公开(公告)号：US07346091B2

公开(公告)日：2008-03-18

申请号：US11033585

申请日：2005-01-12

Applicant: Kalin Spariosu ,  Alexander A. Betin

Inventor： Kalin Spariosu ,  Alexander A. Betin

IPC: H01S3/091

CPC classification number: H01S3/0941 ,  F41H13/00 ,  H01S3/0404 ,  H01S3/042 ,  H01S3/0604 ,  H01S3/0608 ,  H01S3/0612 ,  H01S3/0625 ,  H01S3/07 ,  H01S3/094053 ,  H01S3/094057 ,  H01S3/094084 ,  H01S3/102 ,  H01S3/1026 ,  H01S3/1608 ,  H01S3/1643

Abstract: A laser system and method. The inventive laser includes an annular gain medium; a source of pump energy; and an arrangement for concentrating energy from the source on the gain medium. In a more specific implementation, a mechanism is included for rotating the gain medium to effect extraction of pump energy and cooling. In the illustrative embodiment, the pump source is a diode array. Energy from the array is coupled to the medium via an array of optical fibers. The outputs of the fibers are input to a concentrator that directs the pump energy onto a pump region of the medium. In the best mode, plural disks of gain media are arranged in an offset manner to provide a single resonator architecture. First and second mirrors are added to complete the resonator. In accordance with the inventive teachings, a method for pumping and cooling a laser is taught. In the illustrative embodiment, the inventive method includes the steps of providing a gain medium; pumping energy into a region of the gain medium; moving the medium; extracting energy from the region of the medium; and cooling region of the medium.

公开(公告)号：US20050169323A1

公开(公告)日：2005-08-04

申请号：US10771047

申请日：2004-02-02

Applicant: Kalin Spariosu ,  Alexander Betin

Inventor： Kalin Spariosu ,  Alexander Betin

IPC: H01S3/067 ,  H01S3/23 ,  H01S3/10

CPC classification number: H01S3/067 ,  H01S3/0675 ,  H01S3/08045 ,  H01S3/0805 ,  H01S3/09415 ,  H01S3/1608 ,  H01S3/1643 ,  H01S3/2383

Abstract: A robust scalable laser. The laser includes plural fiber laser resonators. A cavity that is external to the fiber laser resonators combines plural laser beams output from the plural fiber laser resonators into a single output laser beam. In a specific embodiment, the plural fiber laser resonators are eye-safe double-clad Er:YAG laser resonators that are pumped via laser diode arrays.

Abstract translation: 强大的可扩展激光。 激光器包括多个光纤激光谐振器。 在光纤激光谐振器外部的空腔将从多个光纤激光谐振器输出的多个激光束组合成单个输出激光束。 在具体实施例中，多个光纤激光谐振器是通过激光二极管阵列泵浦的眼睛安全的双包层Er：YAG激光谐振器。

公开(公告)号：US08350223B2

公开(公告)日：2013-01-08

申请号：US12533679

申请日：2009-07-31

Applicant: Nathan M. Mintz ,  Kalin Spariosu

Inventor： Nathan M. Mintz ,  Kalin Spariosu

IPC: G01D18/00

CPC classification number: G01J1/08 ,  G01J1/58 ,  G01J5/522 ,  G01J2001/0481 ,  G01N21/255 ,  G01N21/274

Abstract: In one embodiment, a quantum dot based radiation source includes a housing having a wall defining a cavity therein, a plurality of quantum dots disposed on an inner surface of the wall of the housing, and a radiation excitation source in optical communication with the housing and configured to output radiation to excite the plurality of quantum dots to emit radiation in a desired wavelength range. The quantum dot based radiation source can be used in a calibration system or calibrator, for example to calibrate a detector.

Abstract translation: 在一个实施例中，基于量子点的辐射源包括壳体，其具有在其中限定空腔的壁，设置在壳体的壁的内表面上的多个量子点和与壳体光学连通的辐射激励源， 被配置为输出辐射以激励所述多个量子点以发射所需波长范围内的辐射。 基于量子点的辐射源可用于校准系统或校准器中，例如校准检测器。

公开(公告)号：US07860142B2

公开(公告)日：2010-12-28

申请号：US11349016

申请日：2006-02-07

Applicant: Kalin Spariosu ,  Alexander A. Betin

Inventor： Kalin Spariosu ,  Alexander A. Betin

IPC: H01S3/091

CPC classification number: H01S3/092 ,  B82Y20/00 ,  G02F1/3556 ,  H01S3/067 ,  H01S3/0915

Abstract: A laser with a spectral converter. The novel laser includes a spectral converter adapted to absorb electromagnetic energy in a first frequency band and re-emit energy in a second frequency band, and a laser gain medium adapted to absorb the re-emitted energy and output laser energy. The spectral converter includes a plurality of quantum dots having an emission spectrum matching an absorption spectrum of the gain medium. In an illustrative embodiment, the spectral converter is adapted to convert broadband energy to narrowband energy, and the gain medium is a REI-doped solid-state laser gain medium.

Abstract translation: 具有光谱转换器的激光器。 新颖的激光器包括适于吸收第一频带中的电磁能并且在第二频带中重新发射能量的光谱转换器，以及适于吸收重新发射的能量并输出激光能量的激光增益介质。 光谱转换器包括具有与增益介质的吸收光谱相匹配的发射光谱的多个量子点。 在说明性实施例中，频谱转换器适于将宽带能量转换为窄带能量，并且增益介质是REI掺杂的固态激光增益介质。

公开(公告)号：US07531349B1

公开(公告)日：2009-05-12

申请号：US10756553

申请日：2004-01-13

Applicant: James G. Shepard ,  Kalin Spariosu

Inventor： James G. Shepard ,  Kalin Spariosu

IPC: C12M1/34 ,  C12M3/00 ,  G01N21/64 ,  G01J1/58 ,  A61B6/02

CPC classification number: G01N21/6402 ,  G01N21/274 ,  G01N2021/1795 ,  G01N2021/6421 ,  G01N2201/0221 ,  G01N2201/0627 ,  Y10S435/808

Abstract: A standoff bioagent-detection apparatus and method use a direct ultraviolet source to detect bioagents. In some embodiments, a standoff bioagent-detection apparatus and method use laser-induced fluorescence to determine the presence of a biological agent having an aromatic-protein shell, such as Tryptophan. In some embodiments, multi-wavelength differential laser-induced fluorescence helps reduce false alarm caused by naturally occurring interferants. In some embodiments, a full range of ultraviolet wavelengths is initially simultaneously generated to fluoresce Tryptophan to determine if an ambient level is excessive. When the ambient level is excessive, individual ultraviolet wavelengths may be generated in differential pairs and the detected fluorescence levels may be correlated with atmospheric absorption levels for Tryptophan to determine if a bioagent is highly likely to be present.

Abstract translation: 对立生物检测装置和方法使用直接紫外线源来检测生物代谢物。 在一些实施方案中，间隔生物标记检测装置和方法使用激光诱导荧光来确定具有芳族蛋白质壳的生物试剂（如色氨酸）的存在。 在一些实施例中，多波长差分激光诱导荧光有助于减少由天然存在的干扰物引起的假警报。 在一些实施方案中，最初同时产生全范围的紫外线波长以发出色氨酸，以确定环境水平是否过高。 当环境水平过高时，可能在差分对中产生单独的紫外线波长，并且检测到的荧光水平可能与色氨酸的大气吸收水平相关，以确定生物制剂是否很可能存在。

公开(公告)号：US20090101842A1

公开(公告)日：2009-04-23

申请号：US10756553

申请日：2004-01-13

Applicant: James G. Shepard ,  Kalin Spariosu

Inventor： James G. Shepard ,  Kalin Spariosu

IPC: H05B33/00

CPC classification number: G01N21/6402 ,  G01N21/274 ,  G01N2021/1795 ,  G01N2021/6421 ,  G01N2201/0221 ,  G01N2201/0627 ,  Y10S435/808

Abstract: A standoff bioagent-detection apparatus and method use a direct ultraviolet source to detect bioagents. In some embodiments, a standoff bioagent-detection apparatus and method use laser-induced fluorescence to determine the presence of a biological agent having an aromatic-protein shell, such as Tryptophan. In some embodiments, multi-wavelength differential laser-induced fluorescence helps reduce false alarm caused by naturally occurring interferants. In some embodiments, a full range of ultraviolet wavelengths is initially simultaneously generated to fluoresce Tryptophan to determine if an ambient level is excessive. When the ambient level is excessive, individual ultraviolet wavelengths may be generated in differential pairs and the detected fluorescence levels may be correlated with atmospheric absorption levels for Tryptophan to determine if a bioagent is highly likely to be present.

Abstract translation: 对立生物检测装置和方法使用直接紫外线源来检测生物代谢物。 在一些实施方案中，间隔生物标记检测装置和方法使用激光诱导荧光来确定具有芳族蛋白质壳的生物试剂（如色氨酸）的存在。 在一些实施例中，多波长差分激光诱导荧光有助于减少由天然存在的干扰物引起的假警报。 在一些实施方案中，最初同时产生全范围的紫外线波长以发出色氨酸，以确定环境水平是否过高。 当环境水平过高时，可能在差分对中产生单独的紫外线波长，并且检测到的荧光水平可能与色氨酸的大气吸收水平相关，以确定生物制剂是否很可能存在。

公开(公告)号：US20080212629A1

公开(公告)日：2008-09-04

申请号：US12151551

申请日：2008-05-07

Applicant: Kalin Spariosu

Inventor： Kalin Spariosu

IPC: H01S3/05 ,  H01S3/17

CPC classification number: H01S3/094 ,  H01S3/0078 ,  H01S3/08009 ,  H01S3/094038 ,  H01S3/1608 ,  H01S3/1643 ,  H01S3/2316

Abstract: An ultra-low heat laser that does not rely on florescence cooling. Generally, the inventive laser includes a pump source operable at a pump frequency and a gain medium disposed to receive energy from the source and lase at a frequency close to the pump frequency. In the illustrative embodiment, the laser is a solid state laser having a gain medium which is resonantly pumped to lase at a frequency within 5% of the pump frequency. However, in the best mode and in accordance with the present teachings, the gain medium lases at a frequency within 1% of the pump frequency. In the illustrative embodiment, the laser gain medium ion has a rich Stark energy level structure and the laser active gain medium has oscillator strengths at transitions wavelengths that allow an ultra-low quantum defect operation. The pump source has a wavelength output centered to correspond to a predetermined pump band and an emission band subtended by an absorption bandwidth thereof.

公开(公告)号：US20080043800A1

公开(公告)日：2008-02-21

申请号：US11033585

申请日：2005-01-12

Applicant: Kalin Spariosu ,  Alexander Betin

Inventor： Kalin Spariosu ,  Alexander Betin

IPC: H01S3/091 ,  H01S3/092

CPC classification number: H01S3/0941 ,  F41H13/00 ,  H01S3/0404 ,  H01S3/042 ,  H01S3/0604 ,  H01S3/0608 ,  H01S3/0612 ,  H01S3/0625 ,  H01S3/07 ,  H01S3/094053 ,  H01S3/094057 ,  H01S3/094084 ,  H01S3/102 ,  H01S3/1026 ,  H01S3/1608 ,  H01S3/1643

Abstract: A laser system and method. The inventive laser includes an annular gain medium; a source of pump energy; and an arrangement for concentrating energy from the source on the gain medium. In a more specific implementation, a mechanism is included for rotating the gain medium to effect extraction of pump energy and cooling. In the illustrative embodiment, the pump source is a diode array. Energy from the array is coupled to the medium via an array of optical fibers. The outputs of the fibers are input to a concentrator that directs the pump energy onto a pump region of the medium. In the best mode, plural disks of gain media are arranged in an offset manner to provide a single resonator architecture. First and second mirrors are added to complete the resonator. In accordance with the inventive teachings, a method for pumping and cooling a laser is taught. In the illustrative embodiment, the inventive method includes the steps of providing a gain medium; pumping energy into a region of the gain medium; moving the medium; extracting energy from the region of the medium; and cooling region of the medium.

Abstract translation: 激光系统和方法。 本发明的激光器包括环形增益介质; 泵能源; 以及用于将来自源的能量集中在增益介质上的布置。 在更具体的实施方案中，包括用于旋转增益介质以实现泵能量和冷却的提取的机制。 在说明性实施例中，泵浦源是二极管阵列。 来自阵列的能量通过光纤阵列耦合到介质。 纤维的输出被输入到将泵浦能量引导到介质的泵区域上的浓缩器。 在最佳模式中，增益介质的多个磁盘以偏移方式排列以提供单个谐振器结构。 添加第一和第二反射镜以完成谐振器。 根据本发明的教导，教导了用于泵送和冷却激光器的方法。 在说明性实施例中，本发明的方法包括提供增益介质的步骤; 将能量泵入增益介质的区域; 移动媒体; 从介质区域提取能量; 和介质的冷却区域。

公开(公告)号：US20070242713A1

公开(公告)日：2007-10-18

申请号：US11403090

申请日：2006-04-12

Applicant: Kalin Spariosu ,  Alexander Betin ,  Michael LoCascio ,  Wei Liu

Inventor： Kalin Spariosu ,  Alexander Betin ,  Michael LoCascio ,  Wei Liu

IPC: H01S3/14

CPC classification number: H01S3/0915 ,  H01S3/0604 ,  H01S3/0612 ,  H01S3/0627 ,  H01S3/07 ,  H01S3/092 ,  H01S3/09403 ,  H01S3/102 ,  H01S3/1026 ,  H01S3/1608 ,  H01S3/1618 ,  H01S3/169 ,  H01S3/1691 ,  H01S3/17 ,  H01S3/178

Abstract: A laser gain medium. The novel laser gain medium includes a host material, a plurality of quantum dots dispersed throughout the host material, and a plurality of laser active ions surrounding each of the quantum dots. The laser active ions are disposed in close proximity to the quantum dots such that energy absorbed by the quantum dots is non-radiatively transferred to the ions via a Forster resonant energy transfer, thereby exciting the ions to produce laser output. In an illustrative embodiment, each quantum dot is surrounded by an external shell doped with the laser active ions.

Abstract translation: 激光增益介质。 新型激光增益介质包括主体材料，分散在整个主体材料中的多个量子点以及围绕每个量子点的多个激光活性离子。 激光有源离子靠近量子点设置，使得被量子点吸收的能量经由福斯特共振能量转移被非辐射转移到离子上，由此激发离子以产生激光输出。 在说明性实施例中，每个量子点被掺杂有激光活性离子的外壳包围。

公开(公告)号：US08213473B2

公开(公告)日：2012-07-03

申请号：US13044672

申请日：2011-03-10

Applicant: Kalin Spariosu ,  Alexander A. Betin

Inventor： Kalin Spariosu ,  Alexander A. Betin

IPC: H01S3/16

CPC classification number: H01S3/0915 ,  H01S3/0604 ,  H01S3/0612 ,  H01S3/0627 ,  H01S3/07 ,  H01S3/092 ,  H01S3/09403 ,  H01S3/102 ,  H01S3/1026 ,  H01S3/1608 ,  H01S3/1618 ,  H01S3/169 ,  H01S3/1691 ,  H01S3/17 ,  H01S3/178

Abstract: A laser gain medium and laser system include a host material, a plurality of quantum dots dispersed throughout the host material, and a plurality of laser active ions surrounding each of the quantum dots. The laser active ions are disposed in close proximity to the quantum dots such that energy absorbed by the quantum dots is transferred to the ions, thereby exciting the ions to produce laser output. In an illustrative embodiment, each quantum dot is surrounded by an external shell doped with the laser active ions.

Abstract translation: 激光增益介质和激光系统包括主体材料，分散在整个主体材料中的多个量子点和围绕每个量子点的多个激光活性离子。 激光活性离子设置在量子点附近，使得被量子点吸收的能量转移到离子中，从而激发离子以产生激光输出。 在说明性实施例中，每个量子点被掺杂有激光活性离子的外壳包围。