13 November 2014 Study on stimulated emission from polymer distributed feedback waveguide using interference ablation
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Abstract
A polymer distributed feedback (DFB) laser was fabricated by two-beam interference from MEH-PPV film on clear glass substrate. A direct-writing technique was reported that achieves large-area 1D DFB polymer lasers. The polymer thin film was exposed to a single-shot illumination of the interference pattern of one UV laser pulse at 355 nm. The direct-writing and the lasing characters of 1D DFB polymer lasers were demonstrated. The results show the lower threshold and full width at half maximum (FWHM) from DFB polymer laser than slab waveguide. The peak position is tuned by changing the period from 340 nm to 350 nm. The results show that the simple and low-cost technique that enables highly reproducible mass fabrication is required for the easy realization and more profound investigation of the polymer lasers based on the DFB configuration.
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Bo Zhang, Bo Zhang, Hao Cheng, Hao Cheng, Yangyang Sun, Yangyang Sun, } "Study on stimulated emission from polymer distributed feedback waveguide using interference ablation", Proc. SPIE 9277, Nanophotonics and Micro/Nano Optics II, 92771P (13 November 2014); doi: 10.1117/12.2072341; https://doi.org/10.1117/12.2072341
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