Pressure insensitive optical fiber

Details Pressure insensitive optical fiber Pressure insensitive optical fiber

1981-04-23

1984-01-24

Lee, John D.

350 9629, 350 9634, G02B 5172

Patent

active

044272634

ABSTRACT:
An optical fiber waveguide is rendered pressure insensitive by concentrically surrounding it with a substrate of high bulk modulus material having a wall of selected thickness whereby acoustic pressures (e.g. hydrostatic) on the waveguide induce phase change cancellations such that the algebraic sum of .epsilon..sub.z.sup.P +.epsilon..sub.r.sub.P +.epsilon..sub.z.sup.l =0.

REFERENCES:
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patent: 4076382 (1978-02-01), Oestreich
patent: 4089585 (1978-05-01), Slaughter et al.
patent: 4105284 (1978-08-01), Olshansky
patent: 4114981 (1978-09-01), Ishida et al.
patent: 4162397 (1979-07-01), Bucaro et al.
patent: 4243298 (1981-01-01), Kao et al.
patent: 4334733 (1982-06-01), Takeshima et al.
Almeida et al., "On Line-Metal Coating of Optical Fibres," Optik, vol. 53, o. 3, Jun. 1979, pp. 231-233.

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