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1. 发明授权

US5784185A Optical network 失效
标题翻译：光网络
公开(公告)号：US5784185A
公开(公告)日：1998-07-21
申请号：US699657
申请日：1996-08-19
申请人： Kevin Smith , Julian K. Lucek , Danny R. Pitcher , Terence Widdowson , David G. Moodie
发明人： Kevin Smith , Julian K. Lucek , Danny R. Pitcher , Terence Widdowson , David G. Moodie
IPC分类号： G02F1/015 , H04B10/50 , H04B10/508 , H04J20060101 , H04J3/00 , H04J3/02 , H04J3/04 , H04J14/08 , H04L7/00 , H04L7/033
CPC分类号： H04B10/505 , H04B10/508 , H04J14/08 , H04L7/0037 , H04L7/0075 , H04J14/083 , H04L7/0337
摘要： A receiver at a node in an optical network receives an optical clock signal and an OTDM datastream. A detector converts the clock signal to the electrical domain. A variable delay stage applies a selected delay to the clock signal in the electrical domain. A non-linear electro-optic modulator which may be an electro-absorption modulator, receives the OTDM datastream at its optical input. An electrical control input of the modulator is connected to the output of the variable delay stage. The electro-optic modulator outputs an OTDM channel selected by setting the delay of the variable delay stage. The variable delay stage may include a number of logic gates, particularly AND gates, connected between a pair of microstrip delay lines. The gates are controlled to provide different paths with different corresponding delay times for the clock signal.
摘要翻译：光网络中的节点处的接收机接收光时钟信号和OTDM数据流。检测器将时钟信号转换为电域。可变延迟级将选择的延迟施加到电域中的时钟信号。可以是电吸收调制器的非线性电光调制器在其光输入处接收OTDM数据流。调制器的电气控制输入连接到可变延迟级的输出端。电光调制器通过设置可变延迟级的延迟来输出选择的OTDM信道。可变延迟级可以包括连接在一对微带延迟线之间的多个逻辑门，特别是与门。门被控制以为时钟信号提供具有不同相应延迟时间的不同路径。

2. 发明申请

US20100142962A1 MULTIWAVELENGTH TRANSMITTER 有权
标题翻译：多波长发射机
公开(公告)号：US20100142962A1
公开(公告)日：2010-06-10
申请号：US12515318
申请日：2007-11-16
申请人： Alistair J. Poustie , Graeme D. Maxwell , Richard Wyatt , David W. Smith , David G. Moodie , Ian F. Lealman
发明人： Alistair J. Poustie , Graeme D. Maxwell , Richard Wyatt , David W. Smith , David G. Moodie , Ian F. Lealman
IPC分类号： H04J14/02
CPC分类号： H04B10/506 , G02B6/12021 , G02B6/12023 , G02B6/12026 , G02B6/12028 , H01S5/0085 , H01S5/0268 , H04J14/02
摘要： A multiwavelength transmitter comprises several laser sources (1) each configured to generate light of a different wavelength and a first array waveguide grating (2) arranged to direct light from each of the laser sources (1) into a first waveguide. The transmitter further comprises several electroabsorption modulators (7) each arranged to modulate light at one of the wavelengths with a respective data signal and a second array waveguide grating (6) arranged to direct each of said different wavelengths of light from the first waveguide to a respective one of the modulators (7). The optical modulators (7) are reflective optical modulators and the second array waveguide grating (6) is arranged to direct the modulated light reflected from each of the optical modulators (7) back into the first waveguide. An optical circulator (5) is provided in the first waveguide to couple modulated light from the second array waveguide grating (6) into an output waveguide. The laser sources each comprise a respective reflective semiconductor optical amplifier (1) and share a common cavity reflector (3). The first array waveguide grating (2) is located in the optical path between the semiconductor optical amplifiers (1) and the common cavity reflector (3). The transmitter has the advantage that it can be manufactured by hybrid integration of a monolithic wavelength generation sub-module and a monolithic data modulation sub-module.
摘要翻译：多波长发射器包括被配置为产生不同波长的光的多个激光源（1）和布置成将来自每个激光源（1）的光引导到第一波导中的第一阵列波导光栅（2）。发射机还包括几个电吸收调制器（7），每个电吸收调制器（7）被布置成用相应数据信号调制波长中的一个的光，并且第二阵列波导光栅（6）布置成将来自第一波导的所述不同波长的光的每一个引导到相应的一个调制器（7）。光调制器（7）是反射光学调制器，第二阵列波导光栅（6）被布置成将从每个光学调制器（7）反射的调制光引导回第一波导。在第一波导中设置光环行器（5），以将来自第二阵列波导光栅（6）的调制光耦合到输出波导中。激光源各自包括相应的反射半导体光放大器（1）并且共享公共腔反射器（3）。第一阵列波导光栅（2）位于半导体光放大器（1）和公共空腔反射器（3）之间的光路中。发射机的优点是可以通过单片波长生成子模块和单片数据调制子模块的混合集成来制造。

3. 发明授权

US08326154B2 Multiwavelength transmitter 有权
标题翻译：多波长发射机
公开(公告)号：US08326154B2
公开(公告)日：2012-12-04
申请号：US12515318
申请日：2007-11-16
申请人： Alistair J. Poustie , Graeme D. Maxwell , Richard Wyatt , David W. Smith , David G. Moodie , Ian F. Lealman
发明人： Alistair J. Poustie , Graeme D. Maxwell , Richard Wyatt , David W. Smith , David G. Moodie , Ian F. Lealman
IPC分类号： H04J14/02
CPC分类号： H04B10/506 , G02B6/12021 , G02B6/12023 , G02B6/12026 , G02B6/12028 , H01S5/0085 , H01S5/0268 , H04J14/02
摘要： A multiwavelength transmitter comprises several laser sources (1) each configured to generate light of a different wavelength and a first array waveguide grating (2) arranged to direct light from each of the laser sources (1) into a first waveguide. The transmitter further comprises several electroabsorption modulators (7) each arranged to modulate light at one of the wavelengths with a respective data signal and a second array waveguide grating (6) arranged to direct each of said different wavelengths of light from the first waveguide to a respective one of the modulators (7). The optical modulators (7) are reflective optical modulators and the second array waveguide grating (6) is arranged to direct the modulated light reflected from each of the optical modulators (7) back into the first waveguide. An optical circulator (5) is provided in the first waveguide to couple modulated light from the second array waveguide grating (6) into an output waveguide. The laser sources each comprise a respective reflective semiconductor optical amplifier (1) and share a common cavity reflector (3). The first array waveguide grating (2) is located in the optical path between the semiconductor optical amplifiers (1) and the common cavity reflector (3). The transmitter has the advantage that it can be manufactured by hybrid integration of a monolithic wavelength generation sub-module and a monolithic data modulation sub-module.
摘要翻译：多波长发射器包括被配置为产生不同波长的光的多个激光源（1）和布置成将来自每个激光源（1）的光引导到第一波导中的第一阵列波导光栅（2）。发射机还包括几个电吸收调制器（7），每个电吸收调制器（7）被布置成用相应数据信号调制波长中的一个的光，并且第二阵列波导光栅（6）布置成将来自第一波导的所述不同波长的光的每一个引导到相应的一个调制器（7）。光调制器（7）是反射光学调制器，第二阵列波导光栅（6）被布置成将从每个光学调制器（7）反射的调制光引导回第一波导。在第一波导中设置光环行器（5），以将来自第二阵列波导光栅（6）的调制光耦合到输出波导中。激光源各自包括相应的反射半导体光放大器（1）并且共享公共腔反射器（3）。第一阵列波导光栅（2）位于半导体光放大器（1）和公共空腔反射器（3）之间的光路中。发射机的优点是可以通过单片波长生成子模块和单片数据调制子模块的混合集成来制造。

4. 发明授权

US5550939A High speed optical switching device including a capacitance structure 失效
标题翻译：包括电容结构的高速光开关器件
公开(公告)号：US5550939A
公开(公告)日：1996-08-27
申请号：US318620
申请日：1994-10-07
申请人： Paul M. Rodgers , David G. Moodie , David Wake
发明人： Paul M. Rodgers , David G. Moodie , David Wake
IPC分类号： G02F1/015 , G02F1/01 , G02F1/025 , G02F1/35 , G02F1/365 , G02B6/10
CPC分类号： G02F1/025 , G02F1/3515 , G02F1/0126 , G02F2001/0152
摘要： A high speed optical switching device includes a waveguide arrangement, incorporating a pn junction, with a large bondpad for the purposes of increasing the capacitance presented by the device. Data and control signals can be input at an input port of the waveguide arrangement, presence of the control signal operating to modify the optical path length of the device for the data signal. By incorporating the device in an interferometer arrangement, or by exploiting a Fabry-Perot cavity of the device, it can be used to transmit the data signal selectively, for instance so as to demultiplex a time multiplexed optical communications signal. The high capacitance provides a very short recovery times so that data rates of 10 GHz and substantially above can be accommodated.
摘要翻译： PCT No.PCT / GB93 / 00762 Sec。 371日期：1994年10月7日 102（e）日期1994年10月7日PCT提交1993年4月13日PCT公布。公开号WO93 / 21554 日期：1993年10月28日高速光开关器件包括具有pn结的波导配置，具有大的接合垫，用于增加器件所呈现的电容。数据和控制信号可以在波导装置的输入端口处输入，控制信号的存在操作以修改数据信号的装置的光程长度。通过将器件结合在干涉仪装置中，或通过利用器件的法布里 - 珀罗腔，可以选择性地传输数据信号，例如以对多路复用的光通信信号进行解复用。高电容提供非常短的恢复时间，使得可以容纳10GHz和大大高于数据速率。

5. 发明授权

US5917636A Generation of radio frequency modulated optical radiation 失效
标题翻译：产生射频调制光辐射
公开(公告)号：US5917636A
公开(公告)日：1999-06-29
申请号：US716187
申请日：1996-09-30
申请人： David Wake , David G. Moodie , Derek Nesset
发明人： David Wake , David G. Moodie , Derek Nesset
IPC分类号： G02F1/015 , H04B10/2575 , H04B10/04
CPC分类号： H04B10/25752
摘要： Radio frequency modulated optical radiation is generated for use in a radio over fibre communications system. A semiconductor electroabsorption modulator efficiently modulates an input optical signal at harmonics of the electrical modulation frequency applied to the electroabsorption modulator. A low frequency design, and thus low cost, electroabsorption modulator is utilized to generate higher order harmonics of an electrical drive signal for use in a radie over fibre communications systems.
摘要翻译： PCT No.PCT / GB95 / 00589 Sec。 371日期1996年9月30日 102（e）1996年9月30日PCT PCT 1995年3月17日PCT公布。公开号WO95 / 27346 日期1995年10月12日生成用于无线电通过光纤通信系统的辐射频调制光辐射。半导体电吸收调制器在施加到电吸收调制器的电调制频率的谐波处有效地调制输入光信号。利用低频设计以及因此低成本的电吸收调制器来产生用于光纤通信系统中的电弧驱动信号的较高阶谐波。

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