Plural frequency oscillator employing multiple fiber-optic delay line
    71.
    发明授权
    Plural frequency oscillator employing multiple fiber-optic delay line 失效
    采用多光纤延迟线的多频振荡器

    公开(公告)号:US4297656A

    公开(公告)日:1981-10-27

    申请号:US23394

    申请日:1979-03-23

    Applicant: Jing-Jong Pan

    Inventor: Jing-Jong Pan

    CPC classification number: G04F5/00 H03B17/00 H04B10/2504

    Abstract: Stabilization of an oscillator, particularly an RF oscillator, is achieved by an arrangement employing a fiber optic delay line. The delay line has a Q defined by the relationship Q=2.pi.f.tau., where f is the oscillator operation frequency and .tau. is the length of the delay line. Opto/electronic and electro optic transducers are coupled between the electrical oscillator circuitry and the optical delay line for interfacing the electrical section of the RF oscillator with its optical section. This optic delay line may be configured as a single optical fiber where a single output frequency is desired, or it may be configured of a plurality of optical fibers of respectively different lengths, where plural output frequencies are to be produced.

    Abstract translation: 通过采用光纤延迟线的布置来实现振荡器,特别是RF振荡器的稳定化。 延迟线具有由关系Q =2πfτ定义的Q,其中f是振荡器操作频率,τ是延迟线的长度。 光电/电光传感器耦合在电振荡器电路和光学延迟线之间,用于将RF振荡器的电部分与其光学部分进行接口。 该光学延迟线可以被配置为需要单个输出频率的单个光纤,或者可以由分别具有多个输出频率的多个不同长度的光纤配置。

    Fiber optic repeater
    72.
    发明授权
    Fiber optic repeater 失效
    光纤中继器

    公开(公告)号:US4295225A

    公开(公告)日:1981-10-13

    申请号:US934885

    申请日:1978-08-18

    Applicant: Jing-Jong Pan

    Inventor: Jing-Jong Pan

    CPC classification number: H04B10/29

    Abstract: A fiber optic repeater includes a photodetector stage, an amplification and pulse sharpening stage and a driven stage for an injection laser diode, the three stages being made up of only three MESFETs, preferably of the GaAs type and each stage being similar to the other stages in configuration so as to lend itself to MSI or LSI fabrication of a very simplified and reliable microwave frequency optical repeater.

    Abstract translation: 光纤中继器包括光电检测器级,放大和脉冲锐化级以及用于注入激光二极管的驱动级,三级仅由三种MESFET组成,优选为GaAs型,每级与其它级相似 以配合MSI或LSI制造非常简单可靠的微波频率光中继器。

    Single optical fiber directional coupler
    73.
    发明授权
    Single optical fiber directional coupler 失效
    单光纤定向耦合器

    公开(公告)号:US4240694A

    公开(公告)日:1980-12-23

    申请号:US839815

    申请日:1977-10-06

    Applicant: Jing-Jong Pan

    Inventor: Jing-Jong Pan

    CPC classification number: G02B6/2808

    Abstract: A coupler for transferring signals from a first group of single optical fibers to a second group of single optical fibers. The coupler provided for this purpose is a directional star coupler which is constructed so as to eliminate any need for the employment of a mixing chamber. A covering, or cladding, generally covers each optical fiber in order to prevent light from being emitted through the circumferential surface of such fiber. At an end portion of each of the fibers of both the first and second groups, the cladding is treated so as to allow light to be emitted from the circumferential surface of such portion. The end portions of the fibers of the first group are fed through an opening at one side of a coupling chamber. The end portions of the fibers of the second group are fed through another opening within the coupling chamber. The first and second groups of fibers are arranged within the chamber so that their end faces are in abutment with each other. In this manner, signals transmitted along any of the fibers of the first group are transferred to all of the fibers of the second group.

    Abstract translation: 用于将信号从第一组单光纤传输到第二组单光纤的耦合器。 为此目的的耦合器是定向星形耦合器,其被构造成不需要使用混合室。 覆盖物或覆层通常覆盖每个光纤以防止光通过这种光纤的圆周表面发射。 在第一组和第二组的每个纤维的端部处,处理包层以允许光从该部分的圆周表面发射。 第一组的纤维的端部通过联接室一侧的开口进给。 第二组的纤维的端部通过联接室内的另一开口进给。 第一和第二组纤维布置在腔室内,使得它们的端面彼此邻接。 以这种方式,沿着第一组的任何纤维传输的信号被传送到第二组的所有纤维。

    Cavity excitation utilizing microstrip, strip, or slot line
    74.
    发明授权
    Cavity excitation utilizing microstrip, strip, or slot line 失效
    利用微带,条或缝线的腔激发

    公开(公告)号:US4211987A

    公开(公告)日:1980-07-08

    申请号:US856037

    申请日:1977-11-30

    Applicant: Jing-Jong Pan

    Inventor: Jing-Jong Pan

    CPC classification number: H01P5/107 H01P7/06

    Abstract: The excitation or coupling of microwave integrated circuits to a cavity or resonator is effected by a substrate forming part of the wall of the cavity and on which there is disposed a microstrip or a strip or a slot line.

    Abstract translation: 微波集成电路对空腔或谐振器的激励或耦合由形成空腔壁的一部分的基板实现,并且其上设置有微带或条或槽线。

    MINIATURE CIRCULATOR DEVICES AND METHODS FOR MAKING THE SAME
    75.
    发明申请
    MINIATURE CIRCULATOR DEVICES AND METHODS FOR MAKING THE SAME 有权
    微型循环器件及其制造方法

    公开(公告)号:US20060198022A1

    公开(公告)日:2006-09-07

    申请号:US11164992

    申请日:2005-12-13

    CPC classification number: G02B6/272 G02B6/2746 G02B6/2766 G02F1/093

    Abstract: Miniature optical devices, including circulator array devices, are fabricated using thin film coating technology. A typical optical device includes two refraction elements arranged opposite each other along a propagation axis and coupled on opposite ends to first and second polarization orientation elements with first and second PBS elements are coupled to the first and second polarization orientation elements, respectively. The refraction elements include complementary Wollaston Prism elements or Rochon Prism elements. Each polarization orientation element includes a Faraday rotator element, and in some embodiments, a half-wave plate formed using thin film coating techniques. The Faraday rotator elements are periodically poled in some embodiments using selective poling techniques to create oppositely oriented magnetic domains so that polarization rotations of 45 degrees in both clockwise and counter-clockwise directions can be simultaneously achieved on the same magnetic garnet. Periodically etched half-wave plates are used in some embodiments.

    Abstract translation: 微型光学器件,包括循环器阵列器件,使用薄膜涂覆技术制造。 典型的光学器件包括沿着传播轴线彼此相对布置的两个折射元件,并且在相对端上耦合到第一和第二偏振取向元件,其中第一和第二PBS元件分别耦合到第一和第二偏振取向元件。 折射元件包括互补的Wollaston棱镜元件或Rochon棱镜元件。 每个偏振取向元件包括法拉第转子元件,并且在一些实施例中,使用薄膜涂覆技术形成半波片。 在一些实施例中,法拉第转子元件周期性地被极化,使用选择性极化技术来产生相反方向的磁畴,使得可以在相同的磁性石榴石上同时实现顺时针和逆时针方向上的45度的偏振旋转。 在一些实施例中使用周期蚀刻的半波片。

    Miniature WDM add/drop multiplexer and method of manufacture thereof
    77.
    发明申请
    Miniature WDM add/drop multiplexer and method of manufacture thereof 有权
    微型WDM分插复用器及其制造方法

    公开(公告)号:US20050141815A1

    公开(公告)日:2005-06-30

    申请号:US10812497

    申请日:2004-03-30

    CPC classification number: G02B6/29367 G02B6/2938 H04J14/0201

    Abstract: A miniature WDM add/drop multiplexer and its manufacture is described. The device has a plurality of wavelength-dependent filters in the form of thin-film filters mounted to a core frame with the end sections of the input/output optical fiber and other optical fibers associated with each of the filters. The stresses associated with the filters are accounted for. The core frame is sealed, together with the overall package assembly, to provide for long-term reliability of the device. The described device and method of manufacture is also generally applicable to WDM multiplexers and demultiplexers.

    Abstract translation: 描述了微型WDM分插复用器及其制造。 该装置具有安装在芯框架上的薄膜滤光片形式的多个依赖于波长的滤光器,输入/输出光纤的端部部分和与每个滤光器相关联的其它光纤。 与滤波器相关的应力被解释。 芯框架与整个包装组件一起密封,以提供设备的长期可靠性。 所描述的器件和制造方法也通常适用于WDM多路复用器和解复用器。

    Integrated variable optical attenuator and related components
    78.
    发明申请
    Integrated variable optical attenuator and related components 审中-公开
    集成可变光衰减器及相关元件

    公开(公告)号:US20050111073A1

    公开(公告)日:2005-05-26

    申请号:US10718030

    申请日:2003-11-20

    Abstract: A polarization element and a polarization-sensitive optical isolator are integrated to form an integrated VOA. A preferred embodiment uses a liquid crystal cell as the polarization element to which is attached an optical isolator core of a first polarizer, Faraday rotator, and second polarizer. Voltage on the liquid crystal cell electrodes controls the amount of polarized light from the liquid crystal cell passing through the first polarizer and light in the opposite direction is blocked. The integrated VOA can be mounted within a laser device package so that the power of the source laser diode on the output fiber can be controlled and yet the laser diode is protected from light undesirably entering laser device package through the output fiber.

    Abstract translation: 集成了偏振元件和偏振敏感光隔离器,以形成集成的VOA。 优选实施例使用液晶单元作为安装有第一偏振器,法拉第旋转器和第二偏振器的光隔离器芯的偏振元件。 液晶单元电极上的电压控制来自通过第一偏振器的液晶单元的偏振光的量,并且阻止相反方向的光。 集成的VOA可以安装在激光器件封装中,使得可以控制输出光纤上的源极激光二极管的功率,并且保护激光二极管免受不期望地通过输出光纤进入激光器件封装的光。

    Temperature compensation for liquid crystal cell optical devices
    79.
    发明授权
    Temperature compensation for liquid crystal cell optical devices 有权
    液晶单元光学元件的温度补偿

    公开(公告)号:US06801183B2

    公开(公告)日:2004-10-05

    申请号:US10119538

    申请日:2002-04-10

    CPC classification number: G02F1/13306 G02B6/266 G02F2203/48 G02F2203/60

    Abstract: A temperature compensation circuit arrangement for liquid crystal cells in optical devices is presented. In an optical device, a liquid crystal cell typically manipulates the optical signals according to an output optical property, such as attenuation, responsive to an AC voltage source electrical signal. A feedback circuit arrangement is connected to the liquid crystal cell and controls the current through the liquid crystal cell with respect to temperature by a predetermined control equations for the output optical property so that the device manipulates the optical signals independently of temperature. The current follows the control equations, which are empirically determined with respect to temperature for one equation.

    Abstract translation: 提出了一种用于光学器件中的液晶单元的温度补偿电路装置。 在光学装置中,液晶单元通常响应于AC电压源电信号而根据诸如衰减的输出光学特性来操纵光信号。 反馈电路装置连接到液晶单元并且通过预定的控制方程来控制液晶单元相对于温度的电流,以便输出光学特性,使得该装置独立于温度来操纵光信号。 电流遵循控制方程式,它们根据一个方程的温度经验确定。

    Tunable fiber optic filter
    80.
    发明授权
    Tunable fiber optic filter 有权
    可调谐光纤滤波器

    公开(公告)号:US06459844B1

    公开(公告)日:2002-10-01

    申请号:US09351641

    申请日:1999-07-13

    Applicant: Jing-Jong Pan

    Inventor: Jing-Jong Pan

    CPC classification number: G02B6/29361 G02B6/29395 G02B6/32 H01S5/141

    Abstract: The invention provides improved optical devices, systems, and methods for controllably varying an optical characteristic of an optical signal, particularly for filtering and generating optical signals about a narrow tunable central wavelength. Thin film multi-cavity Fabry-Perot bandpass filters have film thicknesses which vary so as to vary the center wavelength of the filter's pass range. Novel micro lenses and lens arrangements avoid transmission of optical signals through a large area of the optical filter, which would widen the effective pass bandwidth and reduce coupling efficiency. These bandpass filtering techniques can be used in an external cavity laser system to provide a tunable laser source.

    Abstract translation: 本发明提供了用于可控地改变光信号的光学特性的改进的光学器件,系统和方法,特别是用于滤波和产生关于窄可调谐中心波长的光信号。 薄膜多腔法布里 - 珀罗带通滤光器具有改变滤光器通过范围的中心波长的膜厚度。 新的微透镜和透镜结构避免了光信号通过大面积的滤光器传播,这将扩大有效通带宽度并降低耦合效率。 这些带通滤波技术可用于外腔激光系统中以提供可调激光源。

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