means that the filter´s bandwidth can be changed by a factor of four. Another characteristic of the design is that, for the same bandwidth, the proposed plate is five times thicker than a conventional plate in which the optic axis is parallel to the surface. Thus, etalon effects can be avoided. Tuning characteristics of color center lasers utilizing the new filter are also presented

Keywords

birefringence; colour centre lasers; high-speed optical techniques; laser accessories; laser tuning; optical filters; color center lasers; design; etalon effects; single plate; stable femtosecond lasers; steeply diving optic axis; stopband rejection; two-octave tunability; variable bandwidth birefringent filter; wavelength region; Bandwidth; Birefringence; Laser tuning; Optical design; Optical filters; Optical surface waves; Optical tuning; Solid lasers; Tunable circuits and devices; Ultrafast optics;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.159523

Filename

159523