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Compact 2×2 parabolic multimode interference thermo–optic switches based on fluorinated photopolymer
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作者 王继厚 陈长鸣 +7 位作者 胡珂玮 程儒 王春雪 衣云骥 孙小强 王菲 李智勇 张大明 《Chinese Physics B》 SCIE EI CAS CSCD 2019年第4期216-223,共8页
In this work, a dual-side parabolic structural(DSPS) multimode interference(MMI) thermo–optic(TO) waveguide switch is designed and fabricated by using novel low-loss fluorinated photopolymer materials. Comparing with... In this work, a dual-side parabolic structural(DSPS) multimode interference(MMI) thermo–optic(TO) waveguide switch is designed and fabricated by using novel low-loss fluorinated photopolymer materials. Comparing with the traditional dual-side linear structural(DSLS) MMI device, the effective length of the MMI coupling region proposed can be effectively reduced by 40%. The thermal stability of the waveguide material is analyzed, and the optical characteristics of the switching chip are simulated. The actual performances of the entire MMI switch are measured with an insertion loss of7 dB, switching power of 15 m W and an extinction ratio of 28 dB. In contrast to the traditional MMI optical switch, the new type of parabolic structural MMI TO waveguide switch exhibits lower power consumption and larger extinction ratio. The compact fluorinated polymer MMI TO switches are suitable well for realizing miniaturization, high-properties, and lower cost of photonic integrated circuits. 展开更多
关键词 FLUORINATED PHOTOPOLYMER materials PARABOLIC structural MMI thermo–optic waveguide switches
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延髓背外侧综合征3例
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作者 王继厚 曲艳芬 《吉林医学信息》 1997年第2期18-18,共1页
关键词 延髓背外侧综合征 病例报告 影像学诊断
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蔗渣通过化学前处理制造酒精的糖化发酵技术
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作者 王继厚 赵雪松 《中国酿造》 CAS 北大核心 1991年第2期15-16,共2页
随着世界能源的日趋紧张,不少国家尤其是欧美、日本采用燃料酒精部分代替汽油,制成所谓“汽油醇”用作汽车的燃料。而酒精的生产通常要耗用大量的粮食及糖质原料,目前虽有用石油裂解物合成酒精,但石油本身就是能源,而且合成酒精成本较高... 随着世界能源的日趋紧张,不少国家尤其是欧美、日本采用燃料酒精部分代替汽油,制成所谓“汽油醇”用作汽车的燃料。而酒精的生产通常要耗用大量的粮食及糖质原料,目前虽有用石油裂解物合成酒精,但石油本身就是能源,而且合成酒精成本较高,这使酒精的生产受到一定的限制。第二次世界大战后,一些国家如苏联开发了以取之不尽的植物纤维为原料通过水解方法制造燃料酒精的新途径。 展开更多
关键词 蔗渣 化学处理 酒精 糖化 发酵
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采用真空蒸发技术提高酵母得率的研究
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作者 王继厚 房志杰 成彦 《林产化工通讯》 北大核心 1995年第3期16-18,共3页
本文研究了木材水解酒精蒸馏废液真空蒸发除去低沸点物质,增加含糖浓度,提高酵母增殖得率的条件。
关键词 木材水解 真空蒸发 酵母
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Tunable wavelength filters using polymer long-period waveguide gratings based on metal-cladding directly defined technique
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作者 王继厚 陈长鸣 +5 位作者 郑洋 王希斌 衣云骥 孙小强 王菲 张大明 《Chinese Physics B》 SCIE EI CAS CSCD 2017年第2期268-273,共6页
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 defin... 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 d B 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. 展开更多
关键词 organic–inorganic grafting materials polymer optical waveguide long-period grating filter metalcladding defined technique
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发酵法生产新型甜味剂赤藓醇
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作者 王继厚 赵雪松 《杭州食品科技》 1994年第3期18-20,10,共4页
关键词 发酵法 甜味剂 赤藓醇
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