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公开(公告)号：US11322905B2
公开(公告)日：2022-05-03
申请号：US16475747
申请日：2017-12-22
Applicant: Macquarie University
Inventor： David James Spence , Ondrej Kitzler , Jipeng Lin , Richard Paul Mildren , Helen M. Pask , Graeme P. A. Malcolm , Nils Hempler , Stephen Webster
Abstract: A single longitudinal mode ring Raman laser including: a pump source outputting a pump light power, resonantly coupled to a first ring resonator; a optical measurement and piezo-actuator for stabilising the resonant coupling of the pump light power to a first ring resonator; a first ring resonator including a Raman gain medium, wherein the Raman gain medium receives the pump light power and undergoes Raman lasing generating resonated Stokes power at the corresponding Stokes output wavelength; the first ring resonator acting as a feedback loop for the pump light power and the resonated Stokes power and outputting a portion of the Stokes power as the laser output.
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公开(公告)号：US20180323572A1
公开(公告)日：2018-11-08
申请号：US15775955
申请日：2016-11-18
Applicant: MACQUARIE UNIVERSITY
Inventor： Richard Paul Mildren , Aaron McKay , David James Spence , David Coutts
CPC classification number: H01S3/30 , H01S3/042 , H01S3/0623 , H01S3/0915 , H01S3/094076 , H01S3/094096 , H01S3/10007 , H01S3/10092 , H01S3/105 , H01S3/1305 , H01S3/163 , H01S3/2308
Abstract: A Raman laser device including: a Raman lasing medium adapted to undergo Raman lasing; and at least one pumping beam, for pumping a Stokes seed beam by stimulated Raman scattering whilst it traverses the Raman lasing medium.
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公开(公告)号：US09837787B2
公开(公告)日：2017-12-05
申请号：US15039196
申请日：2014-11-27
Applicant: Macquarie University
Inventor： David James Spence , David Coutts , Richard Paul Mildren , Helen Margaret Pask , Jipeng Lin , Aravindan Warrier
CPC classification number: H01S3/30 , H01S3/0816 , H01S3/083 , H01S3/094026 , H01S3/1086
Abstract: A method and system for generating a Raman second Stokes light to a source light comprising generating a Raman first Stokes light from the source light by a Raman interaction in a nonlinear optical medium disposed in an optical resonator, and resonating the Raman first Stokes light in the optical resonator; generating a seed light at the frequency of the Raman second Stokes light from the source light and the Raman first Stokes light by a four wave mixing process which is not phase matched in the nonlinear medium; amplifying the seed light by transferring power from the first Stokes light resonating in the optical resonator to the seed light using a Raman amplification process in the nonlinear medium; and extracting from the optical resonator a majority of the power of the seed light so amplified.
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公开(公告)号：US10944232B2
公开(公告)日：2021-03-09
申请号：US16495598
申请日：2018-03-23
Applicant: Macquarie University
Inventor： Andrew Lee , Helen M. Pask , David James Spence
Abstract: A frequency electromagnetic radiation generation system including: a non linear crystal producing THz frequency electromagnetic radiation; a fundamental beam that interacts with the non linear crystal thereby emitting a THz frequency electromagnetic radiation emission; a silicon intermediary coupled to the non linear crystal for output channeling the THz frequency electromagnetic radiation emission to an output environment; the system utilising a fundamental beam which has a photon energy below the bandgap energy of silicon.
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Patent Agency Ranking
公开(公告)号：US20150325976A1
公开(公告)日：2015-11-12
申请号：US14412402
申请日：2013-07-05
Applicant: Macquarie University
Inventor： David James Spence , Helen Margaret Pask , Andrew Lee
CPC classification number: H01S3/30 , H01S3/08059 , H01S3/09415 , H01S3/1086 , H01S3/109 , H01S3/1611 , H01S3/1671
Abstract: A laser configured to optimise output power at a desired wavelength, by suppression of unwanted Stokes orders in a Raman cascade, the laser comprising a resonating structure configured to resonate precursor light and Raman light frequencies, having a Raman medium configured to interact with the precursor resonating light to generate the Raman light; a control nonlinear medium configured to reduce an extraction of power from the precursor resonating light by the Raman process; and an output nonlinear medium configured to interact with the precursor resonating light to generate a desired output light thereby extracting power from the precursor resonating light; whereby the control nonlinear medium reduces the extraction of power from the precursor resonating light by the Raman process to enhance the extraction of power from the precursor resonating light by the output nonlinear medium interacting with the precursor resonating light thereby increasing the power of desired output the light.
Abstract translation: 激光器，被配置为通过抑制拉曼级联中的不期望的斯托克斯次数来优化在期望波长处的输出功率，所述激光器包括被配置为共振前驱光和拉曼光频率的谐振结构，所述谐振结构被配置为与前体谐振相互作用 光产生拉曼光; 控制非线性介质，被配置为通过拉曼过程减少从所述前体谐振光的功率的提取; 以及输出非线性介质，其被配置为与前体谐振光相互作用以产生期望的输出光，从而从前体谐振光提取功率; 由此，控制非线性介质通过拉曼过程减少来自前体谐振光的功率的提取，以通过与前驱体谐振光相互作用的输出非线性介质增强从前体谐振光的功率提取，从而增加所需输出光的功率 。
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公开(公告)号：US20140269787A1
公开(公告)日：2014-09-18
申请号：US14355734
申请日：2012-11-09
Applicant: Macquarie University
Inventor： Jipeng Lin , Helen M. Pask , David James Spence , Craig J. Hamilton , Graeme P. Malcolm
CPC classification number: H01S5/0604 , H01S3/08027 , H01S3/082 , H01S3/1086 , H01S3/109 , H01S3/30 , H01S5/041 , H01S5/141 , H01S5/142 , H01S5/183
Abstract: A tunable lasing device including a vertical external cavity surface emitting laser, adapted to generate a fundamental laser beam in response to pumping from a pump source, said fundamental laser beam having a fundamental wavelength and a fundamental linewidth; a fundamental resonator cavity adapted to resonate the fundamental beam therein; a first optical element located within the fundamental resonator cavity for control of the fundamental linewidth of the fundamental beam; a Raman resonator located at least partially in said fundamental resonator adapted to receive the fundamental beam and comprising therein, a solid state Raman active medium located therein for generating at least a first Stokes beam from the fundamental beam wherein said Raman resonator cavity is adapted to resonate said Stokes beam therein and further adapted to emit an output beam; and further comprising a nonlinear medium located within the Raman resonator cavity for nonlinear frequency conversion of at least one of the beams present in the fundamental or the Raman resonator cavity; said tunable lasing device further comprising an output coupler adapted to emit an output beam, said output beam comprising at least a portion of said frequency converted beam being derived from at least one of the resonating beams in said fundamental or said Raman resonator cavities.
Abstract translation: 一种可调谐激光装置，包括垂直外腔表面发射激光器，适于响应于泵浦源的泵浦产生基本激光束，所述基本激光束具有基本波长和基本线宽; 基本谐振腔，其适于在其中谐振基波束; 位于基本谐振腔内的第一光学元件，用于控制基波束的基线宽度; 至少部分地位于所述基本谐振器中的拉曼谐振器，其适于接收基波束并且在其中包括位于其中的固态拉曼有源介质，用于从基波束产生至少第一斯托克斯波束，其中所述拉曼谐振腔适于谐振 所述斯托克斯光束在其中并进一步适于发射输出光束; 并且还包括位于拉曼谐振腔内的非线性介质，用于对存在于基波或拉曼谐振腔中的至少一个波束进行非线性频率转换; 所述可调谐激光装置还包括适于发射输出光束的输出耦合器，所述输出光束包括所述频率转换光束的至少一部分从所述基波或所述拉曼谐振腔中的至少一个谐振光束导出。
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公开(公告)号：US20210075182A1
公开(公告)日：2021-03-11
申请号：US16475747
申请日：2017-12-22
Applicant: Macquarie University
Inventor： David James Spence , Ondrej Kitzler , Jipeng Lin , Richard Paul Mildren , Helen M. Pask , Graeme P. A. Malcolm , Nils Hempler , Stephen Webster
Abstract: A single longitudinal mode ring Raman laser including: a pump source outputting a pump light power, resonantly coupled to a first ring resonator; a optical measurement and piezo-actuator for stabilising the resonant coupling of the pump light power to a first ring resonator; a first ring resonator including a Raman gain medium, wherein the Raman gain medium receives the pump light power and undergoes Raman lasing generating resonated Stokes power at the corresponding Stokes output wavelength; the first ring resonator acting as a feedback loop for the pump light power and the resonated Stokes power and outputting a portion of the Stokes power as the laser output.
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公开(公告)号：US20190280456A1
公开(公告)日：2019-09-12
申请号：US16334939
申请日：2017-09-21
Applicant: Macquarie University
Inventor： Robert Williams , Richard Paul Mildren , David James Spence , Oliver Lux
IPC: H01S3/30 , H01S3/08 , H01S3/0941 , H01S3/16
Abstract: A Raman Laser device having an nth Stokes shifted output the device including: a laser pump input; a lasing cavity having feedback elements at each end; and a diamond Raman active gain medium within the cavity, exhibiting first and higher Stokes emissions when subjected to pumping by the laser pump input; wherein the feedback elements feeding back the pump input, and 1st Stokes output from the gain medium, and a gain portion of the higher Stokes outputs, with a transmitting portion of the nth Stokes output being the output of the device.
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公开(公告)号：US09941660B2
公开(公告)日：2018-04-10
申请号：US14355734
申请日：2012-11-09
Applicant: Macquarie University
Inventor： Jipeng Lin , Helen M. Pask , David James Spence , Craig J. Hamilton , Graeme P. A. Malcolm
IPC: H01S3/108 , H01S3/30 , H01S5/06 , H01S5/183 , H01S3/109 , H01S5/14 , H01S3/08 , H01S3/082 , H01S5/04
CPC classification number: H01S5/0604 , H01S3/08027 , H01S3/082 , H01S3/1086 , H01S3/109 , H01S3/30 , H01S5/041 , H01S5/141 , H01S5/142 , H01S5/183
Abstract: A tunable lasing device including a vertical external cavity surface emitting laser, adapted to generate a fundamental laser beam in response to pumping from a pump source, said fundamental laser beam having a fundamental wavelength and a fundamental linewidth; a fundamental resonator cavity adapted to resonate the fundamental beam therein; a first optical element located within the fundamental resonator cavity for control of the fundamental linewidth of the fundamental beam; a Raman resonator located at least partially in said fundamental resonator adapted to receive the fundamental beam and comprising therein, a solid state Raman active medium located therein for generating at least a first Stokes beam from the fundamental beam wherein said Raman resonator cavity is adapted to resonate said Stokes beam therein and further adapted to emit an output beam; and further comprising a nonlinear medium located within the Raman resonator cavity for nonlinear frequency conversion of at least one of the beams present in the fundamental or the Raman resonator cavity; said tunable lasing device further comprising an output coupler adapted to emit an output beam, said output beam comprising at least a portion of said frequency converted beam being derived from at least one of the resonating beams in said fundamental or said Raman resonator cavities.
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