FASERAUSTRITTSELEMENT
    1.
    发明公开

    公开(公告)号:EP4431990A2

    公开(公告)日:2024-09-18

    申请号:EP24183678.2

    申请日:2020-06-19

    IPC分类号: G02B6/34

    摘要: Die vorliegende Erfindung betrifft ein Faseraustrittselement (1) mit einer Mehrzahl von Glasfasern (10) mit jeweils wenigstens einem Kern (10a), welcher jeweils ausgebildet ist, eine Signallichtstrahlung (A) zu führen, und mit wenigstens einem optischen Element (14), vorzugsweise einem optischen Fenster (14), einer optischen Linse (14), einem optischen Strahlteiler (14) oder einem optischen Prisma (14), welches mit jeweils einem offenen Ende (11) der Kerne (10a) der Glasfasern (10) verbunden und ausgebildet ist, die Signallichtstrahlung (A) von den offenen Enden (11) der Kerne (10a) der Glasfasern (10) zu erhalten und als Austrittsstrahlungen (A') über wenigstens eine Austrittsfläche (14b) nach außerhalb abzugeben, wobei die offenen Enden (11) der Kerne (10a) der Glasfasern (10), vorzugsweise ferner die offenen Enden (11) von die Kerne (10a) im Wesentlichen umschließenden Mänteln (10b) der Glasfasern (10), mit jeweils einer Eindringtiefe (W), vorzugsweise gegenüber einer Eintrittsfläche (14a) des optischen Elements (14), innerhalb des Materials des optischen Elements (14) angeordnet sind, wobei wenigstens das Material der offenen Enden (11) der Kerne (10a) der Glasfasern (10), vorzugsweise ferner das Material der offenen Enden (11) der Mäntel (10b) der Glasfasern (10), mit dem Material des optischen Elements (14) verschmolzen ist. Das Faseraustrittselement (1) ist dadurch gekennzeichnet, dass die offenen Enden (11) der Kerne (10a) der Glasfasern (10) in einer Ebene senkrecht zur länglichen Erstreckungsrichtung der Glasfaser (10) angeordnet sind, wobei vorzugsweise wenigstens einige, vorzugsweise alle, der offenen Enden (11) der Kerne (10a) der Glasfasern (10) zueinander linienförmig, V-förmig, kreisförmig, halbkreisförmig, bogenförmig, bündelförmig, hohlzylinderförmig oder rechteckig angeordnet sind.

    OPTICAL ELEMENT AND OPTICAL CONNECTOR
    4.
    发明公开

    公开(公告)号:EP3404458A1

    公开(公告)日:2018-11-21

    申请号:EP18170069.1

    申请日:2018-04-30

    发明人: WADA, Kazuhiro

    IPC分类号: G02B6/38 G02B6/32 G02B6/42

    摘要: To provide an optical connector (20, 120) and an optical element used for the optical connector (20, 120), which are inexpensive and capable of suppressing a loss at the time of environmental temperature change.
    An optical element to be coupled to a ferrule (21) that holds an optical fiber (11) for single mode, the optical element includes: a glass-made optical portion (30a, 130a) in which a plurality of lenses is formed; and a resin-made holder (30b, 130b) that holds the optical portion (30a, 130a), wherein the lens is positioned with respect to an end portion of the optical fiber (11) held by the ferrule (21), using at least a part of the holder (30b, 130b).

    DISTRIBUTED FIBER SENSORS AND SYSTEMS EMPLOYING MULTICORE OPTICAL FIBERS

    公开(公告)号:EP3377926A1

    公开(公告)日:2018-09-26

    申请号:EP16801935.4

    申请日:2016-11-14

    摘要: A fiber sensor that includes: an optical fiber configured for one of single or few mode operation at a wavelength from about 300 nm to about 2000 nm, and further defined by a transmission end, a scattering end, a fiber outer diameter and a fiber length from about 10 m to about 100 km. The fiber includes: a plurality of cores having equivalent core diameters and compositions; and a cladding defined by the fiber outer diameter and surrounding the cores. The fiber is tapered at the transmission end to define a tapered portion characterized by a tapered fiber out diameter and tapered core diameters smaller than the respective fiber outer diameter and core diameters. Further, the transmission end of the fiber exhibits a total backscattered signal that emanates from the cores after light from a single source has been injected into the cores at the transmission end of the fiber.

    OPTICAL PROBE AND ASSEMBLY THEREOF
    7.
    发明公开

    公开(公告)号:EP3376270A1

    公开(公告)日:2018-09-19

    申请号:EP18161608.7

    申请日:2018-03-13

    IPC分类号: G02B6/26 A61B5/00 G02B27/09

    摘要: An optical probe (200) includes a lens combination, an optical fiber assembly (205), and a cover (260). The lens combination includes a first lens (220) and a second lens (650). The first lens has a generally planar first lens surface (215) defining an oval edge. The second lens has a generally planar second lens surface (629) operatively coupled to the first lens surface. The second lens has four primary edges (681, 682, 683, 684) and at least two secondary edges (686, 687, 688, 689) connecting pairs of the primary edges. Each primary edge extends in substantially a straight line between two spaced-apart points at the oval edge of the first lens. The optical fiber and the lens combination are configured such that a light beam exiting the optical fiber enters the lens combination at an entering surface of the first lens, passes through the first lens and exits the first lens at the first lens surface. The cover circumferentially surrounds the optical fiber assembly. The lens combination is also presented as a separate entity. The probe further comprises a first adhesive (730) that attaches the first lens, or first optical component, to the second lens, or second optical component, the first adhesive at least partially circumferentially surrounding the second end surface of the second optical component. The probe also comprises a second adhesive (735) that attaches the second optical component to the cover.

    Method of computing an effective bandwidth of a multimode fiber

    公开(公告)号:EP2584388B1

    公开(公告)日:2018-09-19

    申请号:EP11306359.8

    申请日:2011-10-20

    申请人: Draka Comteq BV

    IPC分类号: G02B6/028

    摘要: The invention concerns a method of assessing power penalty at a given bit error rate of a multimode fiber (4), comprising at least a step (S1) of differential mode delay measurement, measuring a set of elementary fiber responses corresponding respectively to different offset launches (r) of light over the core radius into multimode fiber (4), a step (S2) of generating a global fiber response by applying, to the set of elementary fiber responses, a set of weighting coefficients and delays respectively depending on the different offset launches (r) of the elementary fiber responses, a step (S5) of computing a parameter representative of a fiber power penalty from the global fiber response, wherein, in the step of generating a global fiber response, the set of weighting coefficients includes several subsets (W(r, 1) to W(r, 6)) of weighting coefficients being time delayed relatively to one another, with at least one relative time delay that is not set to zero, weighting coefficients of each subset respectively depending on the different offset launches (r) of the elementary fiber responses.

    OPTICAL MODULE
    10.
    发明公开

    公开(公告)号:EP3229053A4

    公开(公告)日:2018-07-25

    申请号:EP15865914

    申请日:2015-11-30

    发明人: IZAWA ATSUSHI

    IPC分类号: G02B6/42 G02B6/26

    摘要: An optical module includes a first module having a first end surface provided with a first guide hole and a second end surface opposite the first end surface, wherein the first module includes first optical fibers each provided penetrating the first module from the first end surface to the second end surface and having an axial center aligned based on a positional relationship to the first guide hole, and a first optical element having an axial center aligned based on a positional relationship to the first guide hole.