Coherent light generators – Particular active media – Gas
Patent
1986-09-30
1988-06-14
Davie, James W.
Coherent light generators
Particular active media
Gas
372 82, 372 87, 372 97, H01S 305, H01S 3096
Patent
active
047517158
ABSTRACT:
A multiple cavity waveguide laser is formed of a pair of face to face contiguous dielectric blocks 70, 72in the facing surfaces of which are formed pairs of mating waveguide grooves 78, 80, 82, 84having an electrode partition 92 sealed to and between the adjacent mating blocks to separate one pair of waveguide cavities from another, thereby forming four closely spaced waveguide cavities. In another embodiment, the partition 26 between the two dielectric blocks 10, 12 is thin conductive material, and dielectric partitions 36, 38 are provided between cavities of each pair in a single dielectric block. The internal surfaces 40, 42, 44, 47 of each cavity opposite the common electrode 26 are plated with an electrically conductive material, and suitable electrical connections 56, 58, 18 are made from the internal electrodes to the exterior of the blocks. The two blocks 10, 12 are fixed to one another by a brazing and sealing compound 18 on their surfaces, which brazing compound may form part of the electrical connection from the internal electrodes. Mirrors common to all four cavities are mounted to the ends 62, 64 of the blocks, and radio frequency energy is coupled to the internal electrodes for excitation of the lasing gas within the cavities.
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Japanese Patent Abstract, vol. 7, No. 276 (E-215) (1421), Dec. 9, 1983; and 58-157186, Sep. 19, 1983; Takasu.
Davie James W.
Hughes Aircraft Company
Karambelas Anthony W.
Szabo Joseph E.
Vo Xuan T.
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