Use of a temperature gradient to impose a chirp on a fibre bragg

Details Use of a temperature gradient to impose a chirp on a fibre bragg Use of a temperature gradient to impose a chirp on a fibre bragg

1995-04-10

1997-09-23

Bovernick, Rodney B.

Optical waveguides

With optical coupler

Input/output coupler

385 10, G02B 634

Patent

active

056713070

ABSTRACT:
A linear chirp is imposed on a fibre Bragg grating by means of a temperature gradient impressed on the grating. An optical fibre containing a fibre Bragg grating is set in a groove in an elongated plate. A temperature gradient is imposed on the plate by the applying heat to each end of the plate containing the optical fibre. The heat is applied by means of Peltier effect plates which sandwich each end of the elongated plate. Thermistors are applied to the elongated plate between the Peltier effect plates to provide feedback as to the temperature of the elongated plate and to enable an estimate to be made of the gradient across the fibre Bragg grating.

REFERENCES:
patent: 5007705 (1991-04-01), Morey et al.
patent: 5159601 (1992-10-01), Huber
patent: 5216739 (1993-06-01), Hill et al.
patent: 5444803 (1995-08-01), Kim et al.
patent: 5459799 (1995-10-01), Weber

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