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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Leger; James R.
Address:
Groton, MA
No. of patents:
10
Patents:












Patent Number Title Of Patent Date Issued
5787107 Method and apparatus for efficient concentration of light from laser diode arrays July 28, 1998
A lens system for use with a linearly arrayed light beam including a first optical element for receiving and redirecting different portions of the linearly arrayed light beam to different locations on an imaginary plane so as to generate a two-dimensional pattern of light beams on the
5568318 Method and apparatus for efficient concentration of light from laser diode arrays October 22, 1996
A lens system for use with a linearly arrayed light beam including a first optical element for receiving and redirecting different portions of the linearly arrayed light beam to different locations on an imaginary plane so as to generate a two-dimensional pattern of light beams on the
5185758 Multiple-laser pump optical system February 9, 1993
Apparatus and method for scaling solid-state devices to higher power using multiple sources each of which are separately collimated, followed by focusing of the pump radiation into gain medium colinear to laser mode using a moderated focus. A modularized system is also described.
5124843 Array illuminator using a binary optics phase plate June 23, 1992
An optical element for converting a uniform beam of light of wavelength .lambda. into an array of illuminated spots, the optical element including a phase plate made of an array of constant phase zones; and an image plane disposed parallel to and at a preselected distance from the phase
5081637 Multiple-laser pump optical system January 14, 1992
Apparatus and method for scaling solid-state devices to higher power using multiple sources each of which are separately collimated, followed by focusing of the pump radiation into gain medium colinear to laser mode using a moderated focus. A modularized system is also described.
5033060 Optical device for laser coupling and coherent beam combining July 16, 1991
An apparatus for generating a coherent combined laser beam including an array of laser elements for generating a Fresnel diffraction pattern in a plane at a distance D from the laser array, the Fresnel diffraction pattern having a non-uniform phase distribution, D being at least as large
5027359 Miniature Talbot cavity for lateral mode control of laser array June 25, 1991
An apparatus for coherent beam combining of lasers and for lateral mode control is disclosed, comprising a miniature Talbot cavity having at least a first and second surface. The first surface is to receive light from said lasers, and the second surface contains a reflecting mirror. In o
4933649 Coherent aperture filling of an array of lasers June 12, 1990
A technique for coherent aperture filling by amplitude phase exchange is described which suppresses the far field side lobes of an array of lasers. The power contained in these side lobes is transferred to the central lobe so that it contains greater than 90% of the total array power. Th
4813762 Coherent beam combining of lasers using microlenses and diffractive coupling March 21, 1989
A diffractive lenslet array receives light from multiple lasers. The lenslet array is spaced apart from a partially reflecting mirror by a distance Z=nd.sup.2 /.lambda. where n is an integer or half integer, .lambda. is the laser wavelength and d is the spacing of the lenslets in the
4765714 Binary phase-only optical correlation system August 23, 1988
A binary phase-only optical correlation system incorporating therein a binary phase-only filter. The binary phase-only optical filter is made by mathematically generating preselected phase-only information by a fast Fourier Transform technique. This generated phase-only information is










 
 
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