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1. 发明申请

US20090252187A1 Minimizing Power Variations In Laser Sources 审中-公开
标题翻译：最小化激光源的功率变化
公开(公告)号：US20090252187A1
公开(公告)日：2009-10-08
申请号：US12333967
申请日：2008-12-12
申请人： Anthony Sebastian Bauco , Douglas Llewellyn Butler , Martin Hai Hu , Dragan Pikula , Daniel Ohen Ricketts
发明人： Anthony Sebastian Bauco , Douglas Llewellyn Butler , Martin Hai Hu , Dragan Pikula , Daniel Ohen Ricketts
IPC分类号： H01S3/13
CPC分类号： H01S5/06255 , H01S5/0092 , H01S5/06256 , H01S5/06835 , H01S5/0687 , H04N9/3129 , H04N9/3161
摘要： The present invention relates generally to semiconductor lasers and laser projection systems. According to one embodiment of the present invention, a projected laser image is generated utilizing an output beam of the semiconductor laser. A gain current control signal is generated by a laser feedback loop to control the gain section of the semiconductor laser. Wavelength fluctuations of the semiconductor laser are narrowed by incorporating a wavelength recovery operation in a drive current of the semiconductor laser and by initiating the wavelength recovery operations as a function of the gain current control signal or an optical intensity error signal. Additional embodiments are disclosed and claimed.
摘要翻译：本发明一般涉及半导体激光器和激光投射系统。根据本发明的一个实施例，利用半导体激光器的输出光束产生投射的激光图像。增益电流控制信号由激光反馈回路产生，以控制半导体激光器的增益部分。通过在半导体激光器的驱动电流中并入波长恢复操作并且通过作为增益电流控制信号或光强度误差信号的函数启动波长恢复操作来使半导体激光器的波长波动变窄。公开并要求保护附加实施例。

2. 发明申请

US20110205619A1 Wavelength Conversion Device With Microlens And Optical Package Incorporating The Same 有权
标题翻译：具有微透镜和光学封装的波长转换器件结合在一起
公开(公告)号：US20110205619A1
公开(公告)日：2011-08-25
申请号：US12709719
申请日：2010-02-22
申请人： Douglas Llewellyn Butler , Martin Hai Hu , Anping Liu
发明人： Douglas Llewellyn Butler , Martin Hai Hu , Anping Liu
IPC分类号： G02F1/365
CPC分类号： G02B6/262 , G02B6/4206 , G02F1/3558 , G02F1/365 , G02F1/377 , H01S3/108 , H01S3/109 , H01S5/02268 , H01S5/125 , H01S5/14
摘要： An optical package is provided comprising a laser diode and a wavelength conversion device. The laser diode and the wavelength conversion device define an external laser cavity and the wavelength conversion device is tilted relative to the output face of the laser diode to define a tilt angle φ that is less than approximately 85°. The input face of the wavelength conversion device comprises a pair of tapered facets and a microlens. The pair of tapered facets and the microlens are defined on the input face such that they share respective portions of the facial waveguide region on the input face, with the tapered facets occupying peripheral portions of the facial waveguide region on the input face and the microlens occupying an interior portion of the facial waveguide region on the input face. Each of the pair of tapered facets define a facet angle α within the facial waveguide region that is less than the facet angle α and is greater than approximately 45°. Additional embodiments are disclosed and claimed.
摘要翻译：提供了包括激光二极管和波长转换装置的光学封装。激光二极管和波长转换装置限定外部激光腔，并且波长转换装置相对于激光二极管的输出面倾斜以限定倾斜角度＆phgr; 小于约85°。波长转换装置的输入面包括一对锥形面和微透镜。一对锥形面和微透镜被限定在输入面上，使得它们共享输入面上的面波导区域的相应部分，锥形面占据输入面上的面波导区域的周边部分，微透镜占据输入面上的面波导区域的内部部分。所述一对锥形面中的每一个在所述面波导区域内限定小于所述小平面角α并且大于大约45°的小平面角α。公开并要求保护附加实施例。

3. 发明申请

US20110044359A1 Intracavity Conversion Utilizing Narrow Band Reflective SOA 审中-公开
标题翻译：利用窄带反射SOA进行腔内转换
公开(公告)号：US20110044359A1
公开(公告)日：2011-02-24
申请号：US12543123
申请日：2009-08-18
申请人： Douglas Llewellyn Butler , Martin Hai Hu , Anping Liu
发明人： Douglas Llewellyn Butler , Martin Hai Hu , Anping Liu
IPC分类号： H01S3/10 , H01S5/187
CPC分类号： H01S5/14 , H01S3/109 , H01S5/0612 , H01S5/06256
摘要： An external cavity laser source is provided comprising an external laser cavity, a tunable distributed Bragg reflector (DBR), a DBR tuning element, an output reflector, a semiconductor optical amplifier (SOA), a frequency-selective optical coupler/reflector, and a wavelength conversion device. The tunable DBR, the DBR tuning element, the SOA, and the output reflector are configured to generate a fundamental laser signal characterized by a fundamental bandwidth that is narrower than the QPM bandwidth of the wavelength conversion device and can be tuned to a fundamental center wavelength within the QPM bandwidth. The frequency-selective optical coupler/reflector is configured for substantially non-reflective two-way transmission of optical signals at the fundamental center wavelength and is further configured for substantially complete reflection of wavelength-converted optical signals generated by the wavelength conversion device. The output reflector is configured for substantially non-reflective transmission of wavelength-converted optical signals generated by the wavelength conversion device and for substantially complete reflection of optical signals at the fundamental center wavelength. Additional embodiments are disclosed and claimed.
摘要翻译：提供了外腔激光源，其包括外部激光腔，可调分布布拉格反射器（DBR），DBR调谐元件，输出反射器，半导体光放大器（SOA），频率选择性光耦合器/反射器波长转换装置。可调谐DBR，DBR调谐元件，SOA和输出反射器被配置为产生基本激光信号，该基本激光信号的特征在于比波长转换器件的QPM带宽窄的基本带宽，并且可以调谐到基本中心波长在QPM带宽内。频率选择性光耦合器/反射器被配置为用于在基本中心波长处的光信号的基本上非反射双向传输，并且还被配置为用于基本上完全反射由波长转换装置产生的波长转换的光信号。输出反射器被配置为用于由波长转换器件产生的波长转换的光信号的基本上不反射的透射，并且用于基本中心波长处的光信号的基本上完全的反射。公开并要求保护附加实施例。

4. 发明授权

US08111452B2 Wavelength conversion device with microlens and optical package incorporating the same 有权
标题翻译：具有微透镜的波长转换装置和包含其的光学封装
公开(公告)号：US08111452B2
公开(公告)日：2012-02-07
申请号：US12709719
申请日：2010-02-22
申请人： Douglas Llewellyn Butler , Martin Hai Hu , Anping Liu
发明人： Douglas Llewellyn Butler , Martin Hai Hu , Anping Liu
IPC分类号： G02F2/02 , H01S3/10
CPC分类号： G02B6/262 , G02B6/4206 , G02F1/3558 , G02F1/365 , G02F1/377 , H01S3/108 , H01S3/109 , H01S5/02268 , H01S5/125 , H01S5/14
摘要： An optical package is provided comprising a laser diode and a wavelength conversion device. The laser diode and the wavelength conversion device define an external laser cavity and the wavelength conversion device is tilted relative to the output face of the laser diode to define a tilt angle φ that is less than approximately 85°. The input face of the wavelength conversion device comprises a pair of tapered facets and a microlens. The pair of tapered facets and the microlens are defined on the input face such that they share respective portions of the facial waveguide region on the input face, with the tapered facets occupying peripheral portions of the facial waveguide region on the input face and the microlens occupying an interior portion of the facial waveguide region on the input face. Each of the pair of tapered facets define a facet angle α within the facial waveguide region that is less than the facet angle α and is greater than approximately 45°. Additional embodiments are disclosed and claimed.
摘要翻译：提供了包括激光二极管和波长转换装置的光学封装。激光二极管和波长转换装置限定外部激光腔，并且波长转换装置相对于激光二极管的输出面倾斜以限定倾斜角度＆phgr; 小于约85°。波长转换装置的输入面包括一对锥形面和微透镜。一对锥形面和微透镜被限定在输入面上，使得它们共享输入面上的面波导区域的相应部分，锥形面占据输入面上的面波导区域的周边部分，微透镜占据输入面上的面波导区域的内部部分。所述一对锥形面中的每一个在所述面波导区域内限定小于所述小平面角α并且大于大约45°的小平面角α。公开并要求保护附加实施例。

5. 发明申请

US20170240454A1 LAYERED GLASS STRUCTURES 审中-公开
公开(公告)号：US20170240454A1
公开(公告)日：2017-08-24
申请号：US15050589
申请日：2016-02-23
申请人： Douglas Llewellyn Butler , Matthew John Dejneka , Daniel Warren Hawtof , Dale Robert Powers , Pushkar Tandon
发明人： Douglas Llewellyn Butler , Matthew John Dejneka , Daniel Warren Hawtof , Dale Robert Powers , Pushkar Tandon
IPC分类号： C03B37/027 , G02B6/10 , C03B37/018 , H01S3/063
CPC分类号： G02B6/10 , C03B19/1453 , C03B19/1469 , C03B19/1492 , C03B23/037 , C03B23/047 , C03B2201/31 , C03B2201/32 , C03B2201/34 , C03B2201/42 , H01S3/0632 , H01S3/17
摘要： Layered glass structures and fabrication methods are described. The methods include depositing soot on a dense glass substrate to form a composite structure and sintering the composite structure to form a layered glass structure. The dense glass substrate may be derived from an optical fiber preform that has been modified to include a planar surface. The composite structure may include one or more soot layers. The layered glass structure may be formed by combining multiple composite structures to form a stack, followed by sintering and fusing the stack. The layered glass structure may further be heated to softening and drawn to control linear dimensions. The layered glass structure or drawn layered glass structure may be configured as a planar waveguide.

6. 发明授权

US10185084B2 Layered glass structures 有权
公开(公告)号：US10185084B2
公开(公告)日：2019-01-22
申请号：US15050589
申请日：2016-02-23
申请人： Douglas Llewellyn Butler , Matthew John Dejneka , Daniel Warren Hawtof , Dale Robert Powers , Pushkar Tandon
发明人： Douglas Llewellyn Butler , Matthew John Dejneka , Daniel Warren Hawtof , Dale Robert Powers , Pushkar Tandon
IPC分类号： G02B6/02 , G02B6/10 , H01S3/063 , C03B19/14 , C03B23/037 , C03B23/047 , H01S3/17
摘要： Layered glass structures and fabrication methods are described. The methods include depositing soot on a dense glass substrate to form a composite structure and sintering the composite structure to form a layered glass structure. The dense glass substrate may be derived from an optical fiber preform that has been modified to include a planar surface. The composite structure may include one or more soot layers. The layered glass structure may be formed by combining multiple composite structures to form a stack, followed by sintering and fusing the stack. The layered glass structure may further be heated to softening and drawn to control linear dimensions. The layered glass structure or drawn layered glass structure may be configured as a planar waveguide.

7. 发明授权

US09612400B2 Multi-core optical fiber 有权
公开(公告)号：US09612400B2
公开(公告)日：2017-04-04
申请号：US15099682
申请日：2016-04-15
申请人： Douglas Llewellyn Butler , Andreas Matiss , Eric Stephan ten Have
发明人： Douglas Llewellyn Butler , Andreas Matiss , Eric Stephan ten Have
IPC分类号： G02B6/12 , G02B6/34 , G02B6/26 , G02B6/30 , G02B6/02 , G02B6/42 , G02B6/43
CPC分类号： G02B6/30 , G02B6/02042 , G02B6/12004 , G02B6/262 , G02B6/34 , G02B6/4214 , G02B6/4249 , G02B6/43
摘要： A multi-core optical fiber (100) comprises a plurality of optical cores (1, . . . , 8) to respectively transmit light and a plurality of cleaves (110a, 100b, 110c, 110d, 110e, 110f, 110g, 110h) extending from a surface (102) of the multi-core optical fiber (100) into the multi-core optical fiber. A first cleave (110a) comprises a surface (111a) to couple light out of the optical fiber, wherein a first optical core (1) ends at the surface (111a) of the first cleave (110a). An at least one second cleave (110b, . . . , 110h) comprises a surface (111b, . . . , 111h) to couple light out of the optical fiber, wherein at least one second optical core (2, . . . , 8) ends at the surface (111b, . . . , 111h) of the at least one second cleave (110b, . . . , 110h). The first and the at least one second cleave (110a, . . . , 110h) are staggered along the longitudinal axis (101) of the multi-core optical fiber (100).

8. 发明申请

US20160231508A1 MULTI-CORE OPTICAL FIBER 有权
标题翻译：多芯光纤
公开(公告)号：US20160231508A1
公开(公告)日：2016-08-11
申请号：US15099682
申请日：2016-04-15
申请人： Douglas Llewellyn Butler , Andreas Matiss , Eric Stephen ten Have
发明人： Douglas Llewellyn Butler , Andreas Matiss , Eric Stephen ten Have
IPC分类号： G02B6/30 , G02B6/12 , G02B6/34 , G02B6/02
CPC分类号： G02B6/30 , G02B6/02042 , G02B6/12004 , G02B6/262 , G02B6/34 , G02B6/4214 , G02B6/4249 , G02B6/43
摘要： A multi-core optical fiber (100) comprises a plurality of optical cores (1, . . . , 8) to respectively transmit light and a plurality of cleaves (110a, 100b, 110c, 110d, 110e, 110f, 110g, 110h) extending from a surface (102) of the multi-core optical fiber (100) into the multi-core optical fiber. A first cleave (110a) comprises a surface (111a) to couple light out of the optical fiber, wherein a first optical core (1) ends at the surface (111a) of the first cleave (110a). An at least one second cleave (110b, . . . , 110h) comprises a surface (111b, . . . , 111h) to couple light out of the optical fiber, wherein at least one second optical core (2, . . . , 8) ends at the surface (111b, . . . , 111h) of the at least one second cleave (110b, . . . , 110h). The first and the at least one second cleave (110a, . . . , 110h) are staggered along the longitudinal axis (101) of the multi-core optical fiber (100).
摘要翻译：多核光纤（100）包括分别透射光和多个分裂（110a，100b，110c，110d，110e，110f，110g，110h）的多个光学核（1 ...，8）从多芯光纤（100）的表面（102）延伸到多芯光纤中。第一切口（110a）包括将光耦合到光纤中的表面（111a），其中第一光纤芯（1）在第一切割（110a）的表面（111a）处终止。至少一个第二切割（110b，...，110h）包括将光耦合到光纤之外的表面（111b，...，111h），其中至少一个第二光纤（2，...， 8）终止于至少一个第二裂开（110b，...，110h）的表面（111b，...，111h）。第一和至少一个第二裂开（110a，...，110h）沿着多芯光纤（100）的纵向轴线（101）交错。

9. 发明授权

US08175127B2 System of method for dynamic range extension 有权
标题翻译：动态范围扩展方法系统
公开(公告)号：US08175127B2
公开(公告)日：2012-05-08
申请号：US12970370
申请日：2010-12-16
申请人： Aravanan Gurusami , Douglas Llewellyn Butler , Timothy K. Zahnley , Scott R. Dahl , Peter G. Wigley
发明人： Aravanan Gurusami , Douglas Llewellyn Butler , Timothy K. Zahnley , Scott R. Dahl , Peter G. Wigley
IPC分类号： H01S3/13 , H01S3/00
CPC分类号： H01S3/06754 , H01S3/094003 , H01S3/094076 , H01S3/0941 , H01S3/10069 , H01S3/1301
摘要： The present invention generally relates to the operation of optical network equipment such as optical amplifiers. In one aspect, a method of operating an optical amplifier is provided such that output of the optical amplifier avoids the effects of operating an optical gain medium in a non-linear (kink) region of an L-I curve. The method generally includes operating an optical gain medium in a fully off state or fully on state above the kink region with a PWM signal. In another aspect, the effects of the kink region may be compensated for by utilizing a lookup table. A sample of the optical power of an amplified optical signal may be used to select an entry in the lookup table that compensates for non-linearities in the kink region. In yet a further aspect, a lookup table may be used to control a pulse modulator to compensate for non-linearites in the kink region of the L-I curve.
摘要翻译：本发明一般涉及诸如光放大器之类的光网络设备的操作。一方面，提供了一种操作光放大器的方法，使得光放大器的输出避免了在L-I曲线的非线性（扭结）区域中操作光学增益介质的影响。该方法通常包括以PWM信号操作处于扭结区域的完全关闭状态或完全导通状态的光学增益介质。在另一方面，可以通过利用查找表来补偿扭结区域的影响。放大的光信号的光功率的样本可以用于选择补偿在扭结区域中的非线性的查找表中的条目。在另一方面，可以使用查找表来控制脉冲调制器来补偿L-I曲线的扭结区域中的非线性元素。

10. 发明授权

US07961380B2 Fast power transient supression in constant power-mode controlled optical amplifiers 有权
标题翻译：恒功率模式控制光放大器中的快速功率瞬态抑制
公开(公告)号：US07961380B2
公开(公告)日：2011-06-14
申请号：US12070523
申请日：2008-02-19
申请人： Brian Shia , Douglas Llewellyn Butler , Martin Williams
发明人： Brian Shia , Douglas Llewellyn Butler , Martin Williams
IPC分类号： H04B10/17 , H04B10/12
CPC分类号： H01S3/06754 , H01S3/10015 , H01S3/1301 , H01S3/1305 , H01S3/1306 , H04B10/296
摘要： The specification describes an improved approach to suppressing fast transients in optical amplifier systems. The approach relies on operating the amplifier in an automatic power-mode control with an extra loss component. It is applicable to optical amplifiers based on rare earth amplifier media, such as erbium doped fiber amplifiers (EDFAs).
摘要翻译：该规范描述了抑制光放大器系统中的快速瞬变的改进方法。该方法依赖于在具有额外损耗分量的自动功率模式控制中操作放大器。它适用于基于稀土放大器介质的光放大器，如掺铒光纤放大器（EDFA）。

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