Claims
- 1. A gas filled laser tube for use in a Fabry-Perot cavity to generate electromagnetic radiation (EMR) within a given band of submillimeter wavelengths, comprising:
- an elongated tube of dielectric material characterized by low loss propogation of radio frequency EMR;
- a pair of end caps hermetically sealing the ends of said tube, said caps being transparent to said given band of EMR; and
- a transmission line formed by twin parallel wires for high frequency EMR spiralled around the exterior surface of said tube such that the maximum intensity electric field line between said wires which penetrates said tube is parallel to the tube axis.
- 2. A tube in accordance with claim 1, wherein:
- said tube includes spiral grooves in which said twin parallel wires are embedded.
- 3. A tube in accordance with claim 2, wherein:
- said wires are bonded to said tube.
- 4. A tube as set forth in claim 2, wherein said wires are potted in a dielectric coating such that the electric breakdown potential between said wires over the outside of said tube is greatly increased.
- 5. A tube in accordance with claim 1, wherein:
- said wires are bonded to said tube.
- 6. A tube in accordance with claim 1, wherein:
- said wires are ribbon shaped.
- 7. A tube as set forth in claim 1, wherein:
- said wires have a round cross-section.
- 8. A tube as set forth in claim 1, wherein said wires are potted in a dielectric coating such that the electric breakdown potential between said wires over the outside of said tube is greatly increased.
Parent Case Info
This invention is a continuation-in-part of my earlier invention, disclosed in U.S. patent application Ser. No. 875,841, filed June 18, 1986.
Government Interests
This invention described herein may be manufactured, used, and licensed by the U.S. Government for governmental purposes without the payment of any royalties thereon.
US Referenced Citations (4)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
875841 |
Jun 1986 |
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