Coherent light generators – Particular beam control device – Nonlinear device
Patent
1995-02-14
1996-04-30
Scott, Jr., Leon
Coherent light generators
Particular beam control device
Nonlinear device
372 18, 372 19, 372 20, 372 12, 372 64, 372 28, 372 99, 372102, H01S 310
Patent
active
055131964
ABSTRACT:
A laser cavity configuration employs a mode reshaping structure in a solid state waveguide. The mode reshaping may be by means of an adiabatic taper. Polarization switching may be employed in connection with the mode reshaping to obtain a high output power in a single transverse spatial mode from an integrated external cavity multiple-mode diode laser device. The structure provides stabilization and rapid tuning of the frequency of the diode laser, as well as use substantially all of the available power of the diode laser operating multimode. Various configurations and combinations are described. An advantage is that an integrated structure can provide output of the laser in a waveguide with single mode for subsequent applications. The external cavity diode laser according to the invention is consistent with a planar manufacturing process such that high volume, low cost products can be achieved.
REFERENCES:
patent: 4384760 (1983-05-01), Alferness
patent: 4390236 (1983-06-01), Alferness
patent: 4533207 (1985-08-01), Alferness
patent: 4667331 (1987-05-01), Alferness et al.
patent: 4728168 (1988-03-01), Alferness et al.
patent: 5050179 (1991-09-01), Mooradian
patent: 5150374 (1992-09-01), Mooradian
patent: 5185752 (1993-02-01), Welch et al.
patent: 5327447 (1994-07-01), Mooradian
patent: 5418802 (1995-05-01), Chwalck
R. L. Abrams and A. N. Chester, "Resonator theory for hollow waveguide lasers," Appl. Opt. 13, 2117 (1974).
R. C. Alferness and L. L. Buhl, "Tunable electro-optic waveguide TE<->TM converter/wavelength filter," Appl. Phys. Lett. 40, 861 (1982).
D. M. Bird, J. R. Armitage, R. Kashyap, R. M. A. Fatah, K. H. Cameron, "Narrow line semiconductor laser using fibre grating," Electron. Lett. 27, 1116 (1991).
L. Goldberg, D. Mehuys, M. R. Surette, and D. C. Hall, "High power, near-diffraction-limited large-area travelling-wave semiconductor amplifiers," IEEE J. Quantum Electron. 29, 2028 (1993).
F. Heismann, R. C. Alferness, L. L. Buhl, G. Eisenstein, S. K. Korotky, J. J. Veselka, L. W. Stulz, and C. A. Burrus, "Narrow-linewidth, electro-optically tunable InGaAsP-Ti:LiNbO.sub.3 extended cavity laser," Appl Phys. Lett. 51, 164 (1987).
F. Laurell, "Stable blue second-harmonic generation in a KTP waveguide with a diode laser in an external cavity," Electron. Lett. 29, pp. 1629-1630 (1993).
H. Nishihara, M. Haruna, T. Suhara, Optical Integrated Circuits, (McGraw-Hill, New York, 1985).
Z. Tang, O. Eknoyan, H. F. Taylor, and V. P. Swenson, "Electro-optically tunable wavelength selective polarization convertor in Zn:LiTaO.sub.3," Electron. Lett. 28, 2248 (1992).
Bruno Wacogne, Jean-Pierre Goedgebuer, and Henri Porte, "Single lithium niobate crystal for mode selection and phase modulation in a tunable extended-cavity laser diode," Opt. Lett. 19, 1334 (1994).
K. Yamamoto et al., "High power blue light generation by frequency doubling of a laser diode in a periodically domain inverted LiTaO.sub.3 waveguide", Appl. Phys. Lett. 62 2599-2601 (1993).
W. P. Risk et al. "Generation of 425 nm light by waveguide frequency doubling of a GaAlAs laser diode in an extended-cavity configuration", CThB3 in Proceedings of the conference on Advanced Solid State Lasers, Feb. 1-4 1993, Optical Society of America, Technical Digest Series vol. 2.
Bischel William K.
Brinkman Michael J.
Deacon David A. G.
Allen Kenneth R.
Deacon Research
Jr. Leon Scott
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