Polarization controlled tuneable ring laser

Details Polarization controlled tuneable ring laser Polarization controlled tuneable ring laser

1994-11-30

1996-12-24

Bovernick, Rodney B.

Coherent light generators

Particular beam control device

Mode discrimination

372 94, H01S 3098

Patent

active

055880134

ABSTRACT:
The present invention relates to a tuneable ring laser with an output having a fixed, stable linear state of polarization with a fixed and known azimuth. The state of polarization at the output is fixed by compensating for component birefringence of the various ring elements that alter the polarization state and azimuth.

REFERENCES:
patent: 4530097 (1985-07-01), Stokes et al.
patent: 4923291 (1990-05-01), Edagawa et al.
patent: 4949345 (1990-08-01), Luijtjes
patent: 4949358 (1990-08-01), Kantorski et al.
patent: 5056096 (1991-10-01), Baker et al.
patent: 5132976 (1992-07-01), Chung et al.
patent: 5239607 (1993-08-01), da Silva et al.
patent: 5243609 (1993-09-01), Huber
patent: 5274659 (1993-12-01), Harvey et al.
IEEE Photonics Technology Letters; "Electronically Tuneable Liquid-Crystal-Etalon Filter For High-Density WDM Systems"; M. W. Maeda et al. vol. 2, No. 11, Nov. 1990.
Electronics Letters; "Pigtailed High-Finesse Tunable Fibre Fabry-Perot Interferometers With Large, Medium and Small Free Spectral Ranges", J. Stone et al., vol. 23, Jul. 1987.

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