LOW COST INGAAIN BASED LASERS
    12.
    发明公开
    LOW COST INGAAIN BASED LASERS 审中-公开
    成本LASER ON铟镓铝氮基

    公开(公告)号:EP1917687A2

    公开(公告)日:2008-05-07

    申请号:EP06802250.8

    申请日:2006-08-24

    IPC分类号: H01L33/00

    摘要: A method and structure for producing lasers (10) having good optical wavefront characteristics, such as are needed for optical storage includes providing a laser (14) wherein an output beam emerging from the laser front facet (16) is essentially unobstructed by the edges of the semiconductor chip (12) m order to prevent detrimental beam distortions The semiconductor laser structure (14) is epitaxially grown on a substrate (12) with at least a lower cladding layer (20), an active layer (22), an upper cladding layer (24), and a contact layer (26) Dry etching through a lithographically defined mask produces a laser mesa (14) of length lc and width bm Another sequence of lithography and etching is used to form a ndge structure (32) with width w on top of the mesa (14) The etching step also forming mirrors, or facets (16, 18), on the ends of the laser waveguide structures (32) The length I5 and width bs of the chip (12) can be selected as convenient values equal to or longer than the waveguide length lc and mesa width bm respectively The waveguide length and width are selected so that for a given defect density D, the yield YD is larger than 50 %

    WAVELENGTH CONVERTER/INVERTER
    14.
    发明公开
    WAVELENGTH CONVERTER/INVERTER 有权
    波长转换器/逆变器

    公开(公告)号:EP1820060A1

    公开(公告)日:2007-08-22

    申请号:EP04810530.8

    申请日:2004-12-01

    发明人: BEHFAR, Alex, A.

    IPC分类号: G02F2/02 H01S3/083

    摘要: A ring cavity laser (20) has at least two facets (32,34) and a mechanism is provided to produce unidirectional propagation and light emission at a first wavelength. A source of laser light (60) at a second wavelength is injected into the cavity to reverse the direction of propagation and to produce emission at the second wavelength.

    摘要翻译: 环形腔激光器(20)具有至少两个小面(32,34),并且提供机构以产生第一波长的单向传播和光发射。 将第二波长的激光源(60)注入空腔中以反转传播方向并在第二波长处产生发射。

    CURVED WAVEGUIDE RING LASER
    16.
    发明公开
    CURVED WAVEGUIDE RING LASER 有权
    环形激光器弯曲波导

    公开(公告)号:EP1413016A2

    公开(公告)日:2004-04-28

    申请号:EP02746451.0

    申请日:2002-06-25

    发明人: BEHFAR, Alex

    IPC分类号: H01S3/083 H01S5/00

    CPC分类号: H01S5/1071 Y10S438/94

    摘要: A ring-type laser (40) including a traveling wave cavity which incorporates at least first and second straight cavity sections (42, 44) and at least one curved cavity sections (48). Corresponding first ends of the straight cavity sections are interconnected at a first light-emitting facet (62), and second ends of the straight sections are interconnected by the curved section (48). Additional curved and straight sections can be linked to provide various ring configurations.

    BINOCLE
    18.
    发明公开
    BINOCLE 审中-公开
    KNEIFER

    公开(公告)号:EP3120185A1

    公开(公告)日:2017-01-25

    申请号:EP15711189.9

    申请日:2015-03-20

    申请人: Binoptics

    摘要: Pince-nez moulded in one piece, comprising a substantially planar structure which has a first rim provided with a first lens and a second rim provided with a second lens, said structure having a plane which passes through said first and second rims and said first and second lenses, said first and second rims each being extended by a linkage which connects them together, said linkage being designed to be in contact with a holding element intended to be placed on the nose of a user, characterized in that said linkage is curved and has a first and a second point of inflection.

    摘要翻译: 薄片模制成一体,包括基本上平面的结构,其具有设置有第一透镜的第一边缘和设置有第二透镜的第二边缘,所述结构具有穿过所述第一和第二边缘以及所述第一和第二透镜的平面 第二透镜,所述第一和第二边缘各自通过将它们连接在一起的连杆延伸,所述连杆被设计成与要被放置在使用者的鼻子上的保持元件接触,其特征在于,所述连接件是弯曲的, 有第一个和第二个拐点。