Title :
Novel Bragg grating translation detection technique with 10 nm spatial accuracy
Author :
Åslund, Mattias ; Canning, John ; Poladian, Leon ; De Sterke, Martijn
Author_Institution :
Opt. Fibre Technol. Centre, Sydney Univ., NSW, Australia
Abstract :
We demonstrate a novel grating characterisation method that can detect lateral shifts of fibre Bragg gratings with a resolution of approximately 10 nm. The method can also be used to compare the period between any transparent media with periodic refractive index modulations, such as phase masks, with an accuracy of ∼0.5ppm.
Keywords :
Bragg gratings; light diffraction; light interferometry; optical fibre testing; phase shifting masks; refractive index; 10 nm; Bragg grating translation detection technique; detection resolution; grating lateral shifts; interferometric side diffraction technique; periodic refractive index modulations; phase masks; spatial accuracy; translation monitoring; transparent media; Australia; Bragg gratings; Canning; Diffraction gratings; Fiber gratings; Interference; Optical diffraction; Optical fibers; Refractive index; Wavelength measurement;
Conference_Titel :
Microwave and Optoelectronics Conference, 2003. IMOC 2003. Proceedings of the 2003 SBMO/IEEE MTT-S International
Print_ISBN :
0-7803-7824-5
DOI :
10.1109/IMOC.2003.1242700
