专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20200292756A1 Fabrication Method for Endcapped Fiber Laser Pigtails with Sub-Micron Virtual Waist Positional Accuracy 审中-公开
公开(公告)号：US20200292756A1
公开(公告)日：2020-09-17
申请号：US16740589
申请日：2020-01-13
申请人： Jason E. Langseth , Christopher Hwang , William Nowak , Daniel Miller , David Fouche , Joshua Olitzky
发明人： Jason E. Langseth , Christopher Hwang , William Nowak , Daniel Miller , David Fouche , Joshua Olitzky
IPC分类号： G02B6/255 , G02B6/42 , G01M11/00
摘要： Arrays of fiber pigtails can be used to project and receive light. Unfortunately, most fiber pigtail arrays are not aligned well enough for coherently combining different optical beams. This imprecision stems in part from misalignment between the optical fiber and the endcap spliced to the end of the optical fiber. The endcap is often polished, curved, or patterned, causing the light emitted by the endcapped fiber to refract or diffract as it exits the endcap. This refraction or diffraction shifts the apparent position of the beam waist from its actual position. Measuring this virtual beam waist position before and after splicing the endcap to the fiber increases the absolute precision with which the fiber is aligned to the endcap. This increase in absolute precision reduces the deviation in virtual beam waist position among endcapped fibers, making it easier to produce arrays of endcapped fibers aligned precisely enough for coherent beam combining.

2. 发明申请

US20190140414A1 ANTI-REFLECTION COATED PUMP DUMPS 审中-公开
公开(公告)号：US20190140414A1
公开(公告)日：2019-05-09
申请号：US16057288
申请日：2018-08-07
申请人： Shaheed Rahim , Jason E. Langseth
发明人： Shaheed Rahim , Jason E. Langseth
IPC分类号： H01S3/06 , H01S3/067 , H01S3/00 , H01S3/091
摘要： A pump dump or cladding mode stripper is used to remove unwanted light from the cladding of an optical fiber. Conventional pump dumps include high-index polymer coatings and roughened cladding outer surfaces. Unfortunately, high-index polymer coatings absorb the stripped light, so they melt or burn at high optical powers, and roughening the cladding's outer surface makes the fiber too brittle for many applications. Fortunately, it is possible to frustrate total internal reflection at the interface between the cladding and air by texturing the cladding's outer surface with irregularly distributed, shaped, and size features that are less than a micron in size. These features don't absorb light and are too small to make the fiber brittle, yet they still cause incident pump light to exit the optical fiber. These qualities make them suitable for dumping high-power pump beams from the claddings of fiber amplifiers and fiber lasers.

3. 发明申请

US20210351559A1 SBS Suppression and Electronic Path Length Matching in Coherent Beam Combining 有权
公开(公告)号：US20210351559A1
公开(公告)日：2021-11-11
申请号：US17195115
申请日：2021-03-08
申请人： Jason E. Langseth , Andrew Benedick , Seth TROTZ
发明人： Jason E. Langseth , Andrew Benedick , Seth TROTZ
IPC分类号： H01S3/23 , H01S3/13
摘要： In coherent beam combining, the beams can be phase-modulated with a pseudo-random bit sequence (PRBS) to prevent stimulated Brillouin scattering (SBS) downstream. To coherently combine the phase-modulated beams, however, the PRBS waveforms should be true-time-delayed to within a small fraction of the bit duration. Traditionally, this true time delay is achieved by cutting optical fibers to length or with optical trombones. But trimming fibers is hard to do precisely, and optical trombones have large insertion loss. In addition, the path length mismatch varies as the fibers heat up and/or vibrate. Here, the beams are generated from a kilohertz linewidth seed split among N>1 (e.g., N=100) arms. Each arm is phase-modulated with a separate copy of the unique PRBS pattern. The relative phase of the PRBS patterns is stabilized by phase-locking the master oscillators used to read out the PRBS patterns. The PRBS patterns can be phase shifted with respect to one another to compensate for physical path length mismatches of the optical fibers. Scanning the relative phase of the PRBS pattern used to modulate different arms yields a cross-correlation peak in combined power when the phases are matched at the combination plane.

4. 发明授权

US08433161B2 All glass fiber laser cladding mode stripper 有权
标题翻译：所有玻璃纤维激光包层模式剥离器
公开(公告)号：US08433161B2
公开(公告)日：2013-04-30
申请号：US12886924
申请日：2010-09-21
申请人： Jason E. Langseth , Alexander E. Mandl
发明人： Jason E. Langseth , Alexander E. Mandl
IPC分类号： G02B6/26
CPC分类号： G02B6/14 , H01S3/0407 , H01S3/042 , H01S3/06708 , H01S3/06729 , H01S3/094007 , H01S3/1618
摘要： A system configured to generate an optical beam from a fiber laser is presented. The system includes a fiber gain medium having a core and a cladding, the core being configured to convert radiation from a pump beam into an output beam, the cladding having a mode propagating section and a mode stripping section bounded on a near end and a distal end by the mode propagating section, the mode stripping section of the cladding being configured to scatter excess pump radiation received from the mode propagating section in a substantially outwardly radial direction. The system also includes a rigid support member into which the fiber gain medium is placed, the rigid support member completely encompassing the mode stripping section of the cladding and joined to the fiber at the mode propagating section of the cladding.
摘要翻译：提出了一种被配置为从光纤激光器产生光束的系统。该系统包括具有芯和包层的光纤增益介质，该芯被配置为将来自泵浦光束的辐射转换成输出光束，该包层具有模式传播部分和在近端和远端通过模式传播部分结束，包层的模式剥离部分被配置成在基本向外的径向方向上散射从模式传播部分接收的多余的泵浦辐射。该系统还包括刚性支撑构件，纤维增益介质放置在该刚性支撑构件中，刚性支撑构件完全包围包层的模式剥离部分并且在包层的模式传播部分处连接到纤维。

5. 发明申请

US20120070115A1 ALL GLASS FIBER LASER CLADDING MODE STRIPPER 有权
标题翻译：所有玻璃纤维激光切割模式剥皮机
公开(公告)号：US20120070115A1
公开(公告)日：2012-03-22
申请号：US12886924
申请日：2010-09-21
申请人： Jason E. Langseth , Alexander E. Mandl
发明人： Jason E. Langseth , Alexander E. Mandl
IPC分类号： G02B6/26 , G02B6/02
CPC分类号： G02B6/14 , H01S3/0407 , H01S3/042 , H01S3/06708 , H01S3/06729 , H01S3/094007 , H01S3/1618
摘要： A system configured to generate an optical beam from a fiber laser is presented. The system includes a fiber gain medium having a core and a cladding, the core being configured to convert radiation from a pump beam into an output beam, the cladding having a mode propagating section and a mode stripping section bounded on a near end and a distal end by the mode propagating section, the mode stripping section of the cladding being configured to scatter excess pump radiation received from the mode propagating section in a substantially outwardly radial direction. The system also includes a rigid support member into which the fiber gain medium is placed, the rigid support member completely encompassing the mode stripping section of the cladding and joined to the fiber at the mode propagating section of the cladding.
摘要翻译：提出了一种被配置为从光纤激光器产生光束的系统。该系统包括具有芯和包层的光纤增益介质，该芯被配置为将来自泵浦光束的辐射转换成输出光束，该包层具有模式传播部分和在近端和远端通过模式传播部分结束，包层的模式剥离部分被配置成在基本向外的径向方向上散射从模式传播部分接收的多余的泵浦辐射。该系统还包括刚性支撑构件，纤维增益介质放置在该刚性支撑构件中，刚性支撑构件完全包围包层的模式剥离部分并且在包层的模式传播部分处连接到纤维。

6. 发明授权

US07566582B2 Systems, methods and devices relating to actuatably moveable machines 有权
标题翻译：与可动式移动机器有关的系统，方法和装置
公开(公告)号：US07566582B2
公开(公告)日：2009-07-28
申请号：US11258688
申请日：2005-10-25
申请人： H. Charles Tapalian , Jason E. Langseth
发明人： H. Charles Tapalian , Jason E. Langseth
IPC分类号： H01L21/00
CPC分类号： B81B3/0021 , B81B2203/0127 , G02B6/12007 , G02B6/13 , G02B26/001 , G02B26/06
摘要： Systems, methods and devices relating to actuatably movable machines and with methods of using and manufacturing the same.
摘要翻译：与可致动机器相关的系统，方法和装置以及使用和制造该方法的方法。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式