Longitudinal mode fiber acoustic waveguide with solid core and s

Details Longitudinal mode fiber acoustic waveguide with solid core and s Longitudinal mode fiber acoustic waveguide with solid core and s

1986-09-23

1988-05-10

Lee, John

Wave transmission lines and networks

Coupling networks

Delay lines including elastic bulk wave propagation means

333141, 333145, 333149, 350 9629, 367140, H03H 930

Patent

active

047438703

ABSTRACT:
An elastic waveguide, for propagating acoustic waves, consists of an elongated solid core region and an elongated solid outer cladding region. The acoustic waves propagate in a mode where the principle particle displacement is substantially parallel to the longitudinal axis of the waveguide, this mode is called longitudinal mode. The material densities and the bulk shear wave velocities of the core and cladding region are substantially the same but the bulk longitudinal wave velocity of the cladding region is larger than that of the core region.

REFERENCES:
patent: 3824505 (1974-07-01), Borner
patent: 3922622 (1975-11-01), Boyd et al.
patent: 3975698 (1976-08-01), Redman
patent: 4077023 (1978-02-01), Boyd et al.

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