Optical fiber for amplification
    1.
    发明授权
    Optical fiber for amplification 有权
    用于放大的光纤

    公开(公告)号:US08102596B2

    公开(公告)日:2012-01-24

    申请号:US12160009

    申请日:2006-12-27

    摘要: Provided is an erbium doped optical fiber (EDF) for amplification which allows an easy estimation of the amplification performance and high production stability. The fiber includes a core and a cladding. The core is mainly made of silica glass and doped with erbium at a concentration of 500 wtppm or more and 2500 wtppm or less. In the fiber, the cutoff wavelength is 850 nm or more and 1450 nm or less, the mode field diameter is 4.5 μm or more and 6.5 μm or less, the polarization mode dispersion is not more than 0.1 ps per 10 m, the coordination number of oxygen elements around an erbium element in the core is one or more and eight or less, and the bond length between erbium and oxygen is 0.225 nm or more and 0.235 or less.

    摘要翻译: 提供了用于放大的掺铒光纤(EDF),其允许容易地估计放大性能和高生产稳定性。 纤维包括芯和包层。 核心主要由石英玻璃制成,掺杂浓度为500重量ppm以上且2500重量ppm以下的铒。 在光纤中,截止波长为850nm以上且1450nm以下,模场直径为4.5μm以上且6.5μm以下,偏振模色散不超过0.1μm/10μm,配位数 核中的铒元素周围的氧元素为一个以上且八个以下,铒与氧之间的键长为0.225nm以上且0.235以下。

    OPTICAL FIBER FOR AMPLIFICATION
    2.
    发明申请
    OPTICAL FIBER FOR AMPLIFICATION 有权
    用于放大的光纤

    公开(公告)号:US20090185263A1

    公开(公告)日:2009-07-23

    申请号:US12160009

    申请日:2006-12-27

    IPC分类号: H01S3/067

    摘要: Provided is an erbium doped optical fiber (EDF) for amplification which allows an easy estimation of the amplification performance and high production stability. The fiber includes a core and a cladding. The core is mainly made of silica glass and doped with erbium at a concentration of 500 wtppm or more and 2500 wtppm or less. In the fiber, the cutoff wavelength is 850 nm or more and 1450 nm or less, the mode field diameter is 4.5 μm or more and 6.5 μm or less, the polarization mode dispersion is not more than 0.1 ps per 10 m, the coordination number of oxygen elements around an erbium element in the core is one or more and eight or less, and the bond length between erbium and oxygen is 0.225 nm or more and 0.235 or less.

    摘要翻译: 提供了用于放大的掺铒光纤(EDF),其允许容易地估计放大性能和高生产稳定性。 纤维包括芯和包层。 核心主要由石英玻璃制成,掺杂浓度为500重量ppm以上且2500重量ppm以下的铒。 在光纤中,截止波长为850nm以上且1450nm以下,模场直径为4.5μm以上至6.5μm以下,偏振模色散不超过0.1μm/10μm,配位数 核中的铒元素周围的氧元素为一个以上且八个以下,铒与氧之间的键长为0.225nm以上且0.235以下。

    Optical amplifier fiber
    3.
    发明申请
    Optical amplifier fiber 审中-公开
    光放大器光纤

    公开(公告)号:US20060262387A1

    公开(公告)日:2006-11-23

    申请号:US11434073

    申请日:2006-05-16

    IPC分类号: H01S3/00 H04B10/12

    CPC分类号: H01S3/06716

    摘要: Provided is an optical amplifier fiber in which both increasing output light power and sufficiently inhibiting the occurrence of nonlinear optical phenomenon can be compatibly achieved. In addition, an optical amplifier and light source equipment, in which such optical amplifier fiber is used, are provided. The optical amplifier fiber comprises (1) a core region doped with an aluminum element in the range of 1 wt % to 10 wt %, an erbium element in the range of 1000 wt. ppm to 5000 wt. ppm, and a fluorine element, the core region having an outer diameter in the range of 10 μm to 30 μm, and (2) a cladding region surrounding the core region and having a refractive index that is lower than the core region, wherein the relative refractive index difference of the core region relative to the cladding region is 0.3% or more and 2.0% or less.

    摘要翻译: 提供了可以兼容地实现增加输出光功率并充分抑制非线性光学现象的发生的光放大器光纤。 此外,提供了使用这种光放大器光纤的光放大器和光源设备。 光放大器光纤包括(1)掺杂有1重量%至10重量%范围的铝元素的芯区域,铒元素在1000重量%范围内。 ppm至5000wt。 ppm,以及氟元素,芯区域的外径在10μm〜30μm的范围内,(2)围绕芯区域的折射率低于芯区域的包层区域,其中, 芯区域相对于包层区域的相对折射率差为0.3%以上且2.0%以下。

    Optical amplification fiber, optical amplifier module, optical communication system and optical amplifying method
    6.
    发明授权
    Optical amplification fiber, optical amplifier module, optical communication system and optical amplifying method 失效
    光放大光纤,光放大器模块,光通信系统和光放大方法

    公开(公告)号:US07436583B2

    公开(公告)日:2008-10-14

    申请号:US10933473

    申请日:2004-09-03

    IPC分类号: H01S3/00 H01S3/10 H04B10/12

    摘要: The present invention relates to an optical amplification fiber and others capable of effectively reducing nonlinear interaction between signal channels even in transmission of multiplexed signal light containing multiple signal channels arranged in high density and also effectively reducing bending loss. An optical amplification module has an optical isolator, a WDM coupler, an Er-doped optical fiber (EDF) as an optical amplification fiber, a WDM coupler, and an optical isolator, which are arranged in order on a signal light propagation path from an input connector to an output connector, and further has a pumping light source connected to the WDM coupler and a pumping light source connected to the other WDM coupler. The EDF, at the wavelength of 1607 nm, has a mode field diameter (MFD) of 10 μm or more to the fundamental mode and a MAC number (=MFD/cutoff wavelength) of 6.8 or less to the fundamental mode.

    摘要翻译: 本发明涉及一种光放大光纤和其他能够有效降低信号通道之间的非线性相互作用的技术,即使在包含以高密度布置的多个信号通道的多路复用信号光的传输中,并且还有效地减少了弯曲损耗。 光放大模块具有光隔离器,WDM耦合器,作为光放大光纤的掺铒光纤(EDF),WDM耦合器和光隔离器,它们依次布置在信号光传播路径上 输入连接器连接到输出连接器,并且还具有连接到WDM耦合器的泵浦光源和连接到另一WDM耦合器的泵浦光源。 在1607nm波长处的EDF具有基本模式的10mum以上的模场直径(MFD),与基本模式的MAC数(= MFD /截止波长)为6.8以下。

    Glass-body-producing method and optical glass body and optical fiber
    8.
    发明授权
    Glass-body-producing method and optical glass body and optical fiber 有权
    玻璃体制造方法和光学玻璃体和光纤

    公开(公告)号:US07130513B2

    公开(公告)日:2006-10-31

    申请号:US11141203

    申请日:2005-06-01

    IPC分类号: G02B6/02

    摘要: A method produces a glass body that contains a reduced amount of OH groups in the metallic-oxide-containing glass layer and that has a reduced amount of transmission loss due to OH groups when the glass body is transformed into an optical fiber. The production method produces an optical glass body. An optical fiber contains the optical glass body in at least one part of its region for guiding a lightwave. The production method includes the following steps: (a) introducing into a glass pipe a gas containing an organometallic compound and a glass-forming material; (b) decomposing the organometallic compound into an organic constituent and a metallic constituent; (c) heating and oxidizing the metallic constituent so that produced glass particles containing a metallic oxide are deposited on the inner surface of the glass pipe to form a glass-particle-deposited layer; and (d) consolidating the deposited layer to form a metallic-oxide-containing glass layer.

    摘要翻译: 一种方法产生玻璃体,其在含金属氧化物的玻璃层中含有少量的OH基团,并且当玻璃体转变成光纤时,其具有由OH基导致的传输损失量减少的玻璃体。 该制造方法产生光学玻璃体。 光纤在其区域的至少一部分中包含用于引导光波的光学玻璃体。 制造方法包括以下步骤:(a)向玻璃管内导入含有有机金属化合物和玻璃形成材料的气体; (b)将有机金属化合物分解成有机成分和金属成分; (c)加热和氧化金属成分,使得在玻璃管的内表面上沉积含有金属氧化物的玻璃颗粒,形成玻璃颗粒沉积层; 和(d)固化沉积层以形成含金属氧化物的玻璃层。

    Optical fiber preform fabricating method
    9.
    发明授权
    Optical fiber preform fabricating method 有权
    光纤预制棒制造方法

    公开(公告)号:US08381549B2

    公开(公告)日:2013-02-26

    申请号:US11921418

    申请日:2007-06-21

    IPC分类号: C03B37/018

    摘要: The present invention relates to an optical fiber preform fabricating method that makes it possible to implement a reduction in iron impurities at a low cost. The optical fiber preform fabricating method comprises a glass synthesis step for forming a glass region constituting at least a part of the core area of the optical fiber. The glass synthesis step includes a deposition step of depositing glass particles containing the Al-element inside the glass pipe by means of chemical vapor deposition, and a consolidation step of obtaining a transparent glass body from the glass soot body thus obtained. In other words, the deposition step synthesizes glass particles on the inside wall of a glass pipe by feeding raw material gas, in which the content ratio (O/Al) of the O-element and Al-element is 20 or less, into the glass pipe. Furthermore, the consolidation step obtains a transparent glass body from the glass soot body by heating the glass soot body. The transparent glass body that is formed in the consolidation step constitutes part of the core region.

    摘要翻译: 本发明涉及能够以低成本实现铁杂质的还原的光纤预制体的制造方法。 光纤预制体制造方法包括玻璃合成步骤,用于形成构成光纤的核心区域的至少一部分的玻璃区域。 玻璃合成步骤包括通过化学气相沉积在玻璃管内沉积含有Al元素的玻璃颗粒的沉积步骤,以及从由此获得的玻璃烟灰体获得透明玻璃体的固结步骤。 换句话说,沉积步骤通过将O元件和Al元素的含量比(O / Al)为20以下的原料气体进料到玻璃管的内壁上而合成玻璃粒子。 玻璃管。 此外,固结步骤通过加热玻璃烟灰体从玻璃烟灰体获得透明玻璃体。 在固结步骤中形成的透明玻璃体构成核心区域的一部分。

    Optical Fiber Preform Fabricating Method, Optical Fiber Fabricating Method and Optical Fiber
    10.
    发明申请
    Optical Fiber Preform Fabricating Method, Optical Fiber Fabricating Method and Optical Fiber 有权
    光纤预制件制造方法,光纤制造方法和光纤

    公开(公告)号:US20100071420A1

    公开(公告)日:2010-03-25

    申请号:US11921418

    申请日:2007-06-21

    IPC分类号: C03C27/00

    摘要: The present invention relates to an optical fiber preform fabricating method that makes it possible to implement a reduction in iron impurities at a low cost. The optical fiber preform fabricating method comprises a glass synthesis step for forming a glass region constituting at least a part of the core area of the optical fiber. The glass synthesis step includes a deposition step of depositing glass particles containing the Al-element inside the glass pipe by means of chemical vapor deposition, and a consolidation step of obtaining a transparent glass body from the glass soot body thus obtained. In other words, the deposition step synthesizes glass particles on the inside wall of a glass pipe by feeding raw material gas, in which the content ratio (O/Al) of the O-element and Al-element is 20 or less, into the glass pipe. Furthermore, the consolidation step obtains a transparent glass body from the glass soot body by heating the glass soot body. The transparent glass body that is formed in the consolidation step constitutes part of the core region.

    摘要翻译: 本发明涉及能够以低成本实现铁杂质的还原的光纤预制体的制造方法。 光纤预制体制造方法包括玻璃合成步骤,用于形成构成光纤的核心区域的至少一部分的玻璃区域。 玻璃合成步骤包括通过化学气相沉积在玻璃管内沉积含有Al元素的玻璃颗粒的沉积步骤,以及从由此获得的玻璃烟灰体获得透明玻璃体的固结步骤。 换句话说,沉积步骤通过将O元件和Al元素的含量比(O / Al)为20以下的原料气体进料到玻璃管的内壁上而合成玻璃粒子。 玻璃管。 此外,固结步骤通过加热玻璃烟灰体从玻璃烟灰体获得透明玻璃体。 在固结步骤中形成的透明玻璃体构成核心区域的一部分。