Abstract In this work, long-period waveguide grating-based tunable wavelength filters using organic-inorganic grafting poly(methyl methacrylate) (PMMA) materials are designed and fabricated by metal-cladding directly defined technique. The thermal stabilities and optical properties of the organic-inorganic grafting PMMA core materials are analyzed. Structures and performance parameters of the waveguide gratings and self-electrode heaters are designed and simulated. The contrast of the filter is about 15 dB and the resonant wavelength can be tuned by different electric powers applied to the metal-cladding self-electrode heaters. The temperature sensitivity is 3.5 nm/℃ and the switching time is about 1 ms. The technique is very suitable for realizing the optoelectronic integrated wavelength-division-multiplexing systems.
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 61575076, 61475061, and 61405070), the Fundamental Research Funds for the Central Universities, China (Grant No. JCKY-QKJC08), the Science and Technology Development Plan of Jilin Province, China (Grant Nos. 20130522151JH, 20140519006JH, and 20160520091JH), and the China Postdoctoral Science Foundation (Grant No. 2015M571362).
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