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公开(公告)号：US20160099538A1
公开(公告)日：2016-04-07
申请号：US14870929
申请日：2015-09-30
Inventor： Benjamin R. Johnson , Daniel J. Creeden
CPC classification number: H01S3/094003 , H01S3/0675 , H01S3/06754 , H01S3/06758 , H01S3/094015 , H01S3/1616
Abstract: A laser system and method of use are provided in which the laser system may include a fiber laser oscillator and rare earth doped piece of optical fiber which may absorb unused pump light which is unabsorbed in the oscillator.
Abstract translation: 提供了一种激光系统和使用方法，其中激光系统可以包括光纤激光振荡器和稀土掺杂的光纤片，其可以吸收在振荡器中未被吸收的未使用的泵浦光。
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公开(公告)号：US09620924B1
公开(公告)日：2017-04-11
申请号：US15016626
申请日：2016-02-05
Inventor： Daniel J. Creeden , Julia R. Limongelli , Hermanus S. Pretorius , Scott D. Setzler
IPC: H01S3/067 , H01S3/094 , H01S3/16 , H01S3/0941
CPC classification number: H01S3/06754 , H01S3/094003 , H01S3/09403 , H01S3/09415 , H01S3/1608 , H01S3/1618
Abstract: The system and method for reducing Yb to Er bottlenecking in a single frequency Er:Yb-doped fiber laser amplifier. The system is pumped off peak at about 935-955 nm. The off-peak pumping reduces bottlenecking and increases the optical and slope efficiency of the system by about 10% as compared to an EYDFA system pumped on-peak.
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公开(公告)号：US09360625B2
公开(公告)日：2016-06-07
申请号：US14534301
申请日：2014-11-06
Inventor： Daniel J. Creeden
CPC classification number: G02B6/262 , G02B6/02 , G02B6/29368 , H01S3/005 , H01S3/06708 , H01S3/06733 , H01S3/06754 , H01S3/094007 , H01S3/094015
Abstract: Techniques are disclosed for improving pump absorption and efficiency for fiber lasers and amplifiers, for instance. In some embodiments, the techniques are implemented by applying a partially reflective coating on a fiber end-face to double-pass any unabsorbed or otherwise excess pump light in the cladding of a fiber. While being reflective to pump wavelengths, the coating can be non-reflective at the lasing wavelength, so as to avoid unwanted feedback into the system. The benefits of this approach include that excess pump power can be effectively utilized to add more power to the laser output. In addition, the double-pass technique allows for the use of a shorter fiber length, which in turn allows for more compact system designs, saves on material costs, and facilitates manufacturability.
Abstract translation: 公开了用于提高光纤激光器和放大器的泵吸收和效率的技术。 在一些实施例中，这些技术通过在纤维端面上施加部分反射涂层以使在纤维包层中的任何未吸收或过剩的泵浦光双重通过来实现。 在反射泵浦波长的同时，涂层可以在激光波长处不反射，以避免不必要的反馈到系统中。 这种方法的优点包括可以有效地利用多余的泵功率来为激光输出增加更多的功率。 此外，双程技术允许使用较短的光纤长度，这又允许更紧凑的系统设计，节省材料成本，并且有利于可制造性。
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4.发明申请Multimode Optical Amplifier As A Receiver Pre-Amplifier For Free-Space Optical Communications 审中-公开作为用于自由空间光通信的接收机前置放大器的多模光放大器公开(公告)号：US20140347720A1
公开(公告)日：2014-11-27
申请号：US14455314
申请日：2014-08-08
Inventor： Robert T. Carlson , Daniel J. Creeden
CPC classification number: H01S3/06754 , H01S3/094003 , H01S3/10015 , H01S3/1312 , H04B10/11 , H04B10/112 , H04B10/503
Abstract: In the method for processing a signal light from free-space by amplifying said signal for free-space optical communications. wherein the improvement includes the steps of (a) pre-amplifying said signal light with low noise; and (b) coupling said signal light into a multimode filter which reduces coupling hisses compared to single mode filters.
Abstract translation: 在用于通过放大用于自由空间光通信的信号来处理来自空间的信号光的方法中。 其中所述改进包括以下步骤：（a）以低噪声预放大所述信号光; 和（b）将所述信号光耦合到多模式滤波器中，其与单模滤波器相比减少耦合嘶嘶声。
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公开(公告)号：US20130322470A1
公开(公告)日：2013-12-05
申请号：US13827426
申请日：2013-03-14
Inventor： Daniel J. Creeden , Benjamin R. Johnson
IPC: H01S3/067
CPC classification number: H01S3/0675 , H01S3/06754 , H01S3/094003 , H01S3/094007 , H01S3/094011 , H01S3/094042 , H01S3/1616
Abstract: In the method of generating high power light with high efficiency and low thermal loading, the improvement comprising the steps of resonantly pumping a first thulium-doped fiber laser with a second thulium-doped fiber last, said second thulium-doped fiber laser having a shorter wavelength than said first thulium-doped fiber laser.
Abstract translation: 在产生高效率，低热负荷的高功率光的方法中，其改进包括以下步骤：最后将掺有第二ium掺杂光纤的第一ium掺杂光纤激光器共振地泵浦，所述第二ium掺杂光纤激光器具有较短的 波长比所述第一ium掺杂光纤激光器。
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Patent Agency Ranking
公开(公告)号：US20180151998A1
公开(公告)日：2018-05-31
申请号：US15825859
申请日：2017-11-29
Inventor： Benjamin R. Johnson , Daniel J. Creeden
CPC classification number: H01S3/06745 , G02B6/2821 , H01S3/06758 , H01S3/094042 , H01S3/094053 , H01S3/161 , H01S3/1616 , H01S5/106 , H01S5/3215 , H01S5/4012
Abstract: A fiber optic cable including a first end and a second end, a core adapted to receive and transmit an optical signal and a cladding layer surrounding the core is disclosed. The fiber optic cable may include a ratio of an outside diameter of the cladding layer to a diameter of the core that decreases from the first end to the second end while the diameter of the core remains substantially uniform. The fiber optic cable may include a first portion of the cladding layer and a second portion of the cladding layer. A uniform outside diameter of the second portion may be less than a uniform outside diameter of the first portion. The fiber optic cable may further include a third portion of the cladding layer. A uniform outside diameter of the third portion may be less than a uniform outside diameter of the second portion.
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公开(公告)号：US09667021B2
公开(公告)日：2017-05-30
申请号：US14876085
申请日：2015-10-06
Inventor： Daniel J. Creeden , Peter A. Ketteridge , Paul R. Moffitt , Katherine J. Snell
CPC classification number: H01S3/0092 , H01S3/06716 , H01S3/06741 , H01S3/06754 , H01S3/094007 , H01S3/1611 , H01S3/1618
Abstract: In the method for generating blue laser light with high optical and electrical efficiency, wherein the improvement comprises the step of using a phosphate glass photonic crystal fiber rod as a gain medium.
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公开(公告)号：US09634458B2
公开(公告)日：2017-04-25
申请号：US14870929
申请日：2015-09-30
Inventor： Benjamin R. Johnson , Daniel J. Creeden
CPC classification number: H01S3/094003 , H01S3/0675 , H01S3/06754 , H01S3/06758 , H01S3/094015 , H01S3/1616
Abstract: A laser system and method of use are provided in which the laser system may include a fiber laser oscillator and rare earth doped piece of optical fiber which may absorb unused pump light which is unabsorbed in the oscillator.
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公开(公告)号：US09627838B2
公开(公告)日：2017-04-18
申请号：US13827426
申请日：2013-03-14
Inventor： Daniel J. Creeden , Benjamin R. Johnson
CPC classification number: H01S3/0675 , H01S3/06754 , H01S3/094003 , H01S3/094007 , H01S3/094011 , H01S3/094042 , H01S3/1616
Abstract: In the method of generating high power light with high efficiency and low thermal loading, the improvement comprising the steps of resonantly pumping a first thulium-doped fiber laser with a second thulium-doped fiber last, said second thulium-doped fiber laser having a shorter wavelength than said first thulium-doped fiber laser.
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公开(公告)号：US20160268762A1
公开(公告)日：2016-09-15
申请号：US14649587
申请日：2014-10-02
Inventor： Benjamin R. Johnson , Daniel J. Creeden
IPC: H01S3/0941 , H01S3/067 , H01S3/094
CPC classification number: H01S3/09415 , H01S3/06733 , H01S3/0675 , H01S3/094003 , H01S3/094007
Abstract: A system and method for increasing the fiber coupling efficiency of diode lasers is disclosed. The diode laser has a diode pump source for generating a force to pump a laser and a double clad fiber directly coupled to the diode pump source instead of coupling to the multimode fiber. The pumped laser is transmitted directly through the double clad fiber thereby increasing the coupling efficiency of the diode pump source. At least one connector is utilized for connecting the double clad fiber and the diode pump source. The connector has at least one adhesive placed in contact with an acrylate coating and not in contact with a glass cladding of the double clad fiber to avoid cladding stripper and fiber splice thereby increasing the fiber coupling efficiency.
Abstract translation: 公开了一种用于提高二极管激光器的光纤耦合效率的系统和方法。 二极管激光器具有二极管泵浦源，用于产生泵浦激光的力和直接耦合到二极管泵浦源的双包层光纤，而不是耦合到多模光纤。 泵浦激光器直接通过双包层光纤传输，从而提高了二极管泵浦源的耦合效率。 至少有一个连接器用于连接双包层光纤和二极管泵浦源。 连接器具有至少一个与丙烯酸酯涂层接触并且不与双包层光纤的玻璃包层接触的粘合剂，以避免包层剥离器和纤维接合，从而增加光纤耦合效率。
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