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1. 发明申请

US20120262721A1 Arbitrary Optical Waveform Generation Utilizing Optical Phase-Locked Loops 有权
标题翻译：使用光锁相环的任意光波生成
公开(公告)号：US20120262721A1
公开(公告)日：2012-10-18
申请号：US13451489
申请日：2012-04-19
申请人： George Rakuljic , Naresh Satyan , Arseny Vasilyev , Amnon Yariv
发明人： George Rakuljic , Naresh Satyan , Arseny Vasilyev , Amnon Yariv
IPC分类号： G01B9/02
CPC分类号： G01D5/268 , G01D5/266 , G01S7/4911 , G02F1/3536 , G02F1/365 , G02F2001/212 , G02F2201/205 , G02F2201/58 , G02F2202/108 , G02F2203/13 , H01S5/0687
摘要： This invention relates to opto-electronic systems using semiconductor lasers driven by optical phase-locked loops that control the laser's optical phase and frequency. Feedback control provides a means for precise, wideband control of optical frequency and phase, augmented further by four wave mixing stages and digitally stitched independent optical waveforms for enhanced tunability.
摘要翻译：本发明涉及使用由控制激光器的光学相位和频率的光学锁相环驱动的半导体激光器的光电子系统。反馈控制提供了一种用于精确，宽频带控制光频率和相位的手段，进一步通过四个波混频阶段和数字缝合的独立光波形进一步增强，以增强可调性。

2. 发明申请

US20140104593A1 THREE-DIMENSIONAL TOMOGRAPHIC IMAGING CAMERA BASED ON COMPRESSIVE SENSING 有权
标题翻译：基于压缩感测的三维图像成像摄像机
公开(公告)号：US20140104593A1
公开(公告)日：2014-04-17
申请号：US14050296
申请日：2013-10-09
申请人： Naresh Satyan , Arseny Vasilyev , Amnon Yariv , George Rakuljic
发明人： Naresh Satyan , Arseny Vasilyev , Amnon Yariv , George Rakuljic
IPC分类号： G01S17/08
CPC分类号： G01S17/08 , G01S7/4911 , G01S7/4913 , G01S17/325 , G01S17/89
摘要： A detection apparatus and method for FMCW LIDAR employ signals that are modified so that low-cost and low-speed photodetector arrays, such as CCD or CMOS cameras, can be employed for range detection. The LIDAR is designed to measure the range to one or more targets and includes a single mode swept frequency laser (SFL), whose optical frequency is varied with time, as a result of which, a target beam which is reflected back by the one or more targets is shifted in frequency from a reference beam by an amount that is proportional to the relative range to the one or more targets. The reflected target beam(s) is/are combined with the reference beam and detected by the photodetector array. In the case of a sparse number of targets to be detected, Compressive Sensing (CS) techniques can be employed by a processor to reduce the number of measurements necessary to determine the range of each target.
摘要翻译：用于FMCW LIDAR的检测装置和方法采用被修改的信号，使得可以使用诸如CCD或CMOS照相机的低成本和低速光电检测器阵列进行范围检测。激光雷达设计用于测量到一个或多个目标的范围，并且包括单频扫频激光器（SFL），其光频随时间变化，结果是由一个或多个目标光束反射的目标光束更多的目标在频率上从参考光束移位的量与一个或多个目标的相对范围成比例。反射的目标光束与参考光束组合并由光电检测器阵列检测。在要检测的目标数量稀少的情况下，处理器可以使用压缩感测（CS）技术来减少确定每个目标的范围所需的测量次数。

3. 发明授权

US08175126B2 Arbitrary optical waveform generation utilizing optical phase-locked loops 有权
标题翻译：使用光锁相环的任意光波形生成
公开(公告)号：US08175126B2
公开(公告)日：2012-05-08
申请号：US12540643
申请日：2009-08-13
申请人： George Rakuljic , Naresh Satyan , Arseny Vasilyev , Ammon Yariv
发明人： George Rakuljic , Naresh Satyan , Arseny Vasilyev , Ammon Yariv
IPC分类号： H01S5/068 , H01S5/40 , H01S3/10
CPC分类号： G01D5/268 , G01D5/266 , G01S7/4911 , G02F1/3536 , G02F1/365 , G02F2001/212 , G02F2201/205 , G02F2201/58 , G02F2202/108 , G02F2203/13 , H01S5/0687
摘要： This invention relates to opto-electronic systems using semiconductor lasers driven by optical phase-locked loops that control the laser's optical phase and frequency. Feedback control provides a means for precise, wideband control of optical frequency and phase, augmented further by four wave mixing stages and digitally stitched independent optical waveforms for enhanced tunability.
摘要翻译：本发明涉及使用由控制激光器的光学相位和频率的光学锁相环驱动的半导体激光器的光电子系统。反馈控制提供了一种用于精确，宽频带控制光频率和相位的手段，进一步通过四个波混频阶段和数字缝合的独立光波形进一步增强，以增强可调性。

4. 发明授权

US09575182B2 Three-dimensional tomographic imaging camera 有权
标题翻译：三维断层成像相机
公开(公告)号：US09575182B2
公开(公告)日：2017-02-21
申请号：US14586584
申请日：2014-12-30
申请人： Naresh Satyan , Arseny Vasilyev , George Rakuljic , Amnon Yariv
发明人： Naresh Satyan , Arseny Vasilyev , George Rakuljic , Amnon Yariv
IPC分类号： G01S17/32 , G01S17/89 , G01C15/00
CPC分类号： G01S17/325 , G01C15/002 , G01S17/89
摘要： A detection apparatus and method for FMCW LIDAR employ signals whose frequencies are modified so that low-cost and low-speed photodetector arrays, such as CCD or CMOS cameras, can be employed for range detection. The LIDAR is designed to measure the range z to a target and includes a single mode swept frequency laser (SFL), whose optical frequency is varied with time, as a result of which, a target beam which is reflected back by the target is shifted in frequency from a reference beam by an amount that is proportional to the relative range z to the target. The reflected target beam is combined with the reference beam and detected by the photodetector array. By first modulating at least one of the target and reference beams such that the difference between the frequencies of the reflected target beam and the reference beam is reduced to a level that is within the bandwidth of the photodetector array, the need for high-speed detector arrays for full-field imaging is obviated.
摘要翻译：用于FMCW LIDAR的检测装置和方法使用其频率被修改的信号，使得可以使用诸如CCD或CMOS照相机的低成本和低速光电检测器阵列进行范围检测。激光雷达设计用于测量目标的范围z，并且包括单频扫频激光器（SFL），其光频随时间变化，其结果是被目标反射回的目标光束被移位来自参考光束的频率与与目标的相对范围z成比例的量。反射的目标光束与参考光束组合并由光电检测器阵列检测。通过首先调制目标和参考光束中的至少一个，使得反射的目标光束和参考光束的频率之间的差减小到在光电检测器阵列的带宽内的水平，则需要高速检测器排除了全场成像的阵列。

5. 发明申请

US20090296751A1 ELECTRONICALLY PHASE-LOCKED LASER SYSTEMS 有权
标题翻译：电子锁相激光系统
公开(公告)号：US20090296751A1
公开(公告)日：2009-12-03
申请号：US12020424
申请日：2008-01-25
申请人： ANTHONY S. KEWITSCH , GEORGE A. RAKULJIC
发明人： ANTHONY S. KEWITSCH , GEORGE A. RAKULJIC
IPC分类号： H01S3/098 , H01S3/00 , H01S5/065
CPC分类号： H01S3/2383 , H01S3/06754 , H01S3/10053 , H01S3/1618 , H01S3/2308 , H01S5/042 , H01S5/06821 , H01S5/4025
摘要： Semiconductor diode lasers are phase-locked by direct current injection and combined to form a single coherent output beam. The optical power is amplified by use of fiber amplifiers. Electronically control of the optical phases of each emitter enables power efficient combining of output beams to be maintained under dynamic conditions.
摘要翻译：半导体二极管激光器通过直流注入锁相并组合形成单个相干输出光束。光功率通过使用光纤放大器放大。电子控制每个发射器的光学相位使能够有效地组合输出光束以在动态条件下保持。

6. 发明申请

US20090245306A1 High Performance Tunable Lasers Utilizing Optical Phase-Locked Loops 有权
标题翻译：高性能可调谐激光器利用光锁相环
公开(公告)号：US20090245306A1
公开(公告)日：2009-10-01
申请号：US12416150
申请日：2009-04-01
申请人： George A. Rakuljic
发明人： George A. Rakuljic
IPC分类号： H01S3/13
CPC分类号： H01S5/4006 , H01S5/0085 , H01S5/06246 , H01S5/0687 , H01S5/4012 , H01S2301/02
摘要： This invention relates to opto-electronic systems using semiconductor lasers driven by optical phase-locked loops that control the laser's optical phase and frequency. Feedback control provides a means for precise control of optical frequency and phase, including the ability for broadband electronic tunability of optical signals and the cascading of multiple lasers for enhanced tunability and coherent combining for increased output power.
摘要翻译：本发明涉及使用由控制激光器的光学相位和频率的光学锁相环驱动的半导体激光器的光电子系统。反馈控制提供了一种用于精确控制光频率和相位的手段，包括光信号的宽带电子可调谐能力和多个激光器的级联，以增强可调谐性和相干组合，以提高输出功率。

7. 发明授权

US08953240B2 Frequency-chirped semiconductor diode laser phase-locked optical system 有权
标题翻译：频啁啾半导体二极管激光锁相光学系统
公开(公告)号：US08953240B2
公开(公告)日：2015-02-10
申请号：US13566973
申请日：2012-08-03
申请人： George Rakuljic
发明人： George Rakuljic
IPC分类号： H04B10/17 , H01S3/067 , H01S3/10 , H01S3/23 , H01S3/13 , H01S3/16
CPC分类号： H01S3/06754 , H01S3/10015 , H01S3/1307 , H01S3/1618 , H01S3/2383 , H01S2301/03
摘要： A chirped diode laser (ChDL) is employed for seeding optical amplifiers and/or dissimilar optical paths, which simultaneously suppresses stimulated Brillouin scattering (SBS) and enables coherent combination. The seed spectrum will appear broadband to suppress the SBS, but the well-defined chirp will have the coherence and duration to allow the active phasing of multiple amplifiers and/or dissimilar optical paths. The phasing is accomplished without optical path-length matching by interfering each amplifier output with a reference, processing the resulting signal with a phase lock loop, and using the error signal to drive an acousto-optic frequency shifter at the front end of each optical amplifier and/or optical path.
摘要翻译：啁啾二极管激光器（ChDL）用于种子光放大器和/或不同的光路，其同时抑制受激布里渊散射（SBS）并且实现相干组合。种子频谱将出现宽带以抑制SBS，但明确定义的啁啾将具有相干性和持续时间，以允许多个放大器和/或不同光路的有源定相。通过用参考信号干扰每个放大器输出，通过相位锁定环来处理所得到的信号，并且使用误差信号来驱动每个光放大器前端的声光移频器和/或光路。

8. 发明授权

US07848370B2 Electronically phase-locked laser systems 有权
标题翻译：电子锁相激光系统
公开(公告)号：US07848370B2
公开(公告)日：2010-12-07
申请号：US12020424
申请日：2008-01-25
申请人： Anthony S. Kewitsch , George A. Rakuljic
发明人： Anthony S. Kewitsch , George A. Rakuljic
IPC分类号： H01S3/13
CPC分类号： H01S3/2383 , H01S3/06754 , H01S3/10053 , H01S3/1618 , H01S3/2308 , H01S5/042 , H01S5/06821 , H01S5/4025
摘要： Semiconductor diode lasers are phase-locked by direct current injection and combined to form a single coherent output beam. The optical power is amplified by use of fiber amplifiers. Electronically control of the optical phases of each emitter enables power efficient combining of output beams to be maintained under dynamic conditions.
摘要翻译：半导体二极管激光器通过直流注入锁相并组合形成单个相干输出光束。光功率通过使用光纤放大器放大。电子控制每个发射器的光学相位使能够有效地组合输出光束以在动态条件下保持。

9. 发明申请

US20060239312A1 Semiconductor Lasers in Optical Phase-Locked Loops 审中-公开
标题翻译：光锁相环中的半导体激光器
公开(公告)号：US20060239312A1
公开(公告)日：2006-10-26
申请号：US11379409
申请日：2006-04-20
申请人： Anthony Kewitsch , George Rakuljic , Amnon Yariv
发明人： Anthony Kewitsch , George Rakuljic , Amnon Yariv
IPC分类号： H01S3/13 , H01S3/00 , H01S5/00
CPC分类号： H01S5/42 , H01S3/0064 , H01S3/10053 , H01S3/1304 , H01S5/005 , H01S5/0264 , H01S5/042 , H01S5/0656 , H01S5/06821 , H01S5/0683 , H01S5/4062 , H01S5/4081 , H01S5/423 , H01S5/50 , H01S2301/206
摘要： This invention relates to opto-electronic systems using semiconductor lasers driven by feedback control circuits that control the laser's optical phase and frequency. Feedback control provides a means for coherent phased laser array operation and reduced phase noise. Systems and methods to coherently combine a multiplicity of lasers driven to provide high power coherent outputs with tailored spectral and wavefront characteristics are disclosed. Systems of improving the phase noise characteristics of one or more semiconductor lasers are further disclosed.
摘要翻译：本发明涉及使用由控制激光器的光学相位和频率的反馈控制电路驱动的半导体激光器的光电系统。反馈控制提供了一种用于相干相位激光阵列操作和降低相位噪声的方法。公开了将驱动以提供高功率相干输出的多个激光器相干组合以及定制的光谱和波前特征的系统和方法。进一步公开了改善一个或多个半导体激光器的相位噪声特性的系统。

10. 发明授权

US09933554B2 High-coherence semiconductor light sources 有权
公开(公告)号：US09933554B2
公开(公告)日：2018-04-03
申请号：US15017560
申请日：2016-02-05
申请人： CALIFORNIA INSTITUTE OF TECHNOLOGY , TELARIS INC.
发明人： Christos T. Santis , Scott T. Steger , Amnon Yariv , Naresh Satyan , George Rakuljic
IPC分类号： H01S5/12 , G02B6/00 , H01S5/02 , H01S5/10 , H01S5/223 , H01S5/022 , H01S5/024 , H01S5/343 , H01S5/20 , H01S5/22 , H01S5/00
CPC分类号： G02B6/00 , H01S5/0014 , H01S5/021 , H01S5/0224 , H01S5/02272 , H01S5/02415 , H01S5/1032 , H01S5/1203 , H01S5/1209 , H01S5/2063 , H01S5/2224 , H01S5/2231 , H01S5/34306 , H01S2301/02 , H01S2301/163
摘要： A laser resonator includes an active material, which amplifies light associated with an optical gain of the resonator, and passive materials disposed in proximity with the active material. The resonator oscillates over one or more optical modes, each of which corresponds to a particular spatial energy distribution and resonant frequency. Based on a characteristic of the passive materials, for the particular spatial energy distribution corresponding to at least one of the optical modes, a preponderant portion of optical energy is distributed apart from the active material. The passive materials may include a low loss material, which stores the preponderant optical energy portion distributed apart from the active material, and a buffer material disposed between the low loss material and the active material, which controls a ratio of the optical energy stored in the low loss material to a portion of the optical energy in the active material. A Vernier grating and tuning mechanism can be used to tune the low-noise laser.

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