Abstract

The performance of large-band Fabry-Pérot (FP) filters is investigated through numerical simulations and experimental realization. The limitations of the filters are studied theoretically to determine the impact of the chirped fiber Bragg grating (FBG) imperfections on spectral variations of the free spectral range (FSR), finesse, transmission loss, and polarization dependent loss (PDL). All-fiber FP devices are realized experimentally with finesse reaching 240 and covering a spectral band of 26 nm. For finesse up to 80, the filters present acceptable performance in terms of spectral variations of FSR (±3%), finesse, attenuation (±0.5 dB), PDL (< 0.2 dB), and insertion loss (<3 dB).

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Appl. Opt. (3)

Other (7)

D. Johlen, F. Knappe, H. Renner and E. Brinkmeyer, "UV-induced absorption, scattering and transition losses in UV side-written fibers", in OFC'99, 1999,paper ThD1.

J. Martin and F. Ouellette, "Novel writing technique of long and highly reflective in-fiber gratings", Electron. Lett., vol. 30, pp. 812-911, 1994.

T. Erdogan and V. Mizrahi, "Characterization of UV-induced birefringence in photosensitive Ge-doped silica optical fibers", J. Opt. Soc. Amer. B, vol. 11, pp. 2100-2105, 1994.

G. E. Town, K. Sugden, J. A. R. Williams, I. Bennion and S. B. Poole, "Wide-band Fabry-Pérot-like filters in optical fiber", IEEE Photon. Technol. Lett, vol. 7, pp. 78-80, Jan. 1995.

S. Doucet, R. Slavík and S. Larochelle, "High-finesse large band Fabry-Pérot fiber filter with superimposed chirped Bragg gratings", Electron. Lett., vol. 38, pp. 402-403, 2002.

L. A. Everall, K. Sugden, J. A. R. Williams, I. Bennion, X. Liu, J. S. Aitchison, S. Thoms and R. M. De La Rue, "Fabrication of multipassband moiré resonators in fibers by the dual-phase-mask exposure method", Opt. Lett , vol. 22, pp. 1473-1475, 1997.

H. A. Macleod, Thin Film Optical Filters, 2nd ed. New York: MacMillan, 1986.

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