Compact Tunable Infrared Grating Laser

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N/A
Agency Tracking Number: 25699
Amount: $70,000.00
Phase: Phase I
Program: SBIR
Awards Year: 1994
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
2008 Yale Station, New Haven, CT, 06520
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Jay L. Hirshfield
 (203) 432-5428
Business Contact
Phone: () -
Research Institution
A Phase I SBIR study is proposed of a novel infrared laser configuration employing a coaxial resonant structure and a gyrating electron beam. The center conductor of the structure contains axial ridges that support diffraction radiation induced by the axis-encircling gyrating beam, while the outer conductor of the structure supports radial standing waves that provide feedback to sustain oscillations. The electron beam is to be provided by a recently developed industrial gun that can furnish up to 1 megawatt of high quality beam power at a voltage of up to 100 kV on thin axis-encircling orbits in a moderate guide magnetic field. This novel concept has the potential of providing a compact, voltage-tunable, multi-kilowatt, high duty cycle, coherent, infrared source in the 50-200 micron wavelength range suitable for a variety of civilian and military applications. The proposed Phase I study involves linear and nonlinear theory and numerical simulations to allow design of the structure and its incorporation with the industrial electron gun. Means to maximize the voltage-tunable bandwidth and efficiency will be studied. Results of the Phase I study are to be organized to lead to a Phase II experimental demonstration of the compact tunable infrared grating laser.

* Information listed above is at the time of submission. *

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