Coherent light generators – Optical fiber laser
Patent
1998-04-09
2000-12-26
Font, Frank G.
Coherent light generators
Optical fiber laser
372 27, 372 96, 372102, 372105, H01S 330, H01S 310, H01S 308
Patent
active
061670669
ABSTRACT:
Linearly-polarized, single-frequency fiber lasers are realized with optical fibers that have first and second refractive indices in a first fiber grating and third and fourth refractive indices in a second fiber grating. The first and third refractive indices are arranged along a first transverse fiber axis and the second and fourth refractive indices are arranged along a second transverse fiber axis. The grating periods and the first and third refractive indices are selected to generate spectrally-aligned signal reflectances along the first transverse axis and the grating periods and the second and fourth refractive indices are selected to generate spectrally-spaced signal reflectances along the second transverse axis. Thus, a fiber resonator is formed only along the first transverse axis and the fiber laser's output signal is linearly polarized.
REFERENCES:
patent: 5561675 (1996-10-01), Bayon et al.
patent: 5844927 (1998-12-01), Kringlebotn
Ball, G.A., et al., "60 mW 1.5 .mu.m Single-Frequency Low-Noise Fiber Laser MOPA", IEEE Photonics Technology Letters, vol. 6, No. 2, Feb., 1994, pp. 192-194.
Zyskind, J.L., et al., "Short Single Frequency Erbium-Doped Fibre Laser", IEE Electronics Letters, vol. 28, No. 15, Jul., 1992, pp. 1385-1387.
Bourgholtzer Stephen Lee
Gaeta Celestino John
Ng Willie W.
Duraiswamy V. D.
Font Frank G.
Hughes Electronics Corporation
Rodriguez Armando
Sales M. W.
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