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    • 3. 发明授权
    • Optical gain equalizer, and optical amplifier and wavelength-division multiplex transmitter both comprising the optical gain equalizer
    • 光增益均衡器,以及包括光增益均衡器的光放大器和波分复用发射机
    • US06377390B1
    • 2002-04-23
    • US09486562
    • 2000-03-03
    • Kazuyo MizunoShyoichi OzawaOsamu AsoShu NamikiIkuo OhtaYuichiro Irie
    • Kazuyo MizunoShyoichi OzawaOsamu AsoShu NamikiIkuo OhtaYuichiro Irie
    • H01S300
    • H04B10/2941H01S3/06754H01S3/06758H01S3/10023H01S2301/04H04J14/0221
    • In an optical gain equalizer according to the present invention, a plurality of etalon filters 1 and one ore more fiber gratings 2 or dielectric multilayer filters 3 are arranged in line, and a beam of light externally applied is passed through the etalon filters 1 and the fiber gratings 2 or dielectric multilayer filters 3 and outputted to the outside, and the etalon filters 1 have sinusoidal wave loss characteristic of the same amplitude and period as those of the term obtained by Fourier series expansion of the loss wavelength characteristic for gain flattening, and the one or more fiber gratings 2 or dielectric multilayer filters 3 compensate the ripple component remaining as the difference between the loss wavelength characteristic for gain flattening and the loss wavelength characteristic owing to the etalon filters 1. An optical amplifying device 14 is constituted by combining an optical amplifier 5 with the optical gain equalizer 4. A wavelength-division multiplex transmitter is constituted by using the optical amplifying device 14.
    • 在根据本发明的光学增益均衡器中,多个标准具滤光器1和一个以上的光纤光栅2或电介质多层滤光器3排列成一列,外部施加的光束通过标准具过滤器1和 光纤光栅2或电介质多层滤波器3并输出到外部,并且标准具滤波器1具有与通过用于增益平坦化的损耗波长特性的傅立叶级数扩展获得的项相同的振幅和周期的正弦波损耗特性, 一个或多个光纤光栅2或电介质多层滤波器3补偿作为增益平坦化的损耗波长特性与由标准具滤波器1引起的损耗波长特性之间的差异剩余的纹波分量。光放大装置14是将 具有光学增益均衡器的光放大器5 通过使用光放大装置14构成。
    • 7. 发明授权
    • Process for the production of carbonyl compound
    • 生产羰基化合物的方法
    • US6066762A
    • 2000-05-23
    • US997552
    • 1997-12-23
    • Noriyuki YonedaTakeshi MinamiYoshihiro NakagawaIkuo OhtaAkihisa YamaguchiHideki SugiyamaFumihiko Uemura
    • Noriyuki YonedaTakeshi MinamiYoshihiro NakagawaIkuo OhtaAkihisa YamaguchiHideki SugiyamaFumihiko Uemura
    • C07C51/12
    • C07C51/12
    • A process for the production of a carbonyl compound such as acetic acid by reacting a carbonylatable compound such as methanol with a carbon monoxide in the presence of a carbonylation catalyst containing a noble metal complex supported on a porous, cross-linked vinylpyridine resin at a temperature of 140-250.degree. C., a carbon monoxide partial pressure of 7-30 kg/cm.sup.2 and a hydrogen partial pressure of 0.1-5 kg/cm.sup.2 to obtain a liquid product containing the carbonyl compound and an unreacted CO-containing gas product. The water content and the carbonylation degree of the liquid product within the reactor are maintained at 0.5-10% by weight and 0.5-0.9, respectively, The carbonyl compound is separated from the liquid product in a flasher and/or a distillation tower formed of titanium or a titanium-palladium alloy. The liquid product is introduced into a pressure reducing valve and then mixed with the CO-containing gas product before being fed to the flasher and/or distillation tower.
    • 一种通过使羰基化合物如甲醇与一氧化碳在羰基化催化剂存在下反应生产羰基化合物的方法,所述羰基化催化剂含有负载在多孔交联的乙烯基吡啶树脂上的贵金属配合物, 140-250℃,一氧化碳分压为7-30kg / cm2,氢分压为0.1-5kg / cm2,得到含有羰基化合物和未反应的含CO气体产物的液体产物。 反应器内的液体产物的水含量和羰基化度分别保持在0.5-10重量%和0.5-0.9。羰基化合物与闪蒸器和/或蒸馏塔中的液体产物分离,由 钛或钛 - 钯合金。 将液体产物引入减压阀中,然后在加入闪蒸器和/或蒸馏塔之前与含CO气体产物混合。