公开(公告)号：US20060187461A1

公开(公告)日：2006-08-24

申请号：US11380684

申请日：2006-04-28

Applicant: Walid Atia ,  Dale Flanders ,  Petros Kotidis ,  Mark Kuznetsov

Inventor： Walid Atia ,  Dale Flanders ,  Petros Kotidis ,  Mark Kuznetsov

IPC: G01B9/02 ,  G01J3/45

CPC classification number: G01J3/36 ,  G01J3/0256 ,  G01J3/10 ,  G01J3/26 ,  G01N21/255

Abstract: Integrated spectroscopy systems are disclosed. In some examples, integrated tunable detectors, using one or multiple Fabry-Perot tunable filters, are provided. Other examples use integrated tunable sources. The tunable source combines one or multiple diodes, such as superluminescent light emitting diodes (SLED), and a Fabry Perot tunable filter or etalon. The advantages associated with the use of the tunable etalon are that it can be small, relatively low power consumption device. For example, newer microelectrical mechanical system (MEMS) implementations of these devices make them the size of a chip. This increases their robustness and also their performance. In some examples, an isolator, amplifier, and/or reference system is further provided integrated.

Abstract translation: 公开了集成光谱系统。 在一些示例中，提供使用一个或多个法布里 - 珀罗可调滤波器的集成可调谐检测器。 其他示例使用集成的可调源。 可调谐源组合了一个或多个二极管，例如超发光发光二极管（SLED）和法布里珀罗可调滤波器或标准具。 与可调谐标准具的使用相关的优点是它可以是小的，相对较低的功率消耗装置。 例如，这些器件的较新的微电机械系统（MEMS）实现使其成为芯片的尺寸。 这增加了它们的稳健性和性能。 在一些示例中，还集成了隔离器，放大器和/或参考系统。

公开(公告)号：US20060132782A1

公开(公告)日：2006-06-22

申请号：US11018687

申请日：2004-12-21

Applicant: Dale Flanders ,  Walid Atia ,  Mark Kuznetsov

Inventor： Dale Flanders ,  Walid Atia ,  Mark Kuznetsov

IPC: G01N21/59

CPC classification number: G01J3/10 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/0224 ,  G01N21/39 ,  G01N2021/399 ,  G01N2201/0612 ,  G01N2201/062 ,  G01N2201/08

Abstract: A semiconductor source spectroscopy system controls optical power variation of the tunable signal due to polarization dependent loss in the system and thus improves the noise performance of the system. It relies on using polarization control between the source and the sample and/or the sample and the detector.

Abstract translation: 半导体源光谱系统由于系统中偏振相关损耗而控制可调信号的光功率变化，从而提高了系统的噪声性能。 它依赖于使用源与样品和/或样品和检测器之间的偏振控制。

公开(公告)号：US20060072112A1

公开(公告)日：2006-04-06

申请号：US10954616

申请日：2004-09-30

Applicant: Dale Flanders ,  Walid Atia ,  Mark Kuznetsov

Inventor： Dale Flanders ,  Walid Atia ,  Mark Kuznetsov

IPC: G01N21/00

CPC classification number: G01J3/10

Abstract: A multi semiconductor source tunable spectroscopy system has two or more semiconductor sources for generating tunable optical signals that are tunable over different spectral bands. The system enables the combination of these tunable signals to form an output signal that is tunable over a combined band including these individual spectral bands of the separate semiconductor sources. The system further compensates for spectral roll-off associated with the semiconductor sources. Specifically, near the limits of the semiconductor sources' spectral bands, the power in the tunable signal tends to degrade or decrease. The system compensates for this roll-off using drive current control, attenuators, or electronic compensation.

Abstract translation: 多半导体源可调谐光谱系统具有用于产生可调谐光信号的两个或更多个半导体源，其可调谐的不同光谱带。 该系统使得这些可调谐信号的组合能够形成可在包括单独半导体源的这些单个频谱带的组合频带上调谐的输出信号。 该系统进一步补偿与半导体源相关联的光谱滚降。 具体来说，在半导体光源频带的极限附近，可调信号的功率趋于降低或降低。 该系统使用驱动电流控制，衰减器或电子补偿来补偿此滚降。

公开(公告)号：US20060065834A1

公开(公告)日：2006-03-30

申请号：US10953046

申请日：2004-09-29

Applicant: Dale Flanders ,  Walid Atia ,  Mark Kuznetsov

Inventor： Dale Flanders ,  Walid Atia ,  Mark Kuznetsov

IPC: G01N21/35

CPC classification number: G01N21/39 ,  G01J1/32 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/0224 ,  G01J3/0256 ,  G01J3/10 ,  G01J3/26 ,  G01J3/4338 ,  G01J2003/1286 ,  H01S3/08013 ,  H01S3/083 ,  H01S5/005 ,  H01S5/0064 ,  H01S5/0085 ,  H01S5/02248 ,  H01S5/02252 ,  H01S5/06817 ,  H01S5/0683 ,  H01S5/1071 ,  H01S5/141 ,  H01S2301/02

Abstract: An optical power control system for a semiconductor source spectroscopy system controls power fluctuations in the tunable signal from the spectroscopy system and thus improves the noise performance of the system. This general solution has advantages relative to other systems that simply detect reference power levels during the scan and then correct the detected signal after interaction with the sample by reducing the requirements for coordinating the operation of the sample detectors and power or reference detectors. The spectroscopy system comprises a semiconductor source and a tunable filter. The combination of the semiconductor source and tunable signal illuminate a sample with a tunable signal, being tunable over a scan band. The power control system comprises an amplitude detector system for detecting the power of the tunable optical signal and power control system for regulating the amplitude of the tunable optical signal in response to its detected power.

公开(公告)号：US07450862B2

公开(公告)日：2008-11-11

申请号：US10392353

申请日：2003-03-19

Applicant: Dale C. Flanders ,  Walid Atia ,  Eric E. Fitch ,  Minh Van Le ,  Randal A. Murdza ,  Robert L. Payer ,  Jeffrey A. Korn ,  Xiaomei Wang ,  Walter R. Buchwald ,  L. James Newman, III

Inventor： Dale C. Flanders ,  Walid Atia ,  Eric E. Fitch ,  Minh Van Le ,  Randal A. Murdza ,  Robert L. Payer ,  Jeffrey A. Korn ,  Xiaomei Wang ,  Walter R. Buchwald ,  L. James Newman, III

IPC: H04B10/06

CPC classification number: H01S5/02216 ,  H01S5/02248 ,  H01S5/02284 ,  H01S5/0683

Abstract: A detector system for a fiber optic component is insensitive to stray light. Specifically, the invention comprises a detector chip, which converts received light into an electric signal. A baffle substrate is positioned over the detector chip. This baffle substrate has a transmission port through which an optical signal is transmitted to the detector chip. As a result, light that is not directed to be transmitted through the port is blocked by the baffle substrate. In this way, it rejects stray light that may be present in the hermetic package. A detector substrate is provided on which the detector chip is mounted. This detector substrate preferably comprises electrical traces to which the detector chip is electrically connected. The detector substrate can further comprise bond pads for wire bonding to make electrical connections to the electrical traces.

Abstract translation: 用于光纤部件的检测器系统对杂散光不敏感。 具体地，本发明包括将接收的光转换成电信号的检测器芯片。 挡板基板位于检测器芯片上。 该挡板基板具有传输端口，通过该传输端口将光信号传输到检测器芯片。 结果，不被透射通过端口的光被挡板衬底阻挡。 以这种方式，它拒绝可能存在于密封包装中的杂散光。 设置有检测器芯片安装在其上的检测器基板。 该检测器基板优选地包括检测器芯片电连接到的电迹线。 检测器基板还可以包括用于引线键合的接合焊盘以与电迹线进行电连接。

公开(公告)号：US20060197958A1

公开(公告)日：2006-09-07

申请号：US11380686

申请日：2006-04-28

Applicant: Walid Atia ,  Dale Flanders ,  Petros Kotidis ,  Mark Kuznetsov

Inventor： Walid Atia ,  Dale Flanders ,  Petros Kotidis ,  Mark Kuznetsov

IPC: G01B9/02

CPC classification number: G01J3/36 ,  G01J3/0256 ,  G01J3/10 ,  G01J3/26 ,  G01N21/255

Abstract: Integrated spectroscopy systems are disclosed. In some examples, integrated tunable detectors, using one or multiple Fabry-Perot tunable filters, are provided. Other examples use integrated tunable sources. The tunable source combines one or multiple diodes, such as superluminescent light emitting diodes (SLED), and a Fabry Perot tunable filter or etalon. The advantages associated with the use of the tunable etalon are that it can be small, relatively low power consumption device. For example, newer microelectrical mechanical system (MEMS) implementations of these devices make them the size of a chip. This increases their robustness and also their performance. In some examples, an isolator, amplifier, and/or reference system is further provided integrated.

Abstract translation: 公开了集成光谱系统。 在一些示例中，提供使用一个或多个法布里 - 珀罗可调滤波器的集成可调谐检测器。 其他示例使用集成的可调源。 可调谐源组合了一个或多个二极管，例如超发光发光二极管（SLED）和法布里珀罗可调滤波器或标准具。 与可调谐标准具的使用相关的优点是它可以是小的，相对较低的功率消耗装置。 例如，这些器件的较新的微电机械系统（MEMS）实现使其成为芯片的尺寸。 这增加了它们的稳健性和性能。 在一些示例中，还集成了隔离器，放大器和/或参考系统。

公开(公告)号：US20060187457A1

公开(公告)日：2006-08-24

申请号：US11062896

申请日：2005-02-22

Applicant: Walid Atia ,  Dale Flanders

Inventor： Walid Atia ,  Dale Flanders

IPC: G01N21/59

CPC classification number: G01J3/10 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/0251 ,  G01J3/26 ,  G01J3/433

Abstract: A spectroscopy system comprises a tunable semiconductor laser, such as an external cavity laser, that generates a tunable signal. A detector is provided for detecting the tunable signal after interaction with a sample. In this way, the system is able to determine the spectroscopic response of the sample by tuning the laser of the scan band and monitoring the detector's response. An integrating device, such as an integrating sphere, is interposed optically between the tunable semiconductor laser and the detector. This integrating device is used to mitigate the effects of parasitic spectral noise, such as noise that is generated by speckle or the combination of single- and multi-mode optical fibers in the transmission link between the tunable semiconductor laser and the detector.

Abstract translation: 光谱系统包括可调谐半导体激光器，例如外腔激光器，其产生可调信号。 提供了一种检测器，用于在与样品相互作用后检测可调信号。 以这种方式，该系统能够通过调谐扫描带的激光并监测检测器的响应来确定样品的光谱响应。 诸如积分球的积分装置被光学地插入在可调半导体激光器和检测器之间。 该集成装置用于减轻寄生光谱噪声的影响，例如由可调谐半导体激光器和检测器之间的传输链路中的斑点或单模和多模光纤的组合产生的噪声。

公开(公告)号：US20060072633A1

公开(公告)日：2006-04-06

申请号：US10953048

申请日：2004-09-29

Applicant: Dale Flanders ,  Xinfa Ma ,  Walid Atia

Inventor： Dale Flanders ,  Xinfa Ma ,  Walid Atia

IPC: H01S3/10

CPC classification number: G01N21/39 ,  G01J1/4257 ,  G01J3/02 ,  G01J3/0213 ,  G01J3/0256 ,  G01J3/10 ,  G01J3/26 ,  G01J3/433 ,  G01J2003/2866 ,  G01N2021/391 ,  G01N2021/399 ,  G01N2201/08 ,  H01S3/08013 ,  H01S3/083 ,  H01S5/005 ,  H01S5/0064 ,  H01S5/02252 ,  H01S5/141

Abstract: An optical power control system for a semiconductor source spectroscopy system controls power fluctuations in the tunable signal from the spectroscopy system and thus improves the noise performance of the system. This general solution has advantages relative to other systems that simply detect reference power levels during the scan and then correct the detected signal after interaction with the sample by reducing the requirements for coordinating the operation of the sample detectors and power or reference detectors. The spectroscopy system comprises a semiconductor source and a tunable filter. The combination of the semiconductor source and tunable signal illuminate a sample with a tunable signal, being tunable over a scan band. The power control system comprises an amplitude detector system for detecting the power of the tunable optical signal and power control system for regulating the amplitude of the tunable optical signal in response to its detected power.

Abstract translation: 用于半导体源光谱系统的光功率控制系统控制来自光谱系统的可调谐信号中的功率波动，从而改善系统的噪声性能。 该通用解决方案相对于在扫描期间简单地检测参考功率电平然后在与样品相互作用之后校正检测到的信号的其它系统具有优点，通过减少协调样品检测器和功率或参考检测器的操作的要求。 光谱系统包括半导体源和可调谐滤波器。 半导体源和可调信号的组合用可调信号照射样品，可在扫描带上调谐。 功率控制系统包括用于检测可调谐光信号的功率的振幅检测器系统和用于响应于其检测到的功率来调节可调谐光信号的幅度的功率控制系统。

公开(公告)号：US09337619B2

公开(公告)日：2016-05-10

申请号：US13271388

申请日：2011-10-12

Applicant: Walid Atia ,  Mark E. Kuznetsov ,  Dale C. Flanders

Inventor： Walid Atia ,  Mark E. Kuznetsov ,  Dale C. Flanders

IPC: G01N21/47 ,  H01S5/14 ,  H01S5/022 ,  H01S5/0683 ,  H01S5/0687

CPC classification number: H01S5/141 ,  G01N21/4795 ,  H01S5/02284 ,  H01S5/0683 ,  H01S5/0687

Abstract: A frequency swept laser source that generates an optical signal that is tuned over a spectral scan band at single discrete wavelengths associated with longitudinal modes of the swept laser source. Laser hopping over discrete single cavity modes allows long laser coherence length even under dynamic very high speed tuning conditions. A ramp drive to the laser is used to linearize laser frequency tuning. A beam splitter is used to divide the optical signal between a reference arm leading to a reference reflector and a sample arm leading to a sample. A detector system detects the optical signal from the reference arm and the sample arm for generating depth profiles and images of the sample.

Abstract translation: 频率扫描激光源，其产生在与扫描的激光源的纵向模式相关联的单独离散波长下在光谱扫描带上调谐的光信号。 在离散单腔模式下的激光跳跃即使在动态非常高速的调谐条件下也能实现长激光相干长度。 激光器的斜坡驱动用于线性化激光频率调谐。 分束器用于将通向参考反射器的参考臂和通向样品的样品臂之间的光信号分开。 检测器系统检测来自参考臂和样品臂的光信号，用于产生样品的深度分布和图像。

公开(公告)号：US20080019705A1

公开(公告)日：2008-01-24

申请号：US11649337

申请日：2007-01-03

Applicant: David Caplan ,  Walid Atia

Inventor： David Caplan ,  Walid Atia

IPC: H04B10/06 ,  G01C3/08

CPC classification number: H04B10/25137 ,  H04B10/505 ,  H04B10/5051 ,  H04B10/508

Abstract: A system includes an optical transmitter that outputs an optical signal having a substantially Gaussian waveform and an optical receiver that is optically coupled to the optical transmitter and has an impulse response essentially matching the waveform. The impulse response and waveform preferably match in the time domain. The transmitter and receiver may be average-power-limited, using, for example, an erbium-doped fiber amplifier. To achieve a high signal-to-noise ratio, the waveform may be designed to minimize jitter, sample duration, matching parasitics, and inter-symbol interference (ISI). Such a waveform may be a return-to-zero (RZ) Gaussian or Gaussian-like waveform and may be transmitted in a variety of modulation formats. Further, the system may be used in WDM or TDM systems. A method for characterizing the time domain impulse response of an optical element used in the optical receiver is provided, where the method is optionally optimized using deconvolution and/or cross-correlation techniques.

Abstract translation: 一种系统包括：光发射机，其输出具有基本高斯波形的光信号和光接收器，光接收器光学耦合到光发射机并具有基本上与波形匹配的脉冲响应。 脉冲响应和波形优选在时域中匹配。 发射机和接收机可以是平均功率限制的，例如使用掺铒光纤放大器。 为了实现高信噪比，可以设计波形以最小化抖动，采样持续时间，匹配寄生效应和符号间干扰（ISI）。 这样的波形可以是归零（RZ）高斯或类似高斯波形的波形，并且可以以各种调制格式发送。 此外，该系统可以在WDM或TDM系统中使用。 提供了一种用于表征在光接收机中使用的光学元件的时域脉冲响应的方法，其中该方法可选地使用去卷积和/或互相关技术优化。