OPTIC COUPLER, OPTICAL FIBER LASER DEVICE, AND ACTIVE OPTICAL MODULE USING THE SAME
    2.
    发明申请
    OPTIC COUPLER, OPTICAL FIBER LASER DEVICE, AND ACTIVE OPTICAL MODULE USING THE SAME 有权
    光学耦合器,光纤激光器件和使用其的活性光学模块

    公开(公告)号:US20130243377A1

    公开(公告)日:2013-09-19

    申请号:US13615225

    申请日:2012-09-13

    Abstract: The inventive concept provides optic couplers, optical fiber laser devices, and active optical modules using the same. The optic coupler may include a first optical fiber having a first core and a first cladding surrounding the first core, a second optical fiber having a second core transmitting a signal light to the first optical fiber and a third cladding surrounding the second core, third optical fibers transmitting pump-light to the first optical fiber in a direction parallel to the second optical fiber; and a connector connected between the first optical fiber and the second optical fiber, the connector extending the third optical fibers disposed around the second optical fiber toward the first optical fiber, the connector comprising a third core connected between the first core and the second core and a fifth cladding surrounding the third core.

    Abstract translation: 本发明的概念提供光耦合器,光纤激光器件以及使用其的有源光学模块。 光耦合器可以包括具有第一芯和围绕第一芯的第一包层的第一光纤,具有向第一光纤传输信号光的第二芯和包围第二芯的第三包层的第二光纤,第三光纤 纤维在平行于第二光纤的方向上将泵浦光传输到第一光纤; 以及连接在所述第一光纤与所述第二光纤之间的连接器,所述连接器将设置在所述第二光纤周围的所述第三光纤朝向所述第一光纤延伸,所述连接器包括连接在所述第一芯和所述第二芯之间的第三芯, 围绕第三核心的第五包层。

    Demodulation method using soft decision for quadrature amplitude modulation and apparatus thereof
    4.
    发明授权
    Demodulation method using soft decision for quadrature amplitude modulation and apparatus thereof 有权
    使用软判决进行正交幅度调制的解调方法及其装置

    公开(公告)号:US07580480B2

    公开(公告)日:2009-08-25

    申请号:US10536756

    申请日:2004-01-10

    CPC classification number: H04L25/067 H04L27/38

    Abstract: In a soft decision method for demodulation of a received square QAM (Quadrature Amplitude Modulation) signal, the processing speed is improved, and the manufacturing expense is reduced, by using condition probability vector values, which are soft decision values. A condition judgment operation is employed.

    Abstract translation: 在用于解调接收的正方形QAM(正交幅度调制)信号的软判决方法中,通过使用作为软判决值的条件概率向量值,提高了处理速度并降低了制造费用。 采用条件判断操作。

    GAIN-CLAMPED OPTICAL AMPLIFYING APPARATUS USING FIBER RAMAN AMPLIFIER HAVING RAMAN CAVITY
    5.
    发明申请
    GAIN-CLAMPED OPTICAL AMPLIFYING APPARATUS USING FIBER RAMAN AMPLIFIER HAVING RAMAN CAVITY 失效
    使用具有拉曼卡的纤维拉曼放大器的增益锁定光学放大装置

    公开(公告)号:US20090046353A1

    公开(公告)日:2009-02-19

    申请号:US12133008

    申请日:2008-06-04

    Abstract: Provided is a gain-clamped (GC) optical amplifier using a fiber Raman amplifier (FRA) having a Raman cavity. The FRA having a Raman cavity comprises a Raman fiber module (RFM) amplifying and outputting an input optical signal and a resonant cavity generating a Raman laser and a gain clamping laser (GC laser), wherein the resonant cavity is formed as a feedback loop between an input terminal and an output terminal of the RFM. Accordingly, a gain of an optical signal propagating along a core of RFM keeps a constant value regardless of input signal intensity by generating the GC laser for gain clamping between a wavelength band of the Raman laser and a gain band of input signals.

    Abstract translation: 提供了使用具有拉曼腔的光纤拉曼放大器(FRA)的增益钳位(GC)光放大器。 具有拉曼腔的FRA包括放大并输出输入光信号的拉曼光纤模块(RFM)和产生拉曼激光器的谐振腔和增益钳位激光器(GC激光器),其中谐振腔形成为在 RFM的输入端子和输出端子。 因此,通过生成用于拉曼激光器的波长带和输入信号的增益带之间的增益钳位的GC激光器,沿着RFM的核心传播的光信号的增益保持恒定值,而与输入信号强度无关。

    Gain-clamped optical amplifier using double-clad fiber
    6.
    发明申请
    Gain-clamped optical amplifier using double-clad fiber 审中-公开
    增益钳位光放大器采用双包层光纤

    公开(公告)号:US20080267227A1

    公开(公告)日:2008-10-30

    申请号:US11982166

    申请日:2007-10-31

    CPC classification number: H01S3/06754 H01S3/06729 H01S3/1302

    Abstract: Provided is a gain-clamped optical amplifier amplifying light without bandwidth loss of an incident optical signal, and the gain-clamped optical amplifier using a double-clad fiber comprises: an optical fiber including a core doped with a gain material for amplifying an optical signal, a primary clad adjacent to the outside of the core and having a lower refractive index than the core, and a secondary clad adjacent to the outside of the primary clad and having a lower refractive index than the primary clad; a light emitting element emitting a pump light for population inversion of the gain material; and a cavity unit producing laser oscillation by resonating spontaneous emission light emitted from the gain material population-inverted by the pump light.

    Abstract translation: 本发明提供一种增益钳位光放大器,其放大入射光信号的带宽损耗的光,并且使用双包层光纤的增益钳位光放大器包括:包含掺杂有用于放大光信号的增益材料的核的光纤 邻近核心的外部的初级包层并且具有比芯部更低的折射率,以及邻近初级包层的外侧且具有比初级包层低的折射率的次级包层; 发射用于增益材料的群体反转的泵浦光的发光元件; 以及腔体单元,通过使从由泵浦光反转的增益材料发射的自发发射光共振来产生激光振荡。

    APPARATUS FOR MANUFACTURING OPTICAL FIBER BRAGG GRATING, OPTICAL FIBER, AND MID-INFRARED OPTICAL FIBER LASER
    7.
    发明申请
    APPARATUS FOR MANUFACTURING OPTICAL FIBER BRAGG GRATING, OPTICAL FIBER, AND MID-INFRARED OPTICAL FIBER LASER 失效
    制造光纤光栅光栅,光纤和中红外光纤激光器的设备

    公开(公告)号:US20080156779A1

    公开(公告)日:2008-07-03

    申请号:US11942986

    申请日:2007-11-20

    Abstract: Provided is an apparatus for manufacturing an optical fiber Bragg grating. The optical fiber Bragg grating manufacturing apparatus includes: an optical fiber; a laser for irradiating a laser beam to the optical fiber to change a refractive index of a core of the optical fiber; an optical system for periodically changing the intensity of the laser beam irradiated to the optical fiber core; a broadband light source for providing broadband light as an incident signal to the optical fiber in order to observe a reflection characteristic of a Bragg grating formed in the optical fiber by the laser beam converted by the optical system; and an optical spectrum analyzer (OSA) for measuring a reflected signal or a transmitted signal of the broadband light incident to the Bragg grating, wherein the optical system realizes a Bragg wavelength (λB) in order to periodically change the refractive index of the optical fiber core, and the broadband light source and the optical spectrum analyzer use λB/N, where λB denotes the Bragg wavelength and N is a natural number which is equal to or more than 2.

    Abstract translation: 提供一种用于制造光纤布拉格光栅的装置。 光纤布拉格光栅制造装置包括:光纤; 用于将光束照射到光纤以改变光纤的芯的折射率的激光器; 用于周期性地改变照射到光纤芯的激光束的强度的光学系统; 宽带光源,用于向光纤提供宽带光作为入射信号,以通过由光学系统转换的激光束观察在光纤中形成的布拉格光栅的反射特性; 以及用于测量入射到布拉格光栅的宽带光的反射信号或发射信号的光谱分析仪(OSA),其中所述光学系统实现布拉格波长(λBB)以周期性地 改变光纤纤芯的折射率,宽带光源和光谱分析仪使用λ/ B / N,其中λB B表示布拉格波长,N是 等于或大于2的自然数。

    Modulation method using hard decision for quadrature amplitude modualtion and an apparatus thereof
    8.
    发明申请
    Modulation method using hard decision for quadrature amplitude modualtion and an apparatus thereof 审中-公开
    使用硬判决进行正交幅度调制的调制方法及其装置

    公开(公告)号:US20060062330A1

    公开(公告)日:2006-03-23

    申请号:US10536755

    申请日:2003-06-25

    CPC classification number: H04L25/061 H04L27/38 H04L27/389

    Abstract: The invention relates to a hard decision demodulation of a square type of a quadrature amplitude modulation signal, in particular, to a hard decision demodulation method and apparatus capable of performing fast and accurate demodulation, by demodulating a received signal in bit unit when demodulating it. In a hard decision demodulation method of a square type of quadrature amplitude modulation signal, by determining in bit unit, not in symbol unit a corresponding output value from a quadrature phase component value and an in-phase component value, it is possible to develop a more useful demodulation technique and to give a secondary function by independently processing each bit, according to the demodulation of bit unit. Further, the invention can be constituted of merely a comparison circuit without having arithmetic in demodulation process, and therefore, can enhance flexibility of actual configuration and processing speed.

    Abstract translation: 本发明涉及一种正方形正交幅度调制信号的硬判决解调,特别涉及一种能够通过解调接收到的以位为单位的接收信号进行解调的硬判决解调方法和装置,能够进行快速,准确的解调。 在正方形正交幅度调制信号的硬判决解调方法中,通过以比特为单位,以符号单位确定来自正交相位分量值和同相分量值的相应输出值,可以形成 更有用的解调技术,并根据比特单元的解调,通过独立处理每个比特来提供二次功能。 此外,本发明可以仅由比较电路构成,而不需要在解调过程中进行运算,因此可以提高实际配置和处理速度的灵活性。

    Demodulation method using soft decision for quadrature amplitude modulation and apparatus thereof
    9.
    发明申请
    Demodulation method using soft decision for quadrature amplitude modulation and apparatus thereof 有权
    使用软判决进行正交幅度调制的解调方法及其装置

    公开(公告)号:US20060034392A1

    公开(公告)日:2006-02-16

    申请号:US10536756

    申请日:2004-01-10

    CPC classification number: H04L25/067 H04L27/38

    Abstract: The present invention relates to a demodulation method using soft decision for QAM (Quadrature Amplitude Modulation). In a soft decision method for demodulation of a received signal of square QAM comprised of the same phase signal component and a orthogonal phase signal component, the demodulation method using soft decision has a characteristic wherein the processing speed is improved, and the manufacturing expense is reduced by gaining a condition probability vector value, which is each soft decision value, corresponding to a beat position of hard decision using a function which includes a condition judgement operation from a orthogonal phase component value of a received signal and the same phase component value.

    Abstract translation: 本发明涉及使用QAM(正交幅度调制)的软判决的解调方法。 在用于解调由相同相位信号分量和正交相位信号分量组成的平方QAM的接收信号的软判决方法中,使用软判决的解调方法具有提高处理速度并降低制造费用的特性 通过使用包括来自接收信号的正交相位分量值的条件判断操作和相同相位分量值的函数获得对应于硬判决的节拍位置的每个软判决值的条件概率向量值。

    Hermetic rotary compressor
    10.
    发明授权
    Hermetic rotary compressor 失效
    密封旋转压缩机

    公开(公告)号:US06241496B1

    公开(公告)日:2001-06-05

    申请号:US09526156

    申请日:2000-03-15

    CPC classification number: F04C29/068

    Abstract: The present invention relates to a hermetic rotary compressor. More particularly, since the conventional rotary compressor has problems that the effect of a surge recess for reducing noises due to pressure pulsation is insufficient, and it is impossible to obtain the maximum compression efficiency, the present invention is constructed such that noises due to pressure pulsation can be reduced to the maximum and at the same time the compressive driving force required for compressing gaseous refrigerant is decreased to thereby improve the compression efficiency. In a hermetic rotary compressor which comprises a crankshaft which has an eccentric portion formed therein and is rotated by receiving driving force of a motor unit, a rolling piston which is inserted into an eccentric portion of the crankshaft, a cylinder in which a space portion into which the rolling piston is inserted is formed to thereby form a space portion between the inner surface of the cylinder and the outer surface of the rolling piston, upper and lower bearings, each of which is connected to the cylinder to thereby enclosing the space portion and at the same time support the crankshaft, and a vane which is installed to penetrates the inner wall of the cylinder, linearly reciprocate in a radius direction of the cylinder, and linearly contact with the outer surface of the rolling piston, whereby the space portion of the cylinder is partitioned into a suction area and a compression area according to the rotation of the crankshaft, there is a provided a hermetic rotary compressor, wherein a surge recess is formed at 80˜90 degrees in a rotational direction of the crankshaft from the vane, have a volume corresponding to 0.5˜2% of the overall volume of the space portion, and is partially communicated with the cylinder space portion.

    Abstract translation: 本发明涉及一种密封旋转式压缩机。 更具体地说,由于传统的旋转压缩机具有用于减少由于压力脉动引起的噪声的浪涌凹部的效果不足的问题,并且不可能获得最大的压缩效率,所以本发明构造成使得由于压力脉动引起的噪音 可以减少到最大值,同时降低压缩气态制冷剂所需的压缩驱动力,从而提高压缩效率。 在一种密封旋转式压缩机中,该曲轴具有形成在其中的偏心部分并通过接受电机单元的驱动力而旋转的曲轴,插入到曲轴的偏心部分中的滚动活塞,其中空间部分 形成滚动活塞的方式形成为在缸体的内表面和滚动活塞的外表面之间形成空间部分,上下轴承各自与气缸连接,从而封闭空间部分, 同时支撑曲轴,并且安装成穿过气缸的内壁的叶片在圆筒的半径方向上线性地往复运动,并且与滚动活塞的外表面线性接触,由此, 气缸根据曲轴的旋转被分隔成吸入区域和压缩区域,提供了一种密封旋转压缩机 或者,其中在曲轴的旋转方向上从叶片以80〜90度形成缓冲凹槽,其体积对应于空间部分的总体积的0.5〜2%,并且与气缸空间部分连通 一部分。

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