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公开(公告)号：US20170207597A1
公开(公告)日：2017-07-20
申请号：US15329459
申请日：2015-07-21
CPC分类号： H01S3/06791 , H01S3/0675 , H01S3/06754 , H01S3/08027 , H01S3/082 , H01S3/10092 , H01S3/106 , H01S3/1112 , H01S5/5018
摘要： This invention relates to the field of laser technology and more particularly to the ultra-short pulse generation methods and generators. One round trip of the ultra-short light pulse formation inside a generator optical loop comprises these steps: amplification of the light pulse, spectral broadening of the amplified light pulse due to the optical Kerr effect inside the optically transparent medium, selection of the predeterminated spectral components of the spectrally broadened light pulses by using the first spectrally-sensitive optical element, then again follows amplification of the selected light pulses, spectral broadening of the amplified light pulse due to the optical Kerr effect inside the optically transparent medium and selection of the predeterminated spectral components of the spectrally broadened light pulses by using the second spectrally-sensitive optical element, where spectral components of the light pulses selected using the first spectrally-sensitive optical element are different than the spectral components of the light pulses selected using the second spectrally-sensitive optical element.
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公开(公告)号：US09660411B2
公开(公告)日：2017-05-23
申请号：US15042803
申请日：2016-02-12
发明人： Andrew Rickman , Aaron John Zilkie
IPC分类号： H01S3/10 , H01S3/106 , H01S3/083 , H01S5/14 , H01S3/08 , H01S5/02 , H01S5/10 , H01S5/125 , H01S3/105 , H01S5/028 , H01S5/12 , G02B6/12
CPC分类号： H01S3/1062 , G02B6/12007 , H01S3/08027 , H01S3/083 , H01S3/10053 , H01S3/105 , H01S3/106 , H01S5/021 , H01S5/028 , H01S5/1007 , H01S5/1071 , H01S5/1209 , H01S5/125 , H01S5/14 , H01S5/142
摘要： A wavelength tunable silicon-on-insulator (SOI) laser comprising: a laser cavity including: a semiconductor gain medium having a front end and a back end, wherein a mirror of the laser cavity is located at the back end of the semiconductor gain medium; and a phase-tunable waveguide platform coupled to the front end of the semiconductor gain medium, the phase-tunable waveguide platform comprising: a first resonator and a second resonator; at least one resonator being a phase-tunable resonator; wherein the first resonator is any one of: an MMI device including a pair of reflective surfaces defining a resonator cavity therebetween such that the device is configured to act as a Fabry-Perot filter; a ring resonator; or a waveguide Fabry-Perot filter; and wherein the second resonator is any one of: an MMI device including a pair of reflective surfaces defining a resonator cavity therebetween such that the device is configured to act as a Fabry-Perot filter; a ring resonator; or a waveguide Fabry-Perot filter.
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公开(公告)号：US09638858B2
公开(公告)日：2017-05-02
申请号：US14451105
申请日：2014-08-04
CPC分类号： G02B6/124 , G02B6/1228 , G02B2006/12061 , G02B2006/12104 , G02B2006/12135 , H01S3/106 , H01S5/0612 , H01S5/141
摘要： A hybrid optical source that provides an optical signal having a wavelength (or a narrow band of wavelengths) is described. This hybrid optical source includes an optical amplifier (such as a III-V semiconductor optical amplifier) that is butt-coupled or vertically coupled to a silicon-on-insulator (SOI) platform, and which outputs an optical signal. The SOI platform includes an optical waveguide that conveys the optical signal. A temperature-compensation element included in the optical waveguide compensates for temperature dependence of the indexes of refraction of the optical amplifier and the optical waveguide. In addition, a reflector, adjacent to the optical waveguide after the temperature-compensation element, reflects a portion of the optical signal and transmits another portion of the optical signal that has the wavelength.
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公开(公告)号：US20170093114A1
公开(公告)日：2017-03-30
申请号：US14869002
申请日：2015-09-29
申请人： Kotura, Inc.
发明人： Saeed Fathololoumi , Dazeng Feng , Amir Ali Tavallaee , Jacob Levy , Pegah Seddighian , Mehdi Asghari
CPC分类号： H01S3/10053 , H01S3/09 , H01S3/1028 , H01S3/106 , H01S5/0021 , H01S5/02248 , H01S5/02446 , H01S5/026 , H01S5/0687 , H01S5/141
摘要： An optical system includes a laser cavity on a base. The laser cavity generates a light signal in response to application of an electrical current to the laser cavity. The system includes first electronics that apply a target level of the electrical current to the laser cavity so as to cause the laser cavity to generate the light signal. The light signal experiences mode hops at electrical current levels that shift to higher current levels in response to increasing laser operation times. A first one of the mode hops occurs at a first current level and a second one of the mode hops occurs at a second current level that is higher than the first current level. The system also includes a phase shifter that interacts with the laser cavity so as to shift the mode hops to lower current levels than occur in the absence of the phase shifter.
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15.发明授权公开(公告)号：US09488569B2
公开(公告)日：2016-11-08
申请号：US14300326
申请日：2014-06-10
发明人： Carol Y. Scarlett
CPC分类号： G01N21/23 , G01N21/1717 , G01N2021/1727 , H01S3/105 , H01S3/106
摘要： Methods and systems for determining material composition of a test sample may be provided. The test sample may be placed in a magnetic region having a magnetic field. A light beam may be directed at the test sample in the magnetic region. A birefringence in the light beam that has passed through the test sample may be detected. The material composition of the test sample may be determined based on the detected birefringence in the light beam.
摘要翻译： 可以提供用于确定测试样品的材料组成的方法和系统。 测试样品可以放置在具有磁场的磁性区域中。 光束可以被引导到磁性区域中的测试样品。 可以检测通过测试样品的光束中的双折射。 可以基于检测到的双折射来确定测试样品的材料组成。
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公开(公告)号：US09486144B2
公开(公告)日：2016-11-08
申请号：US14167808
申请日：2014-01-29
申请人： FUJIFILM Corporation
发明人： Kazuhiro Hirota , Tadashi Kasamatsu
IPC分类号： A61B5/05 , A61B5/00 , A61B8/13 , H01S3/106 , A61B8/08 , A61B5/145 , A61B8/00 , H01S3/08 , H01S3/092 , H01S3/11
CPC分类号： A61B5/0095 , A61B5/14542 , A61B8/0891 , A61B8/13 , A61B8/463 , A61B8/5207 , A61B8/5261 , A61B8/54 , H01S3/08027 , H01S3/092 , H01S3/106 , H01S3/11
摘要： Using a laser source unit, pulse laser beams having a plurality of wavelengths is switched and emitted. A Q switch is inserted into an optical resonator including a pair of mirrors which face each other with a laser rod interposed therebetween. A wavelength selection unit includes a plurality of band pass filters having different transmission wavelengths, and selectively inserts the plurality of band pass filters into a light path of the optical resonator. A trigger control circuit controls driving unit that drives the wavelength selection unit so that the band pass filters inserted into the light path of the optical resonator are switched at a predetermined switching speed. In addition, the trigger control circuit causes the laser rod to be irradiated with excitation light from a flash lamp, and then turns on the Q switch at a timing when the wavelength selection unit inserts the band pass filter.
摘要翻译： 使用激光源单元，切换并发射具有多个波长的脉冲激光束。 将Q开关插入到包括一对反射镜的光学谐振器中，所述反射镜彼此面对，激光棒彼此相对。 波长选择单元包括具有不同透射波长的多个带通滤波器，并且将多个带通滤波器选择性地插入到光谐振器的光路中。 触发控制电路控制驱动波长选择单元的驱动单元，使得插入到光谐振器的光路中的带通滤波器以预定的切换速度被切换。 此外，触发控制电路使得激光棒被来自闪光灯的激发光照射，然后在波长选择单元插入带通滤光器的时刻接通Q开关。
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公开(公告)号：US20160301185A1
公开(公告)日：2016-10-13
申请号：US15183137
申请日：2016-06-15
发明人： Jason S. Orcutt
IPC分类号： H01S3/136 , H01S5/022 , H01S5/14 , H01S5/042 , H01S5/30 , H01S5/125 , H01S5/02 , H01S5/068 , H01S5/028
CPC分类号： H01S3/136 , H01S3/08027 , H01S3/10053 , H01S3/1055 , H01S3/106 , H01S5/021 , H01S5/02292 , H01S5/0287 , H01S5/042 , H01S5/0612 , H01S5/06821 , H01S5/12 , H01S5/125 , H01S5/14 , H01S5/141 , H01S5/3013 , H04B10/802 , H04J14/0202
摘要： A technique related to a semiconductor chip is provided. An optical gain chip is attached to a semiconductor substrate. An integrated photonic circuit is on the semiconductor substrate, and the optical gain chip is optically coupled to the integrated photonic circuit thereby forming a laser cavity. The integrated photonic circuit includes an active intra-cavity thermo-optic optical phase tuner element, an intra-cavity optical band-pass filter, and an output coupler band-reflect optical grating filter with passive phase compensation. The active intra-cavity thermo-optic optical phase tuner element, the intra-cavity optical band-pass filter, and the output coupler band-reflect optical grating filter with passive phase compensation are optically coupled together.
摘要翻译： 提供了与半导体芯片相关的技术。 光学增益芯片附着在半导体衬底上。 集成光子电路在半导体衬底上，并且光学增益芯片光耦合到集成光子电路，从而形成激光腔。 集成光子电路包括有源腔内热光学光学相位调谐器元件，腔内光学带通滤波器和具有被动相位补偿的输出耦合器带反射光栅滤波器。 有源腔内热光学光学相位调谐器元件，腔内光学带通滤波器和具有无源相位补偿的输出耦合器带反射光栅滤波器被光耦合在一起。
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公开(公告)号：US20160261086A1
公开(公告)日：2016-09-08
申请号：US15057532
申请日：2016-03-01
申请人： CORNING INCORPORATED
IPC分类号： H01S3/106
CPC分类号： H01S3/1062 , G02F1/21 , G02F2001/213 , G02F2202/36 , G02F2203/15 , H01S3/106 , H01S3/1118
摘要： Described herein are optical devices based on two-dimensional materials and methods for making such devices. In particular, the articles described herein are useful in the control and modulation of light via graphene mono- or multilayers. methods for improved transfer of graphene from formation substrates to target substrates. The improved articles provide exceedingly high modulation depths in vis-NIR light transmission, with small insertion losses, thus revealing the potential of graphene for fast electro-optics within such a technologically important range of optical frequencies.
摘要翻译： 这里描述的是基于二维材料的光学装置和用于制造这种装置的方法。 特别地，本文描述的制品可用于通过石墨烯单层或多层的光的控制和调制。 用于改善石墨烯从地层衬底转移到目标衬底的方法。 改进的物品在vis-NIR光传输中提供了非常高的调制深度，具有小的插入损耗，从而在这样的技术上重要的光学频率范围内揭示了用于快速电光学的石墨烯的潜力。
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公开(公告)号：US09401579B2
公开(公告)日：2016-07-26
申请号：US14090374
申请日：2013-11-26
申请人： IMRA America, Inc.
发明人： Martin E. Fermann , Ingmar Hartl , Gennady Imeshev
IPC分类号： H01S3/10 , H01S3/11 , H01S3/00 , H01S3/067 , H01S3/094 , H01S3/105 , H01S3/106 , H01S3/109 , H01S3/16
CPC分类号： H01S3/0057 , G02F1/3517 , G02F2001/3528 , H01S3/0078 , H01S3/0092 , H01S3/067 , H01S3/0675 , H01S3/06754 , H01S3/094042 , H01S3/10 , H01S3/105 , H01S3/1053 , H01S3/106 , H01S3/1067 , H01S3/109 , H01S3/1106 , H01S3/1118 , H01S3/1616
摘要： Modelocked fiber laser resonators may be coupled with optical amplifiers. An isolator optionally may separate the resonator from the amplifier. A reflective optical element on one end of the resonator having a relatively low reflectivity may be employed to couple light from the resonator to the amplifier. Enhanced pulse-width control may be provided with concatenated sections of both polarization-maintaining and non-polarization-maintaining fibers. Apodized fiber Bragg gratings and integrated fiber polarizers may also be included in the laser cavity to assist in linearly polarizing the output of the cavity. Very short pulses with a large optical bandwidth may be obtained by matching the dispersion value of the grating to the inverse of the dispersion of the intra-cavity fiber. Frequency comb sources may be constructed from such modelocked fiber oscillators. Low dispersion and an in-line interferometer that provides feedback may assist in controlling the frequency components output from the comb source.
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公开(公告)号：US20160170141A1
公开(公告)日：2016-06-16
申请号：US14451105
申请日：2014-08-04
CPC分类号： G02B6/124 , G02B6/1228 , G02B2006/12061 , G02B2006/12104 , G02B2006/12135 , H01S3/106 , H01S5/0612 , H01S5/141
摘要： A hybrid optical source that provides an optical signal having a wavelength (or a narrow band of wavelengths) is described. This hybrid optical source includes an optical amplifier (such as a III-V semiconductor optical amplifier) that is butt-coupled or vertically coupled to a silicon-on-insulator (SOI) platform, and which outputs an optical signal. The SOI platform includes an optical waveguide that conveys the optical signal. A temperature-compensation element included in the optical waveguide compensates for temperature dependence of the indexes of refraction of the optical amplifier and the optical waveguide. In addition, a reflector, adjacent to the optical waveguide after the temperature-compensation element, reflects a portion of the optical signal and transmits another portion of the optical signal that has the wavelength.
摘要翻译： 描述了提供具有波长（或波长窄带）的光信号的混合光源。 该混合光源包括与绝缘体上硅（SOI）平台对接或垂直耦合并且输出光信号的光放大器（例如III-V半导体光放大器）。 SOI平台包括传送光信号的光波导。 包括在光波导中的温度补偿元件补偿光放大器和光波导的折射率的温度依赖性。 此外，在温度补偿元件之后与光波导相邻的反射器反射光信号的一部分并透射具有波长的光信号的另一部分。
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