PMMA mPOF Bragg gratings written in less than 10 min

I.-L. Bundalo; K. Nielsen; C. Markos; O. Bang

doi:10.1117/12.2054304

2 May 2014 PMMA mPOF Bragg gratings written in less than 10 min

I.-L. Bundalo, K. Nielsen, C. Markos, O. Bang

Proceedings Volume 9128, Micro-structured and Specialty Optical Fibres III; 91280O (2014) https://doi.org/10.1117/12.2054304
Event: SPIE Photonics Europe, 2014, Brussels, Belgium

Abstract

Fiber Bragg grating (FBG) writing in PMMA microstructured Polymer Optical Fibers (mPOFs) using the UV Phase Mask technique is a time consuming process requiring about 40 minutes to inscribe a grating in an undoped fiber. Here we demonstrate the FBG inscription with the writing times shorter than 10 min. By careful alligning and increasing the beam intensity in the core of the fiber, writing times as short as 6 minutes and 50 second were achieved. The FBGs were written in a 125 μm PMMA mPOF having 3-rings of holes, the reflection peaks were centred at 632.6 nm and have a reflectivity as high as 26 dB. We also demonstrate how the writing dynamics depends on the intensity of the writing beam.

Citation Download Citation

I.-L. Bundalo, K. Nielsen, C. Markos, and O. Bang "PMMA mPOF Bragg gratings written in less than 10 min", Proc. SPIE 9128, Micro-structured and Specialty Optical Fibres III, 91280O (2 May 2014); https://doi.org/10.1117/12.2054304

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