Bragg grating fabrication with wide range coarse and fine wavelength control.

A Bragg grating fabrication method based on a phase-controlled interferometric approach with both coarse control and fine tuning of Bragg wavelength in the range of 1200-2200 nm is demonstrated by fabricating multiple Bragg reflectors in a single fiber device. With the fine tuning method, we achieved ~113 nm of FWHM bandwidth centered at ~1545 nm and ~174 nm of FWHM bandwidth centered at ~2005 nm, which were limited only by the size of the overlap of the interfering beams and by the Bragg wavelength. We used the wide range of the coarse wavelength control and the precision of the fine wavelength setting to determine the fiber Sellmeier coefficients with a mean squared error <3.5 × 10(-9).

[1]  Y. Miyajima,et al.  1.9 mu m Tm-doped silica fibre laser pumped at 1.57 mu m , 1994 .

[2]  J. Gates,et al.  Analysis of Dispersion Characteristics of Planar Waveguides via Multi-Order Interrogation of Integrated Bragg Gratings , 2012, IEEE Photonics Journal.

[3]  M. Durkin,et al.  Sinc-sampled fiber Bragg gratings for identical multiple wavelength operation , 1998, IEEE Photonics Technology Letters.

[4]  J. Bokor,et al.  Bragg gratings fabricated in monomode photosensitive optical fiber by UV exposure through a phase mask , 1993 .

[5]  C. Sima,et al.  Ultra-wide detuning planar Bragg grating fabrication technique based on direct UV grating writing with electro-optic phase modulation. , 2013, Optics express.

[6]  Peter J. Gilling,et al.  In 2013, Holmium Laser Enucleation of the Prostate (HoLEP) May Be the New ‘Gold Standard’ , 2012, Current Urology Reports.

[7]  G. Meltz,et al.  Formation of Bragg gratings in optical fibers by a transverse holographic method. , 1989, Optics letters.

[8]  Raoul Stubbe,et al.  A writing technique for long fiber Bragg gratings with complex reflectivity profiles , 1997 .

[9]  Alexander V. Buryak,et al.  Optimization of refractive index sampling for multichannel fiber Bragg gratings , 2003 .

[10]  Michalis N. Zervas,et al.  Moving fibre/phase mask-scanning beam technique for enhanced flexibility in producing fibre gratings with uniform phase mask , 1995 .

[11]  M. Durkin,et al.  1 m long continuously-written fibre Bragg gratings for combined second- and third-order dispersion compensation , 1997 .

[12]  Raman Kashyap,et al.  Novel custom fiber Bragg grating fabrication technique based on push-pull phase shifting interferometry. , 2008, Optics express.

[13]  M. Ibsen,et al.  Ultra-short wavelength operation of a two-micron thulium fiber laser , 2014, 2014 Conference on Lasers and Electro-Optics (CLEO) - Laser Science to Photonic Applications.