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1. 发明专利

JPH022196A CHROME-DOPED FORSTERITE SINGLE CRYSTAL LASER 失效
公开(公告)号：JPH022196A
公开(公告)日：1990-01-08
申请号：JP30767188
申请日：1988-12-05
申请人： ALFANO ROBERT R , PETRICEVIC VLADIMIR , GAYEN SWAPAN
发明人： ALFANO ROBERT R
IPC分类号： H01S3/094 , H01S3/098 , H01S3/109 , H01S3/16
摘要： PURPOSE: To execute tuning for a wide range and to generate a short pulse having the continuation time of the order of pico second and femto second by exciting a laser medium constituted of a forsterite single crystal where tervalent chrome ions are doped and maintaining discharged coherent radiation. CONSTITUTION: The laser medium 13 is constituted of the single crystal of forsterite (Cr:Mg2 SiO4 ) and the dope quantity of chrome is set to be the range of about 0.01-0.5 atom%. The crystal is generated in a long bar. A pumping source 15 can be the appropriate pumping light source of in-coherent or coherent wave, a continuous wave or a pulse wave, which excites the laser medium 13. End mirrors 17 and 19 have coating designed to show a maximum reflection factor along the bandwidth of about 1150-1350Å. The bandwidth of 1150-1350Å covers a frequency range where coherent light is generated. The end mirrors 17 and 19 are detached by appropriate distance suitable for forming optical resonance cavity, and the bar 13 is arranged along the focus of the end mirror. The output radiation of a laser device 11 is radiated from the end mirror 19.

2. 发明授权

EP0319332B1 Chromium-doped forsterite laser system 失效
标题翻译：铬掺杂的镁橄榄石激光系统。
公开(公告)号：EP0319332B1
公开(公告)日：1994-03-30
申请号：EP88311470.4
申请日：1988-12-02
申请人： Alfano, Robert R. , Petricevic, Vladimir , Gayen, Swapan K.
发明人： Alfano, Robert R. , Petricevic, Vladimir , Gayen, Swapan K.
IPC分类号： H01S3/16
CPC分类号： H01S3/16 , H01S3/1623 , H01S3/1658

3. 发明申请

WO2006062992A3 TETRAVALENT CHROMIUM DOPED LASER MATERIALS AND NIR TUNABLE LASERS 审中-公开
公开(公告)号：WO2006062992A3
公开(公告)日：2006-06-15
申请号：PCT/US2005/044154
申请日：2005-12-07
申请人： RESEARCH FOUNDATION OF THE CITY UNIVERSITY OF NEW YORK , ALFANO, Robert, R. , PETRICEVIC, Vladimir , BYKOV, Alexey
发明人： ALFANO, Robert, R. , PETRICEVIC, Vladimir , BYKOV, Alexey
IPC分类号： H01S3/223
摘要： A method is described to improve and produce purer Cr 4+ -doped laser materials and lasers with reduced co-incorporation of chromium in any other valence states, such as Cr 3+ , Cr 2+ , Cr 5+ , and Cr 6+ . The method includes: 1) certain crystals of olivine structure with large cation (Ca) in octahedral sites such as Cr 4+ :Ca 2 GeO 4 , Cr 4+ :Ca 2 SiO 4 , Cr 4+ :Ca 2 Ge x Si 1-x O 4 (where 0 4+ -doped laser materials are characterized by a relatively high concentration of Cr 4+ - lasing ion in crystalline host that makes these materials suitable for compact high power (thin disk/wedge) NIR laser applications.

4. 发明申请

WO2002086554A3 DYNAMIC RANGE AND REDUNDANT PUMP WAVELENGHT COMBINING FOR RAMAN OPTICAL AMPLIFIER 审中-公开
公开(公告)号：WO2002086554A3
公开(公告)日：2002-10-31
申请号：PCT/US2002/012421
申请日：2002-04-19
申请人： DORSAL NETWORKS, INC. , PEDERSEN, Bo , SHIEH, William , PETRICEVIC, Vladimir , CLARK, Thomas
发明人： PEDERSEN, Bo , SHIEH, William , PETRICEVIC, Vladimir , CLARK, Thomas
IPC分类号： H01S3/091
摘要： An optical amplifier (114) having redundancy and a dynamic range of pump power is provided. The amplifier contains a plurality of optical pump sources (115) adapted to emit a plurality of pumps. The amplifier also contains a PxV coupler (120) containing P inputs and V outputs, adapted to receive the pumps and to output V pump profiles, where P and V are positive integers > 1. The pump profiles include a first set of pumps (115-1…115-T) having a first set of wavelengths and a first power and a second set of pumps (115-T+1…115-N) having a second set of wavelengths different from the first set and a second power different from the first power. The amplifier optionally contains at least one spare optical pump source, adapted to be turned off during operation of the amplifier unless at least one of the plurality of optical pump sources becomes non operational during the operation of the amplifier.

5. 发明公开

EP0319332A3 Chromium-doped forsterite laser system 失效
标题翻译：铬酸钙激光系统
公开(公告)号：EP0319332A3
公开(公告)日：1990-01-03
申请号：EP88311470.4
申请日：1988-12-02
申请人： Alfano, Robert R. , Petricevic, Vladimir , Gayen, Swapan K.
发明人： Alfano, Robert R. , Petricevic, Vladimir , Gayen, Swapan K.
IPC分类号： H01S3/16
CPC分类号： H01S3/16 , H01S3/1623 , H01S3/1658
摘要： A layer system in which the laser medium is a single crystal of Cr³⁺:Mg₂Si0₄ is disclosed. In one embodiment, the system comprises a single crystal of chromium doped forsterite and a cavity which includes a pair of 30 cm radius mirror having high transmission at 532 nm (the pump wavelength) and high reflectivity in the 1150-1350 nm range. Room temperature vibronic pulsed laser action is obtained with this cavity. Laser action has been observed at 1215 nm and a bandwidth of 20 nm and 1235 nm at a bandwidth of 20 nm. The wavelength range is suitable for transmission through optical fibers and is useful in laser ranging and remote sensing. Because of the ultrawide fluorescence bandwidth and a 15 fluroescence lifetime the system is suitable for high intensity, tunable, cw, Q switched mode locked operation. In the mode locked operation pulses as short as 10-500 femtosecond may be generated. A number of different embodiments of the invention are described.

6. 发明公开

EP0319332A2 Chromium-doped forsterite laser system 失效
标题翻译： Chrom-dotiertes Forsterit-Lasersystem。
公开(公告)号：EP0319332A2
公开(公告)日：1989-06-07
申请号：EP88311470.4
申请日：1988-12-02
申请人： Alfano, Robert R. , Petricevic, Vladimir , Gayen, Swapan K.
发明人： Alfano, Robert R. , Petricevic, Vladimir , Gayen, Swapan K.
IPC分类号： H01S3/16
CPC分类号： H01S3/16 , H01S3/1623 , H01S3/1658
摘要： A layer system in which the laser medium is a single crystal of Cr³⁺:Mg₂Si0₄ is disclosed. In one embodiment, the system comprises a single crystal of chromium doped forsterite and a cavity which includes a pair of 30 cm radius mirror having high transmission at 532 nm (the pump wavelength) and high reflectivity in the 1150-1350 nm range. Room temperature vibronic pulsed laser action is obtained with this cavity. Laser action has been observed at 1215 nm and a bandwidth of 20 nm and 1235 nm at a bandwidth of 20 nm. The wavelength range is suitable for transmission through optical fibers and is useful in laser ranging and remote sensing. Because of the ultrawide fluorescence bandwidth and a 15 fluroescence lifetime the system is suitable for high intensity, tunable, cw, Q switched mode locked operation. In the mode locked operation pulses as short as 10-500 femtosecond may be generated. A number of different embodiments of the invention are described.
摘要翻译：公开了一种层状体系，其中激光介质是Cr 3+的单晶：Mg 2 SiO 4。在一个实施例中，该系统包括铬掺杂的镁橄榄石的单晶和包括在532nm（泵浦波长）下具有高透射率的一对30cm半径反射镜和在1150-1350nm范围内的高反射率的空腔。使用该腔体获得室温振动脉冲激光作用。已经在1215nm处观察到激光作用，并且在20nm的带宽下观察到20nm和1235nm的带宽。波长范围适用于通过光纤传输，适用于激光测距和遥感。由于超宽荧光带宽和15个荧光寿命，系统适用于高强度，可调谐，cw，Q切换模式锁定操作。在模式锁定操作中，可能产生短至10-500飞秒的脉冲。描述了本发明的多个不同实施例。

7. 发明申请

WO2006081303A3 CR4+-DOPED MIXED ALLOY LASER MATERIALS AND LASERS AND METHODS USING THE MATERIALS 审中-公开
公开(公告)号：WO2006081303A3
公开(公告)日：2006-08-03
申请号：PCT/US2006/002664
申请日：2006-01-25
申请人： RESEARCH FOUNDATION OF THE CITY UNIVERSITY OF NEW YORK , ALFANO, Robert, R. , PETRICEVIC, Vladimir , BYKOV, Alexey
发明人： ALFANO, Robert, R. , PETRICEVIC, Vladimir , BYKOV, Alexey
IPC分类号： H01S3/14
摘要： A laser medium includes a single crystal of Cr 4 +:Mg 2-x M x Si 1-y A y 0 4 , where, where M is a tetravalent ion having an ionic radius larger than Mg 2+ , and A is a divalent ion having an ionic radius larger than Si 4+ . In addition, either a) 0≤x 2+ and x=l then y is not O. The laser medium can be used in a laser device, such as a tunable near infrared (NIR) laser.

8. 发明申请

WO2006081303A2 CR4+-DOPED MIXED ALLOY LASER MATERIALS AND LASERS AND METHODS USING THE MATERIALS 审中-公开
标题翻译： CR4 +掺杂合金激光材料和激光和使用材料的方法
公开(公告)号：WO2006081303A2
公开(公告)日：2006-08-03
申请号：PCT/US2006002664
申请日：2006-01-25
申请人： UNIV CITY , ALFANO ROBERT R , PETRICEVIC VLADIMIR , BYKOV ALEXEY
发明人： ALFANO ROBERT R , PETRICEVIC VLADIMIR , BYKOV ALEXEY
IPC分类号： H01L33/00
CPC分类号： H01S3/0627 , C30B19/02 , C30B29/34 , H01S3/0405 , H01S3/0604 , H01S3/063 , H01S3/09415 , H01S3/1623 , H01S3/1655 , H01S3/1658 , H01S3/1675
摘要： A laser medium includes a single crystal of Cr 4 +:Mg 2-x M x Si 1-y A y 0 4 , where, where M is a tetravalent ion having an ionic radius larger than Mg 2+ , and A is a divalent ion having an ionic radius larger than Si 4+ . In addition, either a) 0=x 2+ and x=l then y is not O. The laser medium can be used in a laser device, such as a tunable near infrared (NIR) laser.
摘要翻译：激光介质包括Cr 4+：Mg 2-x M x Si 1-y x的单晶，其中，M是离子半径大于Mg 2 +的四价离子，A是二价离子具有大于Si 4+的离子半径。另外，a）0 = x <2和0

9. 发明申请

WO2006062992A2 TETRAVALENT CHROMIUM DOPED LASER MATERIALS AND NIR TUNABLE LASERS 审中-公开
标题翻译：四氯化铬激光材料和近红外激光
公开(公告)号：WO2006062992A2
公开(公告)日：2006-06-15
申请号：PCT/US2005044154
申请日：2005-12-07
申请人： UNIV CITY , ALFANO ROBERT R , PETRICEVIC VLADIMIR , BYKOV ALEXEY
发明人： ALFANO ROBERT R , PETRICEVIC VLADIMIR , BYKOV ALEXEY
IPC分类号： H01S3/16
CPC分类号： C30B29/34 , C30B19/00 , C30B19/02 , C30B29/32 , H01S3/0405 , H01S3/042 , H01S3/0604 , H01S3/09415 , H01S3/1118 , H01S3/16 , H01S3/1623 , H01S3/1655 , H01S3/1675
摘要： A method is described to improve and produce purer Cr 4+ -doped laser materials and lasers with reduced co-incorporation of chromium in any other valence states, such as Cr 3+ , Cr 2+ , Cr 5+ , and Cr 6+ . The method includes: 1) certain crystals of olivine structure with large cation (Ca) in octahedral sites such as Cr 4+ :Ca 2 GeO 4 , Cr 4+ :Ca 2 SiO 4 , Cr 4+ :Ca 2 Ge x Si 1-x O 4 (where 0 4+ -doped laser materials are characterized by a relatively high concentration of Cr 4+ - lasing ion in crystalline host that makes these materials suitable for compact high power (thin disk/wedge) NIR laser applications.
摘要翻译：描述了一种方法来改善和产生更纯的掺杂4+的激光材料和具有减少的以任何其它价态的铬共掺入的激光器，例如Cr 3+ ，Cr 2+ +，Cr 5+和Cr 6+。该方法包括：1）在八面体位点如Cr 4+中的一些具有大阳离子（Ca）的橄榄石结构的某些晶体：Ca 2+ GeO 4 ，Cr 4+：Ca 2 SiO 4，Cr 4+：Ca 2+，（其中0

10. 发明申请

WO2003038952A1 BALANCED COUPLER FOR RADIATION SOURCES 审中-公开
标题翻译：用于辐射源的平衡耦合器
公开(公告)号：WO2003038952A1
公开(公告)日：2003-05-08
申请号：PCT/US2002/031448
申请日：2002-10-03
申请人： DORSAL NETWORKS, INC. , SHIEH, William , CLARK, Thomas, R., Jr. , PETRICEVIC, Vladimir
发明人： SHIEH, William , CLARK, Thomas, R., Jr. , PETRICEVIC, Vladimir
IPC分类号： H01S3/00
CPC分类号： G02B6/2808 , G02B6/2804 , G02B6/2861
摘要： The optical coupler system is for coupling radiation from a plurality of radiation sources. The optical coupler system comprises a first optical coupler having at least a first and a second input and a first and a second output. The optical coupler also comprises a second optical coupler having at least a first and a second input and a first and a second output, wherein the first and second outputs of the first optical coupler are connected to the first and second inputs, respectively, of the second optical coupler via first and second optical links, and wherein the first and second links provide different optical paths between the first and second optical couplers such that portions of radiation energy that is input to the first input of the first optical coupler are combined incoherently at the first output of said second optical coupler.
摘要翻译：光耦合器系统用于耦合来自多个辐射源的辐射。光耦合器系统包括具有至少第一和第二输入以及第一和第二输出的第一光耦合器。光耦合器还包括具有至少第一和第二输入以及第一和第二输出的第二光耦合器，其中第一光耦合器的第一和第二输出分别连接到第一和第二输入端第二光耦合器，并且其中第一和第二链路在第一和第二光耦合器之间提供不同的光路，使得输入到第一光耦合器的第一输入的辐射能量的一部分不相干地组合在所述第二光耦合器的第一输出。

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