Fibre Bragg grating writing using phase mask technology
نویسندگان
چکیده
Fibre Bragg gratings (FBGs) are novel components of communication and sensors. The technique commonly employed for production of FBGs involves exposure of photosensitive germanosilicate fibre cores to intense excimer laser radiation through an optical phase mask located in close proximity of the fibre. FBGs were written using this technique in two different fibre samples and their strain and temperature sensing characteristics were investigated. The paper describes the techniques used for fabrication and their characteristic studies.
منابع مشابه
Intrinsic apodization of Bragg gratings written using UV-pulse interferometry
We present a new interferometric technique to write apodized Bragg gratings. Along the fiber, two UV-pulses interfere with a variable time delay creating a gaussian apodization profile which strongly reduces the reflectivity side-lobes. This method allows writing of truly apodized gratings by single exposure of a uniform phase-mask. Introduction: In optical communication systems, applications o...
متن کاملNovel fiber Bragg grating fabrication system for long gratings with independent apodization and with local phase and wavelength control.
We proposed and demonstrated a novel practical fiber Bragg grating (FBG) fabrication setup constructed with high performance linear stages, piezoelectric translation (PZT) stages, and a highly stable continuous wave laser. The FBG fabrication system enables writing of long FBGs by a continuous translate-and-write process and allows implementation of arbitrary chirp and apodization. A key innova...
متن کاملBragg grating writing in PMMA microstructured polymer optical fibers in less than 7 minutes.
We demonstrate fiber Bragg grating (FBG) writing in PMMA microstructured Polymer Optical Fibers (mPOFs) using UV Phase Mask technique with writing times shorter than 10 min. The shortest writing time was 6 minutes and 50 seconds and the longest writing time was 8 min and 50 sec. The FBGs were written in a 125 µm PMMA mPOF having 3-rings of holes, the reflection peaks were centred at 632.6 nm an...
متن کاملPolymer PCF Bragg grating sensors based on poly(methyl methacrylate) and TOPAS cyclic olefin copolymer
Fibre Bragg grating (FBG) sensors have been fabricated in polymer photonic crystal fibre (PCF). Results are presented using two different types of polymer optical fibre (POF); first multimode PCF with a core diameter of 50μm based on poly(methyl methacrylate) (PMMA) and second, endlessly single mode PCF with a core diameter of 6μm based on TOPAS cyclic olefin copolymer. Bragg grating inscriptio...
متن کاملAntisymmetric pulse generation using phase-shifted fibre Bragg grating
Recent research in dispersion-managed systems for optical communications poses new challenges to the generation of soliton pulses. By deriving an approximate ordinary differential equation for the shape of the fundamental dispersion managed soliton, the existence of higherorder dispersion managed solitons was predicted [1]. The first antisymmetric solution was theoretically demonstrated to be r...
متن کامل