公开(公告)号：US20160087395A1

公开(公告)日：2016-03-24

申请号：US14859706

申请日：2015-09-21

Applicant: Sandia Corporation

Inventor： Michael C. Wanke

IPC: H01S3/109 ,  H01S5/026 ,  H01S5/34

CPC classification number: H01S3/08027 ,  H01S3/08036 ,  H01S3/109 ,  H01S5/026 ,  H01S5/0262 ,  H01S5/0604 ,  H01S5/0605 ,  H01S5/0623 ,  H01S5/0651 ,  H01S5/0657 ,  H01S5/068 ,  H01S5/1046 ,  H01S5/1096 ,  H01S5/3401 ,  H01S2302/02

Abstract: Rather than down-convert optical frequencies, a QCL laser system directly generates a THz frequency comb in a compact monolithically integrated chip that can be locked to an absolute frequency without the need of a frequency-comb synthesizer. The monolithic, absolute frequency comb can provide a THz frequency reference and tool for high-resolution broad band spectroscopy.

Abstract translation: QCL激光系统不是降频转换光频，而是在紧凑的单片集成芯片中直接产生一个THz频率梳，可以锁定到绝对频率，而不需要频梳合成器。 单片绝对频率梳可提供用于高分辨率宽带光谱的THz频率参考和工具。

公开(公告)号：US20150244331A1

公开(公告)日：2015-08-27

申请号：US14469166

申请日：2014-08-26

Applicant: NATIONAL CHENG KUNG UNIVERSITY

Inventor： Sheng-Kwang HWANG ,  Yu-Han HUNG

IPC: H03F3/08 ,  H03F3/21

CPC classification number: H03F3/08 ,  G02F1/3538 ,  H01S5/0623 ,  H01S5/5054 ,  H03F2200/393 ,  H04B10/25759

Abstract: Period-one nonlinear dynamics of semiconductor lasers are utilized to provide an apparatus for photonic microwave power amplification in radio-over-fiber links through optical modulation depth improvement. The microwave power amplification apparatus includes a microwave-modulated optical signal generation module and a microwave power amplification module. The amplification capability of the present microwave power amplification apparatus covers a broad microwave range, from less than 25 GHz to more than 60 GHz, and a wide gain range, from less than 10 dB to more than 30 dB. The microwave phase quality is mainly preserved while the microwave power is largely amplified, improving the signal-to-noise ratio up to at least 25 dB. The bit-error ratio at 1.25 Gb/s is better than 10−9 and a sensitivity improvement of up to at least 15 dB is feasible.

Abstract translation: 半导体激光器的周期性非线性动力学被用于通过光调制深度改进来提供用于光纤无线电链路中的光子微波功率放大的装置。 微波功率放大装置包括微波调制光信号发生模块和微波功率放大模块。 本微波功率放大装置的放大能力涵盖从小于25GHz到大于60GHz的宽微波范围，以及从小于10dB到大于30dB的宽增益范围。 微波相位质量主要保持在微波功率大幅度放大，提高信噪比达到至少25 dB。 1.25 Gb / s的误码率优于10-9，灵敏度提高至少达到15 dB是可行的。

公开(公告)号：US20150116046A1

公开(公告)日：2015-04-30

申请号：US14525891

申请日：2014-10-28

Applicant: Seiko Epson Corporation

Inventor： Tetsuo NISHIDA

IPC: G01J4/04 ,  H03L7/26 ,  G01J1/42

CPC classification number: G02B27/286 ,  G04F5/145 ,  H01S5/005 ,  H01S5/0623 ,  H01S5/06832 ,  H01S5/0687 ,  H01S5/18355 ,  H03L7/26

Abstract: An optical module of an atomic oscillator includes: a surface emitting laser adapted to emit polarized light; a polarization element irradiated with the light emitted from the surface emitting laser, and having a polarization transmission axis disposed so as to be rotated by 45 degrees with respect to a polarization direction of the polarized light; a λ/4 plate irradiated with light having been transmitted through the polarization element, and having a fast axis disposed so as to be rotated by 45 degrees with respect to the polarization transmission axis; a gas cell encapsulating an alkali metal gas, and irradiated with light having been transmitted through the λ/4 plate; and a light detection section adapted to detect intensity of light having been transmitted through the gas cell.

Abstract translation: 原子振荡器的光学模块包括：适于发射偏振光的表面发射激光器; 用从所述表面发射激光器发出的光照射的偏振元件，具有相对于所述偏振光的偏振方向旋转45度的偏振透射轴; 被透射通过偏振元件的光照射的λ/ 4板，并且具有相对于偏振透射轴旋转45度的快轴; 封装有碱金属气体的气体池，并且被透过λ/ 4板的光照射; 以及光检测部，其适于检测已经透过气室的光的强度。

公开(公告)号：US08064740B2

公开(公告)日：2011-11-22

申请号：US12517732

申请日：2007-11-30

Applicant: Bernd Sartorius ,  Michael Feiginov ,  Cezary Sydlo

Inventor： Bernd Sartorius ,  Michael Feiginov ,  Cezary Sydlo

IPC: G02B6/12

CPC classification number: H04B10/5053 ,  G01N21/3581 ,  H01S5/026 ,  H01S5/0623 ,  H01S5/4025 ,  H04B10/505 ,  H04B10/5051

Abstract: An inexpensive and compact arrangement for the electrical control and fast modulation of THz transmitters and THz measuring systems is proposed, wherein said arrangement is stable, requires no mechanical movements and operates with a purely electric control, consumes little power and also has a high speed potential for the phase modulation. This is achieved by replacing the components known from the state of the art, namely two lasers, the beam splitters, the couplers and the mechanically moved delay line, with a compact monolithic or hybrid integrated chip (10), particularly a so-called optical master chip without moving parts that comprises at least the two lasers (1, 2), the beam splitters (S3.1, S3.2), the couplers (K3.1, K3.2) and a phase modulator (4.1) for one of the laser waves such that the two generated beat signals are respectively delivered to different chip outputs (6, 7) in order to separately control the THz transmitter and the local oscillator.

Abstract translation: 提出了一种用于THz发射器和THz测量系统的电气控制和快速调制的廉价且紧凑的布置，其中所述布置是稳定的，不需要机械移动并且仅用于电气控制来操作，消耗很少的功率并且还具有高速度电位 用于相位调制。 这是通过用紧凑的单片或混合集成芯片（10）代替现有技术中已知的组件，即两个激光器，分束器，耦合器和机械移动的延迟线来实现的，特别是所谓的光学 至少包括两个激光器（1,2），分束器（S3.1，S3.2），耦合器（K3.1，K3.2）和相位调制器（4.1）的移动部件的主芯片， 使得两个产生的拍频信号分别传送到不同的芯片输出（6,7）的激光波形之一，以分别控制THz发射机和本地振荡器。

公开(公告)号：US20100303111A1

公开(公告)日：2010-12-02

申请号：US12788235

申请日：2010-05-26

Applicant: Vladimir Kupershmidt

Inventor： Vladimir Kupershmidt

IPC: H01S3/13

CPC classification number: H01S5/14 ,  H01S5/0623 ,  H01S5/40

Abstract: An optical phase lock loop (OPLL) system is disclosed that includes a master external cavity laser (ECL), and a substantially identical slave ECL. The master and slave ECLs are fabricated using a planar semiconductor device with waveguide-integrated planar Bragg gratings (PBG). Both the master and slave ECLs have a narrow linewidth and a low frequency-noise. Each of the ECLs has their own controller-modulator circuits for thermal tuning or electrical tuning via direct modulation. A laser-select-logic (LSL) module receives and processes a filtered phase error signal from a loop filter coupled to an electronic PLL device, and directs the processed phase error signal to one or both of the master and slave controller-modulators according to a logical determination of a required mode of operation of the OPLL system in order to achieve a stable and identical phase performance of the master and the slave ECLs. The required mode of operation is chosen from a locking mode, a prediction mode, a tracking mode, and a searching mode.

Abstract translation: 公开了一种光锁相环（OPLL）系统，其包括主外腔激光器（ECL）和基本相同的从ECL。 主和从ECL是使用具有波导集成平面布拉格光栅（PBG）的平面半导体器件制造的。 主从ECL都具有窄线宽和低频噪声。 每个ECL都有自己的控制器调制器电路，用于通过直接调制进行热调谐或电调谐。 激光选择逻辑（LSL）模块从耦合到电子PLL器件的环路滤波器接收并处理经滤波的相位误差信号，并将经处理的相位误差信号引导至主控制器和从属控制器调制器中的一个或两者，根据 逻辑确定OPLL系统的所需操作模式，以实现主和从ECL的稳定和相同的相位性能。 从锁定模式，预测模式，跟踪模式和搜索模式中选择所需的操作模式。

公开(公告)号：US20100246609A1

公开(公告)日：2010-09-30

申请号：US12223106

申请日：2007-01-19

Applicant: Richard Phelan ,  John A. Patchell ,  James C. O'Gorman

Inventor： Richard Phelan ,  John A. Patchell ,  James C. O'Gorman

IPC: H01S5/065 ,  H01S3/30 ,  H01S5/10 ,  H01L21/04

CPC classification number: H01S5/4025 ,  H01S5/0623 ,  H01S5/065 ,  H01S5/4087

Abstract: The present application provides a semiconductor Fabry-Perot dual mode lasing device having terahertz characteristics resulting in significant advantages over the prior art including for example operation at room temperatures and the absence of re-growth processing requirements.

Abstract translation: 本申请提供了具有太赫兹特性的半导体法布里 - 珀罗双模式激光装置，其导致了与现有技术相比的显着优点，包括例如在室温下操作和不再生长处理要求。

公开(公告)号：US20100158056A1

公开(公告)日：2010-06-24

申请号：US12495616

申请日：2009-06-30

Applicant: Jae-Heon Shin ,  Kyung-Hyun Park ,  Nam-Je Kim ,  Chul-Wook Lee ,  Eun-Deok Sim ,  Sang-Pil Han ,  Yong-Soon Baek

Inventor： Jae-Heon Shin ,  Kyung-Hyun Park ,  Nam-Je Kim ,  Chul-Wook Lee ,  Eun-Deok Sim ,  Sang-Pil Han ,  Yong-Soon Baek

IPC: H01S3/13

CPC classification number: H01S5/06256 ,  H01S5/0623 ,  H01S5/1215 ,  H01S2302/02

Abstract: Provided is a semiconductor laser device including: a gain area where multi-wavelength lights are generated and gain are provided; a first reflection area where among the multi-wavelength lights, a first-wavelength light is reflected to the gain area in response to a first selection signal; a second reflection area where among the multi-wavelength lights, a second-wavelength light is reflected to the gain area; and a phase control area where a phase of the second-wavelength light is shifted in response to a phase control signal, the phase control area being disposed between the first reflection layer and the second reflection layer.

Abstract translation: 本发明提供一种半导体激光装置，具备：生成多波长光并增益的增益区域; 第一反射区域，其中在所述多波长光之中，响应于第一选择信号，第一波长光被反射到所述增益区域; 第二反射区域，其中在多波长光中，第二波长光被反射到增益区域; 以及相位控制区域，其中所述第二波长光的相位响应于相位控制信号而移位，所述相位控制区域设置在所述第一反射层和所述第二反射层之间。

公开(公告)号：US20100142571A1

公开(公告)日：2010-06-10

申请号：US12506073

申请日：2009-07-20

Applicant: Kyung Hyun PARK ,  Jaeheon Shin ,  Namje Kim ,  Chul-Wook Lee ,  Eundeok Sim ,  Sang-Pil Han ,  Yongsoon Baek

Inventor： Kyung Hyun PARK ,  Jaeheon Shin ,  Namje Kim ,  Chul-Wook Lee ,  Eundeok Sim ,  Sang-Pil Han ,  Yongsoon Baek

IPC: H01S3/10 ,  H01S3/08 ,  H01S3/04

CPC classification number: H01S5/06258 ,  B82Y20/00 ,  H01S5/0265 ,  H01S5/0612 ,  H01S5/0623 ,  H01S5/1017 ,  H01S5/1231 ,  H01S5/34306

Abstract: Provided is a multiple distributed feedback laser device. The laser device includes an active layer, a first diffraction grating, and a second diffraction grating. The substrate includes a first distributed feedback region, a modulation region, and a second distributed feedback region. The first diffraction grating is coupled to the active layer in the first distributed feedback region. The second diffraction grating is coupled to the active layer in the second distributed feedback region. In addition, the laser device includes a first micro heater and a second micro heater. The first micro heater supplies heat to the first diffraction grating. The second micro heater supplies heat to the second diffraction grating. The first micro heater and the second micro heater are controlled independently from each other.

Abstract translation: 提供了一种多分布式反馈激光装置。 激光装置包括有源层，第一衍射光栅和第二衍射光栅。 衬底包括第一分布反馈区域，调制区域和第二分布反馈区域。 第一衍射光栅耦合到第一分布反馈区域中的有源层。 第二衍射光栅耦合到第二分布反馈区域中的有源层。 此外，激光装置包括第一微加热器和第二微加热器。 第一微加热器向第一衍射光栅提供热量。 第二微加热器向第二衍射光栅提供热量。 第一微加热器和第二微加热器彼此独立地控制。

公开(公告)号：US20090206283A1

公开(公告)日：2009-08-20

申请号：US12300192

申请日：2007-05-13

Applicant: Jeffrey Levy

Inventor： Jeffrey Levy

IPC: G01J3/10 ,  G21G4/00

CPC classification number: H01J1/34 ,  H01J21/02 ,  H01S1/02 ,  H01S5/0623

Abstract: An electric device operable with a THz-range frequency of the device output is presented. The device comprises a photocathode installed in either one of a diode, triode and tetrode configuration, and is exposed to illumination. In some embodiments of the invention, the device is configured as a diode and photomixing is used for illumination of the photocathode with light in the THz range, the diode converting this input light signal into an electrical output in the THz range, which operates a signal transmitter/receiver. In some other embodiments of the invention, the device is configured as a triode or tetrode, where the electrodes have small dimensions (about 1 micron or less) and are spaced from one another a distance not exceeding 1 micron. The photocathode is kept under certain illumination, and electrical signal applied to one of the electrodes results in the THz output at one of the other electrodes.

Abstract translation: 提出了可以以设备输出的THz范围频率工作的电气设备。 该装置包括安装在二极管，三极管和四极结构中的任一个中的光电阴极，并且暴露于照明。 在本发明的一些实施例中，该器件被配置为二极管，并且光混合用于以THz范围内的光照射光电阴极，二极管将该输入光信号转换成THz范围内的电输出，该电输出操作信号 发射机/接收机。 在本发明的一些其他实施例中，该器件被配置为三极管或四极管，其中电极具有小尺寸（约1微米或更小）并且彼此间隔不超过1微米的距离。 光电阴极保持在一定的照明范围内，并且电信号施加到一个电极，导致在其它电极之一处的THz输出。

公开(公告)号：US07369863B2

公开(公告)日：2008-05-06

申请号：US10496956

申请日：2001-11-27

Applicant: Thomas Holzhauer ,  Markus Höhfeld ,  Mario Ruprecht

Inventor： Thomas Holzhauer ,  Markus Höhfeld ,  Mario Ruprecht

IPC: H04Q7/20

CPC classification number: H01S5/06258 ,  H01S5/026 ,  H01S5/0623 ,  H01S5/50

Abstract: The invention relates to positional data recording, and in particular, to a method and system for polling the concordance of a mobile radio terminal user for the transmission of positional data to a poller. Specifically, polling data are supplemented by a specification stipulated for the poller on the basis of which it van be determined at least whether the consent of the mobile radio terminal is to be obtained for forwarding the mobile radio position data to the poller.

Abstract translation: 本发明涉及位置数据记录，特别涉及一种用于轮询移动无线电终端用户用于向轮询机发送位置数据的方法和系统。 具体来说，轮询数据由对轮询器规定的规范进行补充，在此基础上，至少确定移动无线电终端的同意是否获得用于将移动无线电位置数据转发到轮询器。