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1. 发明申请

US20050018732A1 Uncooled and high temperature long reach transmitters, and high power short reach transmitters 审中-公开
标题翻译：未冷却和高温长距离变送器，以及大功率短距离变送器
公开(公告)号：US20050018732A1
公开(公告)日：2005-01-27
申请号：US10741494
申请日：2003-12-19
申请人： Aaron Bond , Newton Frateschi , Jiaming Zhang
发明人： Aaron Bond , Newton Frateschi , Jiaming Zhang
IPC分类号： H01L31/075 , H01S5/00 , H01S5/026 , H01S5/12 , H01S5/40
CPC分类号： H01S5/4006 , H01S5/005 , H01S5/0064 , H01S5/0085 , H01S5/0265 , H01S5/12
摘要： A method for improving the reliability of an uncooled long reach optical transmitter operating substantially at a predetermined output power. The uncooled long reach optical transmitter in this method includes a laser, an SOA and a modulator. The laser is operated to produce a reduced power laser beam, thereby improving the laser reliability. The SOA bias current is controlled so that the SOA amplifies the reduced power laser beam to substantially maintain the predetermined output power. The SOA is sufficiently long to provide this amplification, while maintaining a reduced current density within the SOA, thereby improving the SOA reliability. Small signal chirp parameters are measured for two bias voltages of the modulator. A linear function of the modulator bias voltage versus temperature is determined. The modulator bias voltage as a function of temperature is adjusted to maintain a constant dispersion penalty for data transmission.
摘要翻译：一种用于提高基本上以预定输出功率工作的非冷却长距离光发射机的可靠性的方法。该方法中的未冷却长距离光发射机包括激光器，SOA和调制器。操作激光器以产生功率较小的激光束，从而提高激光器的可靠性。 SOA偏置电流被控制，使得SOA放大降低功率的激光束以基本保持预定的输出功率。 SOA足够长以提供这种放大，同时在SOA内保持降低的电流密度，从而提高SOA的可靠性。对调制器的两个偏置电压测量小信号啁啾参数。确定调制器偏置电压对温度的线性函数。调整偏置电压作为温度的函数，以保持数据传输恒定的色散损失。

2. 发明授权

US06856441B2 Method of tuning wavelength tunable electro-absorption modulators 有权
标题翻译：调谐波长可调电吸收调制器的方法
公开(公告)号：US06856441B2
公开(公告)日：2005-02-15
申请号：US10647485
申请日：2003-08-25
申请人： Liyan Zhang , Newton C. Frateschi , Jiaming Zhang , Aaron Bond
发明人： Liyan Zhang , Newton C. Frateschi , Jiaming Zhang , Aaron Bond
IPC分类号： G02F1/01 , G02F1/015 , G02F1/03
CPC分类号： G02F1/0123 , G02F2001/0157
摘要： A method of tuning an electroabsorption modulator (EAM). A reference average power loss factor for light having a reference peak wavelength that is modulated by the EAM is provided. This loss factor is based on operation of the EAM using a reference bias voltage, a reference temperature, and a reference modulation signal which has a predetermined duty cycle. Input light is coupled into the EAM and modulated using a modulation signal which has the same duty cycle as the reference modulation signal. The input power of the input light and the average output power of light emitted from the EAM are measured. These input and average output powers are used to generate an average power loss factor. The average power loss factor is compared to the reference average power loss factor and the bias voltage and/or the temperature of the EAM are adjusted to reduce differences between these loss factors.
摘要翻译：一种调谐电吸收调制器（EAM）的方法。提供具有由EAM调制的参考峰值波长的光的参考平均功率损耗因子。该损耗因子基于使用具有预定占空比的参考偏置电压，参考温度和参考调制信号的EAM的操作。输入光耦合到EAM中并使用与参考调制信号具有相同占空比的调制信号进行调制。测量输入光的输入功率和从EAM发射的光的平均输出功率。这些输入和平均输出功率用于产生平均功率损耗因子。将平均功率损耗因子与参考平均功率损耗因子进行比较，并且调整EAM的偏置电压和/或温度以减小这些损耗因子之间的差异。

3. 发明授权

US06804421B2 Monolithic expanded beam mode electroabsorption modulator 有权
标题翻译：单片扩展束模式电吸收调制器
公开(公告)号：US06804421B2
公开(公告)日：2004-10-12
申请号：US10056929
申请日：2002-01-25
申请人： Aaron Bond , Ram Jambunathan , Won Jin Choi
发明人： Aaron Bond , Ram Jambunathan , Won Jin Choi
IPC分类号： G02F1035
CPC分类号： B82Y20/00 , G02F1/01708
摘要： A monolithic single pass expanded beam mode active optical device includes: a substrate; a waveguide layer coupled to the top surface of the substrate; a semiconductor layer coupled to the waveguide layer; first and second electrodes for receiving an electric signal coupled to the substrate and the semiconductor layer, respectively. The waveguide layer includes a plurality of sublayers, forming a quantum well structure, which is responsive to the electric signal. The waveguide layer has three sections, two expansion/contraction sections and an active section, which extends between and adjacent to the two expansion/contraction sections. The thickness of at least one of the plurality of sublayers varies within the expansion/contraction portions of the quantum well structure. Possible interactions of the active region with the light include: absorption in the case of an electro-absorptive modulator and optical gain.
摘要翻译：单片单通扩展光束模式有源光学器件包括：衬底; 耦合到所述衬底的顶表面的波导层; 耦合到所述波导层的半导体层; 分别用于接收耦合到所述衬底和所述半导体层的电信号的第一和第二电极。波导层包括多个子层，形成响应于电信号的量子阱结构。波导层具有三个部分，两个膨胀/收缩部分和一个有效部分，其在两个膨胀/收缩部分之间和相邻之间延伸。多个子层中的至少一个的厚度在量子阱结构的扩展/收缩部分内变化。有源区与光的相互作用包括：在电吸收调制器和光增益的情况下的吸收。

4. 发明授权

US06844212B2 Grating dispersion compensator and method of manufacture 有权
标题翻译：光栅色散补偿器及其制造方法
公开(公告)号：US06844212B2
公开(公告)日：2005-01-18
申请号：US10843743
申请日：2004-05-12
申请人： Aaron Bond , Ram Jambunathan , Newton C. Frateschi
发明人： Aaron Bond , Ram Jambunathan , Newton C. Frateschi
IPC分类号： G02B6/12 , G02B6/34 , H01L21/00
CPC分类号： G02B6/12007 , G02B6/29325 , G02B6/29394 , G02B6/29395 , G02B6/29398 , G02B2006/12107
摘要： A grating dispersion compensator (GDC), including: a substrate; a dielectric grating layer; a planar waveguide; and a passivation layer; is disclosed. The dielectric grating layer may be formed on the substrate and includes a variation in refractive index. This variation in refractive index defines a grating period. The grating period may vary along the longitudinal axis of the GDC according to a predetermined function. A selected center wavelength and dispersion curve may be created. The chirp of the grating period may be controlled by current, voltage, temperature, or pressure. The planar waveguide is formed on the dielectric grating layer and includes an input/output (I/O) surface normal to the longitudinal axis of the planar waveguide. The passivation layer is formed on the planar waveguide. Alternatively, a GDC may be formed with the dielectric grating layer on top of the planar waveguide rather than beneath it.
摘要翻译：光栅色散补偿器（GDC），包括：衬底; 电介质光栅层; 平面波导; 和钝化层; 被披露。电介质光栅层可以形成在衬底上并且包括折射率的变化。折射率的这种变化限定了光栅周期。光栅周期可以根据预定的功能沿GDC的纵向轴线变化。可以创建所选择的中心波长和色散曲线。光栅周期的啁啾可以由电流，电压，温度或压力来控制。平面波导形成在电介质光栅层上并且包括垂直于平面波导的纵向轴线的输入/输出（I / O）表面。钝化层形成在平面波导上。或者，可以在平面波导的顶部上而不是在其下方形成具有电介质光栅层的GDC。

5. 发明授权

US06661556B2 Stabilizing electro-absorption modulators (EAM's) performance by maintaining constant absorption with the use of integrated tap couplers 有权
标题翻译：通过使用集成分接耦合器保持恒定吸收，稳定电吸收调制器（EAM）的性能
公开(公告)号：US06661556B2
公开(公告)日：2003-12-09
申请号：US10218289
申请日：2002-08-14
申请人： Aaron Bond , John Kai Andersen , Ram Jambunathan
发明人： Aaron Bond , John Kai Andersen , Ram Jambunathan
IPC分类号： G02F103
CPC分类号： G02F1/025 , G02F1/0123 , G02F2203/05
摘要： An exemplary monolithic stabilized monolithic transmissive active optical device, such as an electroabsorption modulator (EAM), a variable optical attenuator (VOA), or a semiconductor optical amplifier (SOA), with an output optical tap, includes: a substrate; a waveguide layer; a semiconductor layer. The waveguide layer is coupled to the substrate and includes an active medium, which interacts with a predetermined wavelength of light, and is responsive to an electric signal. The electric signal is applied between the substrate and the semiconductor layer. The waveguide layer includes an output optical tap section and an active section adjacent to the output optical tap section. These sections include portions of the active medium. Further embodiments of the present invention incorporate temperature as well as bias control to improve performance of exemplary monolithic transmissive active optical devices. Additional embodiments include exemplary methods of manufacture and methods of operation.
摘要翻译：具有输出光学抽头的示例性的单片稳定单片透射有源光学器件，例如电吸收调制器（EAM），可变光衰减器（VOA）或半导体光放大器（SOA））包括：衬底; 波导层; 半导体层。波导层耦合到衬底并且包括与预定波长的光相互作用并且响应于电信号的有源介质。电信号施加在基板和半导体层之间。波导层包括输出光抽头部分和邻近输出光抽头部分的有源部分。这些部分包括活性介质的部分。本发明的另外的实施例包括温度和偏压控制以改善示例性单片透射有源光学器件的性能。另外的实施例包括示例性制造方法和操作方法。

6. 发明授权

US06987908B2 Grating dispersion compensator and method of manufacture 有权
标题翻译：光栅色散补偿器及其制造方法
公开(公告)号：US06987908B2
公开(公告)日：2006-01-17
申请号：US10167915
申请日：2002-06-11
申请人： Aaron Bond , Ram Jambunathan , Newton C. Frateschi
发明人： Aaron Bond , Ram Jambunathan , Newton C. Frateschi
IPC分类号： G02B6/34
CPC分类号： G02B6/12007 , G02B6/29325 , G02B6/29394 , G02B6/29395 , G02B6/29398 , G02B2006/12107
摘要： A grating dispersion compensator (GDC), including: a substrate; a dielectric grating layer; a planar waveguide; and a passivation layer. The dielectric grating layer may be formed on the substrate and includes a variation in refractive index. This variation in refractive index defines a grating period. The grating period may vary along the longitudinal axis of the GDC according to a predetermined function. A selected center wavelength and dispersion curve may be created. The chirp of the grating period may be controlled by current, voltage, temperature, or pressure. The planar waveguide is formed on the dielectric grating layer and includes an input/output (I/O) surface normal to the longitudinal axis of the planar waveguide. The passivation layer is formed on the planar waveguide. Alternatively, a GDC may be formed with the dielectric grating layer on top of the planar waveguide rather then beneath it.
摘要翻译：光栅色散补偿器（GDC），包括：衬底; 电介质光栅层; 平面波导; 和钝化层。电介质光栅层可以形成在衬底上并且包括折射率的变化。折射率的这种变化限定了光栅周期。光栅周期可以根据预定的功能沿GDC的纵向轴线变化。可以创建所选择的中心波长和色散曲线。光栅周期的啁啾可以由电流，电压，温度或压力来控制。平面波导形成在电介质光栅层上并且包括垂直于平面波导的纵向轴线的输入/输出（I / O）表面。钝化层形成在平面波导上。或者，可以在平面波导的顶部上而不是在其下方形成具有电介质光栅层的GDC。

7. 发明授权

US06862376B2 Method of fabricating a monolithic expanded beam mode electroabsorption modulator 失效
标题翻译：制造单片扩展束模式电吸收调制器的方法
公开(公告)号：US06862376B2
公开(公告)日：2005-03-01
申请号：US10895699
申请日：2004-07-21
申请人： Aaron Bond , Ram Jambunathan , Won Jin Choi
发明人： Aaron Bond , Ram Jambunathan , Won Jin Choi
IPC分类号： G02F1/017 , G02F1/01 , G02B6/10 , G02F1/035 , H01L21/00
CPC分类号： B82Y20/00 , G02F1/01708
摘要： A method of manufacturing a monolithic expanded beam mode electroabsorption modulator including a waveguide layer with a two expansion/contraction sections and an electroabsorption section arranged along a longitudinal axis. At least one patterned growth retarding layer is formed on the top surface of a substrate. The waveguide layer is formed on a portion of the top surface of the substrate by selective area growth and has an index of refraction different from the substrate. An electroabsorption portion of the waveguide layer has a thickness which is greater than thicknesses in its other portions. The semiconductor layer is formed on the waveguide layer and includes an index of refraction different from the waveguide. The waveguide and semiconductor layers are defined and etched to form the expansion/contraction and electroabsorption sections of the waveguide layer. Electrical contacts are formed, one electrically coupled to the substrate and another electrically coupled to the semiconductor layer.
摘要翻译：一种制造单片扩展束模式电吸收调制器的方法，该调制器包括具有两个扩展/收缩部分的波导层和沿纵向轴线布置的电吸收部分。至少一个图案化的生长阻滞层形成在衬底的顶表面上。波导层通过选择性区域生长形成在衬底顶表面的一部分上，并且具有不同于衬底的折射率。波导层的电吸收部分的厚度大于其它部分的厚度。半导体层形成在波导层上并且包括与波导不同的折射率。波导管和半导体层被定义和蚀刻以形成波导层的扩展/收缩和电吸收部分。电触点形成，一个电耦合到基板，另一个电耦合到半导体层。

8. 发明授权

US06844954B2 Method of stabilizing electro-absorption modulators (EAM's) performance by maintaining constant absorption with the use of intergrated tap couplers and method of manufacture 失效
标题翻译：通过使用集成抽头耦合器和制造方法保持恒定吸收来稳定电吸收调制器（EAM）的性能的方法
公开(公告)号：US06844954B2
公开(公告)日：2005-01-18
申请号：US10635080
申请日：2003-08-06
申请人： Aaron Bond , John Kai Anderson , Ram Jambunathan
发明人： Aaron Bond , John Kai Anderson , Ram Jambunathan
IPC分类号： G02F1/01 , G02F1/025 , G02F1/035 , G02F1/07
CPC分类号： G02F1/025 , G02F1/0123 , G02F2203/05
摘要： An exemplary monolithic stabilized monolithic transmissive active optical device, such as an electroabsorption modulator (EAM), a variable optical attenuator (VOA), or a semiconductor optical amplifier (SOA), with an output optical tap, is formed from: a substrate; a waveguide layer; a semiconductor layer. The waveguide layer is coupled to the substrate and includes an active medium, which interacts with a predetermined wavelength of light, and is responsive to an electric signal. The electric signal is applied between the substrate and the semiconductor layer. The waveguide layer includes an output optical tap section and an active section adjacent to the output optical tap section. These sections include portions of the active medium. Further embodiments of the present invention incorporate temperature as well as bias control to improve performance of exemplary monolithic transmissive active optical devices.
摘要翻译：具有输出光学抽头的示例性的单片式稳定单片透射有源光学器件，例如电吸收调制器（EAM），可变光衰减器（VOA）或半导体光放大器（SOA））由以下基底形成：波导层; 半导体层。波导层耦合到衬底并且包括与预定波长的光相互作用并且响应于电信号的有源介质。电信号施加在基板和半导体层之间。波导层包括输出光抽头部分和邻近输出光抽头部分的有源部分。这些部分包括活性介质的部分。本发明的另外的实施例包括温度和偏压控制以改善示例性单片透射有源光学器件的性能。

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