Isonitrile derivatives of macromolecules containing hydroxyl groups
    11.
    发明授权
    Isonitrile derivatives of macromolecules containing hydroxyl groups 失效
    含有羟基的大分子的异腈衍生物

    公开(公告)号:US4303786A

    公开(公告)日:1981-12-01

    申请号:US929229

    申请日:1978-07-31

    摘要: The present invention relates to novel isocyano derivatives of linear or cross-linked, natural or synthetic macromolecules, the derivatives being of the general formula P--O--Q--NC, wherein P is the macromolecular backbone, the oxygen atom is part of the hydroxy group, Q is a group --(CH.sub.2).sub.n --wherein n is an integer of at least 3 carbon atoms, and up to about 20 carbon atoms, or Q is an aralkyl group, to a process for preparing such derivatives and to a process of linking to same biologically active proteins and to the products thus obtained.

    摘要翻译: 本发明涉及线型或交联天然或合成大分子的新型异氰酸衍生物,其衍生物为通式POQ-NC,其中P为高分子主链,氧原子为羟基的一部分,Q为 一个 - (CH 2)n - ,其中n是至少3个碳原子的整数,以及至多约20个碳原子,或Q是一个芳烷基,用于制备这种衍生物的方法和连接到其上的方法 生物活性蛋白质和由此获得的产物。

    Semiconductor optical amplifier
    15.
    发明授权
    Semiconductor optical amplifier 失效
    半导体光放大器

    公开(公告)号:US5982531A

    公开(公告)日:1999-11-09

    申请号:US945589

    申请日:1997-10-29

    CPC分类号: H01S5/5009 H01S5/3201

    摘要: The invention concerns a semiconductor optical amplifier. The optical guide structure of this amplifier comprises a rectangular cross-section active stripe (12). Its material is homogeneous and it is subjected to a tensile strain sufficient to render the amplifier insensitive to the polarisation of the light to be amplified.The invention finds an application in optical telecommunications.

    摘要翻译: PCT No.PCT / FR97 / 00373 Sec。 371日期1997年10月29日第 102(e)日期1997年10月29日PCT 1997年3月3日PCT公布。 公开号WO97 / 33353 日期:1997年9月12日本发明涉及一种半导体光放大器。 该放大器的光导结构包括矩形截面有源条纹(12)。 其材料是均匀的,并且其经受足够的拉伸应变以使放大器对待放大的光的偏振不敏感。 本发明在光通信中发现了一种应用。

    Method of etching a substrate by means of chemical beams
    16.
    发明授权
    Method of etching a substrate by means of chemical beams 失效
    通过化学束蚀刻基板的方法

    公开(公告)号:US5916822A

    公开(公告)日:1999-06-29

    申请号:US694112

    申请日:1996-08-08

    摘要: In order to facilitate resuming molecular beam epitaxy after etching a substrate or an epitaxial layer, the etching method is implemented in an ultra-high vacuum, and it consists in producing at least two simultaneous chemical beams converging towards the substrate or the layer, the beams being formed of substances, each of which is capable of reacting with elements of different types in the substrate or the layer so as to form volatile compounds. Application in particular to manufacturing photonic and optoelectronic components.

    摘要翻译: 为了便于在蚀刻衬底或外延层之后恢复分子束外延,蚀刻方法在超高真空中实现,并且其包括产生朝向衬底或层会聚的至少两个同时化学束, 由物质形成,每种物质能够在基材或层中与不同类型的元素反应,以形成挥发性化合物。 特别适用于制造光子和光电子元件。

    Novel substituted polyamides and process for producing them
    17.
    发明授权
    Novel substituted polyamides and process for producing them 失效
    新型取代聚酰胺及其制备方法

    公开(公告)号:US3970597A

    公开(公告)日:1976-07-20

    申请号:US476320

    申请日:1974-06-04

    IPC分类号: C08G69/48 C08G69/50 C08G18/00

    CPC分类号: C08G69/48

    摘要: Novel substituted polyamides of the general formula ##EQU1## wherein A and B, which may be identical or different, are the hydrocarbon backbone groups of the formula --(CH.sub.2).sub.n --, where n is an integer, R.sub.2 and R.sub.3 are the residues of an aldehyde R.sub.2 --CHO or of an isocyanide R.sub.3 --N.tbd.C, where R.sub.2 and R.sub.3 are aliphatic, aromatic or heterocyclic residues of the respective aldehyde or isocyanide, or where R.sub.3 is a chromophoric moiety. R.sub.2 and R.sub.3 can be substituted, and amongst the possible substituents there may be R.sub.3 designating --(CH.sub.2).sub.n --NHCO--CHR.sub.2 --N(CO)(R.sub.4)--X, where R.sub.4 is the residue of a monocarboxylic or dicarboxylic acid and X is the lysyl residue of a protein, which may be biologically active, or the residue of a low-molecular weight compound containing a primary amine moiety. Preferred polyamides are various types of nylons. Amongst proteins chemically bound to the polyamide there may be mentioned enzymes, antibodies and peptide hormones. When R.sub.3 is a chromophoric moiety, the product is a chemically dyed polyamide. The invention relates also to a process for the production of such novel substituted polyamides.

    摘要翻译: 通式-CONH-A-CONH-B-CO-NA-CONH-B-CONH-A- | CH-R2 | CO-NH-R3的新型取代聚酰胺其中A和B可以相同或不同, 是式 - (CH 2)n - 的烃主链基团,其中n是整数,R 2和R 3是醛R 2 -CHO或异氰酸酯R 3 -N N BOND C的残基,其中R 2和R 3是脂族基, 相应醛或异氰化物的芳族或杂环残基,或其中R3是发色部分。 R2和R3可以被取代,并且在可能的取代基中可以有R3表示 - (CH 2)n -NHCO-CHR 2 -N(CO)(R 4)-X,其中R 4是一元羧酸或二羧酸的残基,X 是可能是生物活性的蛋白质的赖氨酰残基,或含有伯胺部分的低分子量化合物的残基。 优选的聚酰胺是各种类型的尼龙。 与聚酰胺化学结合的蛋白质中,可以提及酶,抗体和肽激素。 当R3是发色部分时,产物是化学染色的聚酰胺。 本发明还涉及生产这种新型取代的聚酰胺的方法。

    Method of manufacturing an integrated optical component comprising a
thick waveguide coupled to a thin waveguide
    19.
    发明授权
    Method of manufacturing an integrated optical component comprising a thick waveguide coupled to a thin waveguide 有权
    制造集成光学部件的方法,其包括耦合到薄波导的厚波导

    公开(公告)号:US6040246A

    公开(公告)日:2000-03-21

    申请号:US148480

    申请日:1998-09-08

    摘要: To form an integrated optical component comprising a thick waveguide coupled to a thin waveguide, the method consists in:depositing a first guiding layer of said thick waveguide on a substrate;locally etching said first guiding layer over a portion allocated both to a coupling interface and to the thin waveguide;depositing a second guiding layer on the first guiding layer and on the locally etched portion so as to form said thick waveguide in a manner such that it has a maximum thickness in a first zone, a graded-thickness section in a second zone, and a reduced-thickness section in a third zone;locally etching the second guiding layer over a portion of the third zone, said portion being allocated to the thin waveguide; anddepositing a third guiding layer in said portion of said third zone so as to form said thin waveguide.

    摘要翻译: 为了形成包括耦合到薄波导的厚波导的集成光学部件,该方法包括:在衬底上沉积所述厚波导的第一引导层; 在分配给耦合接口和薄波导的部分上局部蚀刻所述第一引导层; 在第一引导层和局部蚀刻部分上沉积第二引导层,以便形成所述厚波导,使得其在第一区域具有最大厚度,在第二区域中具有最大厚度,在第二区域中具有渐变厚度部分, 第三区的厚度减薄部分; 在第三区域的一部分上局部蚀刻第二引导层,所述部分被分配给薄波导; 以及在所述第三区的所述部分中沉积第三引导层以形成所述薄波导。

    Photonic diplex transceiver
    20.
    发明授权
    Photonic diplex transceiver 失效
    光子双工收发器

    公开(公告)号:US5712864A

    公开(公告)日:1998-01-27

    申请号:US616382

    申请日:1996-03-15

    摘要: A semiconductor photonic diplex transceiver includes a laser to generate a first optical signal having a certain wavelength and a photodetector to detect a second optical signal having another wavelength. The diplex transceiver also includes an absorber of the first signal disposed between the laser and the detector which form integral parts of an optical waveguide. The laser generates the first signal in the form of a continuous wave and is disposed between the absorber and a selective modulator of the first signal. This reduces the problems of optical and electrical crosstalk between the transmit and receive functions. Applications include user premises optical fiber transmit/receive equipments.

    摘要翻译: 半导体光子二重收发器包括用于产生具有一定波长的第一光信号的激光器和用于检测具有另一波长的第二光信号的光电检测器。 双工收发器还包括设置在激光器和检测器之间的第一信号的吸收器,其形成光波导的整体部分。 激光器以连续波的形式产生第一信号,并且设置在吸收器和第一信号的选择性调制器之间。 这减少了发射和接收功能之间的光和电串扰的问题。 应用包括用户住宅光纤发射/接收设备。