Coherent light generators – Long wavelength
Patent
1995-10-25
1997-12-09
Scott, Jr., Leon
Coherent light generators
Long wavelength
372 20, 372 92, 372 69, 372100, 372107, 372 10, 372 97, H01S 330
Patent
active
056967780
ABSTRACT:
Apparatus performs a method of generating one output laser pulses in a range of 2 to 5 microns using an intracavity feature. When a plurality of the output laser pulses are generated, a first output pulse may have any selected wavelength within the range and a second output pulse is temporally closely spaced relative to the first output pulse and may have a chosen wavelength differing from the selected wavelength. A pump laser cavity is provided with a tunable rod and an intracavity Raman device (in the pump cavity) to shift the wavelength of initial pump laser pulses. The intracavity Raman device generates radiation at first and second Stokes wavelengths, and the pulses at each wavelength are separated and are in separate paths for permitting separate operation thereon. The Raman device in the pump cavity increases the pump intensity inside the Raman cell and gives a much longer effective interaction length between the pump laser beam and the Raman medium. A first Stokes cavity for the first Raman shift overlaps the pump cavity such that the intensity in the first Stokes cavity is increased. A second Stokes cavity overlaps the pump cavity and is provided with one highly reflecting end mirror and one partially reflecting end mirror which serves as an output coupler for the output pulse which is in the wavelength range from 2 to 5 microns.
REFERENCES:
patent: 4151486 (1979-04-01), Itzkan et al.
patent: 4191170 (1980-03-01), Kurnit
patent: 5034952 (1991-07-01), Mansfield et al.
patent: 5272717 (1993-12-01), Stultz
patent: 5414724 (1995-05-01), Krapchev
patent: 5583877 (1996-12-01), MacPherson et al.
Bilbe, R.M., et al., 1990, An Improved Raman Lidar System For the Remote Measurement of Natural gases Released Into The Atmosphere, Measurement Science Technology, 1, No. 6, pp. 495-499.
Hanson, F. et al., 1993, Gain Measurements and Average Power Capabilities of Cr3+:LiSrAlF6, Optics Letters, 18, No. 17, pp. 1423-1425.
MacPherson, D.C., et al., 1989, Stimulated Raman Scattering In the Visible With A Multipass Cell, IEEE Journal of Quantum Electronics, 25, No. 7, 1741-1746.
Perry, M.D., et al., Better Materials Trigger Cr:LiSAF Laser Development, Laser Focus World, Sep., pp. 85-92.
Scott, B.P., et al., 1990, Efficient Raman Energy Extraction in HD, Applied Optics, 20, No. 29, pp. 2217-2218.
Stalder, M., et al., 1991, Flashlamp Pumped Cr:LiSrAlF6, Applied Physics Letters, 58, (3) 21 Jan. 1991.
Swanson, R.C., et al., 1990, Quantum statistics of the Gain-Narrowed Raman Linewidth in H2, American Physical Society, Physical Review A, 42, No. 11, pp. 6774-6783.
Zhang, Q., et al., 1992, Electronically Tuned Diode-Laser-Pumped Cr:LiSrAlF6 Laser, Optics Letters, 17, No. 1, pp. 43-45.
Jr. Leon Scott
Martine, Jr. C. E.
Ophir Corporation
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