Amplified spontaneous emission from an infrared dye doped zirconia-organically modified silicate thin film waveguides |
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| Authors: | Yu Yang Chao Ye Weihai Ni King Young Wong Minquan Wang Dennis Lo Guodong Qian |
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| Affiliation: | (1) Department of Materials Science & Engineering, State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou, 310027, P.R. China;(2) Physics Department and the Center of Optical Science, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, P.R. China |
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| Abstract: | Near infrared dye, IR26, was doped into zirconia-organically modified silicate (ORMOSILs) waveguides by sol–gel technique. Amplified spontaneous emission (ASE) centered at 1.14 μm was observed from the solid films and their spectroscopic characteristics were studied. The dependence of ASE on the preparation details was discussed. The threshold and full widths at half maximum (FWHM) of ASE were 8.6 mJ/cm2 and ∼15 nm, respectively. The output intensity dropped to 50% of its initial value after 1,200 pulses at a repetition rate of 10 Hz and pump intensity of higher than 50 mJ/cm2. These materials are promising for the distributed feedback (DFB) lasers tunable in infrared. |
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| Keywords: | Amplified spontaneous emission Near infrared dye Zirconia-organically modified silicates Sol– gel |
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