Title :
Group-delay-tailored chirped fiber Bragg gratings using a tapered elastic plate
Author :
Kwon, Jaejoong ; Chung, Seungwhan ; Jeong, Yoonchan ; Lee, Byoungho
Author_Institution :
Sch. of Electr. Eng., Seoul Nat. Univ., South Korea
Abstract :
A new method to induce a strain gradient on a fiber Bragg grating is described. The method can be used to generate arbitrary strain distributions along the fiber. The objective of the method was to apply strain to a fiber grating that is attached on an appropriately tapered elastic plate. Using this method, linearly/nonlinearly chirped fiber gratings were prepared. Various group delay slopes were obtained depending on the plate shape and the applied strain. In addition, the repeatability could be maintained by adopting a feedback control method for the strain adjustment.
Keywords :
Bragg gratings; chirp modulation; optical fibre dispersion; piezo-optical effects; applied strain; dispersion compensator; feedback control method; group delay slopes; group-delay-tailored chirped fiber Bragg gratings; linearly chirped fiber gratings; nonlinearly chirped fiber gratings; plate shape; repeatability; strain adjustment; strain distributions; strain gradient; tapered elastic plate; Bragg gratings; Capacitive sensors; Chirp; Delay; Fiber gratings; Optical fiber communication; Optical fiber devices; Optical fiber dispersion; Optical fibers; Strain control;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2002.802388
