Chirp-free tuning of fiber Bragg grating using a cantilevel beam

Youlong Yu, Hwayaw Tam, Shuwei Geng, Muhtesem Suleyman Demokan, Zhiguo Liu, Wenghong Chung

Research output: Journal article publicationJournal articleAcademic researchpeer-review


A new approach for tuning the wavelength of a fiber Bragg grating without chirping is demonstrated. Tuning is achieved by bending a triangular cantilever beam with the grating was epoxied on its surface. The isosceles triangle was firmly fixed at its base and bending was realized by exerting a force to its vertex. Chirp-free tuning of a fiber Bragg grating over a wavelength range of 4.52 nm is demonstrated. Using a correction index of 0.7, the experimental results are in good agreement with the theoretical values.
Original languageEnglish
Pages (from-to)L1032-L1034
JournalJapanese Journal of Applied Physics, Part 2: Letters
Issue number9 A/B
Publication statusPublished - Sept 1999


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