Quasi-single-mode optical fiber
    1.
    发明授权

    公开(公告)号:US10983267B2

    公开(公告)日:2021-04-20

    申请号:US16269112

    申请日:2019-02-06

    Abstract: A quasi-single-mode (QSM) optical fiber includes a core and a cladding surrounding the core. The core includes a centerline and an outer edge. The cladding includes an interior edge and an exterior edge. The cladding has a cladding outer diameter defined by the exterior edge of the cladding. The cladding outer diameter may be in the range of greater than 170 μm to about 200 μm. The QSM fiber has a cabled cutoff wavelength that is greater than about 1530 nm. The core and the cladding support a fundamental mode LP01 and a higher-order mode LP11. The fundamental mode LP01 has an effective area Aeff>150 μm2.

    Optical fiber span with low differential mode delay

    公开(公告)号:US09857529B2

    公开(公告)日:2018-01-02

    申请号:US15416073

    申请日:2017-01-26

    CPC classification number: G02B6/0288 G02B6/02009 G02B6/02042 G02B6/0365

    Abstract: A fiber span comprising: a first optical fiber and a second optical fiber coupled to the first optical fiber, both fibers comprising the an inner core region with maximum refractive index delta, Δ0≦0.1% and an outer radius R1>4.5 μm, an outer core region with an outer radius R2 and a minimum refractive index delta Δ1 and alpha value α≧5, wherein Δ1 ΔR,MIN; the first fiber introducing differential mode delay DMD1 for wavelengths between 1525 and 1570 nm such that |DMD1|≦100 ps/km, and a first differential mode delay slope DMDS1; the second fiber introducing differential mode delay DMD2 for wavelengths between 1525 and 1570 nm such that |DMD2|≦100 ps/km, and a second differential mode delay slope DMDS2 that has an opposite sign from the first dispersion slope DMDS1; wherein total differential mode delay provided by the first fiber in conjunction with the second fiber is DMDtot=DMD1+DMD2, and −1.0 ps/km

    PHOTONIC LANTERNS COMPRISING OPTICAL FIBERS HAVING UP-DOWN DOPED CLADDINGS

    公开(公告)号:US20240345325A1

    公开(公告)日:2024-10-17

    申请号:US18294201

    申请日:2022-07-28

    CPC classification number: G02B6/262

    Abstract: A photonic lantern includes three or more optical fibers housed within a glass capillary, each optical fiber includes a core and a cladding. The photonic lantern tapers between a first and second end such that a diameter of the glass capillary is greater at the first end than the second end and the cladding of at least two of the three or more optical fibers comprises an up-down doped cladding doped with a dopant combination that includes an up-dopant and a down-dopant. The up-dopant increases and the down-dopant decreases the effective refractive index of the up-down doped cladding. The dopant combination decreases a material viscosity of the up-down doped cladding such that a difference in the effective refractive index between a silica cladding and the up-down doped cladding is greater in a tapered region and at the second end than at the first end.

    QUANTUM-DOT LED BACKLIGHT MODULE FOR LED DISPLAYS

    公开(公告)号:US20200161509A1

    公开(公告)日:2020-05-21

    申请号:US16627464

    申请日:2018-06-29

    Abstract: The QD LED module (10) disclosed herein includes a support assembly (40), a circuit board (20), an LED (30) operably supported by the circuit board, wherein the LED emits blue light (36G). The QD LED module also has a QD structure (60) supported by the support assembly and axially spaced apart from the LED surface. The QD structure has an active area (AR) that includes a first region (R1) of QD material and a second region (R2) that has no QD material. A first portion of the blue light passes through the first region and is converted to red light (36R) and green light (36G). A second portion of the blue light passes through the second region. The QD material has a CIE color point that is shifted toward the yellow portion of the color space.

    RAMAN-ENHANCED TRANSMISSION FIBER
    7.
    发明申请

    公开(公告)号:US20170146733A1

    公开(公告)日:2017-05-25

    申请号:US15355790

    申请日:2016-11-18

    Abstract: According to some embodiments an optical fiber comprising: (I) a silica based core having: an inner core region with maximum refractive index delta of the core, Δ0 in % measured relative to pure SiO2≦0.1%, and an outer core region with a minimum refractive index delta Δ1, where Δ1 Aeffλ=1475, and (Aeffλ=1525−Aeffλ=1475)/Aeffλ=1525≧0.07; and (II) an annular cladding surrounding the core, the cladding including: (i) a low index ring surrounding the core and having a minimum refractive index delta ΔRMIN, where ΔR,MIN≧Δ1; and (ii) an outer cladding with a refractive index delta ΔOuter-Clad relative to pure silica, such that ΔOuter-Clad>ΔR,MIN.

Patent Agency Ranking