论文信息 - Novel tunable phase-shifted fiber Bragg grating implemented by adjusting gap between two fibers

Novel tunable phase-shifted fiber Bragg grating implemented by adjusting gap between two fibers

A novel method to realize the adjustable phase-shifted fiber Bragg grating (FBG) is proposed in this paper. By adjusting the air gap between two identical FBG, the phase shift has been changed, and the transmission characteristics of such phase-shifted FBG can be tuned. Both theoretical simulation and experimental measurement have been carried out to verify and demonstrate the idea. It has been shown the proposed tuning method is effective and the experimental results agree well with the theoretical prediction.

[1] T. Erdogan. Fiber grating spectra , 1997 .

[2] S Barcelos,et al. Complex grating structures with uniform phase masks based on the moving fiber-scanning beam technique. , 1995, Optics letters.

[3] Chao Lu,et al. Resonance-temperature-insensitive phase-shifted long-period fiber gratings induced by surface deformation with anomalous strain characteristics. , 2005, Optics letters.

[4] Ping Shum,et al. Phase-shifted bandpass filter fabrication through CO2 laser irradiation. , 2005, Optics express.

[5] John Canning,et al. pi -phase-shifted periodic distributed structures in optical fibres by UV post-processing , 1994 .

[6] R. Stubbe,et al. Fiber Bragg grating (FBG) characterization and shaping by local pressure , 2001 .

[7] Deepak Uttamchandani,et al. Phase shifted Bragg gratings formed in optical fibres by post-fabrication thermal processing , 1996 .

[8] Raman Kashyap,et al. Single-frequency erbium fibre ring laser with intracavity phase-shifted fibre Bragg grating narrowband filter , 1995 .

[9] Raman Kashyap,et al. UV written reflection grating structures in photosensitive optical fibres using phase-shifted phase masks , 1994 .

[10] S. Radic,et al. Phase-shifted fiber Bragg gratings and their application for wavelength demultiplexing , 1994, IEEE Photonics Technology Letters.

[11] John Canning,et al. Permanent and transient resonances thermally induced in optical fibre Bragg gratings , 1995 .