公开(公告)号：US08457164B2

公开(公告)日：2013-06-04

申请号：US12734887

申请日：2008-11-28

申请人： Reto Haering ,  Armin Zach

发明人： Reto Haering ,  Armin Zach

IPC分类号： H01S3/30

CPC分类号： H01S3/06791 ,  H01S3/0675 ,  H01S3/1118

摘要： The invention relates to a fiber laser comprising a ring-shaped resonator (3). A first section of the resonator is formed by an optical fiber (7) while a second section of the resonator is formed by an optically pumped amplifier fiber (8). The fiber laser further comprises an injection point (4) for injecting light of a pump light source (1) into the resonator (3) as well as an extraction point (5) for extracting generated laser light from the resonator (3). The aim of the invention is to design a more developed fiber laser. The aim is achieved by providing the resonator (3) with at least one reflective optical component (12, 51) which reflects the laser light circulating in the resonator (3).

摘要翻译： 本发明涉及一种包括环形谐振器（3）的光纤激光器。 谐振器的第一部分由光纤（7）形成，而谐振器的第二部分由光泵浦放大器光纤（8）形成。 光纤激光器还包括用于将泵浦光源（1）的光注入到谐振器（3）中的注入点（4）以及用于从谐振器（3）提取生成的激光的提取点（5）。 本发明的目的是设计一种更为发达的光纤激光器。 目的是通过向谐振器（3）提供反射在谐振器（3）中循环的激光的至少一个反射光学部件（12,51）来实现。

公开(公告)号：US20100296528A1

公开(公告)日：2010-11-25

申请号：US12734887

申请日：2008-11-28

申请人： Reto Haering ,  Armin Zach

发明人： Reto Haering ,  Armin Zach

IPC分类号： H01S3/067

CPC分类号： H01S3/06791 ,  H01S3/0675 ,  H01S3/1118

摘要： The invention relates to a fiber laser comprising a ring-shaped resonator (3). A first section of the resonator is formed by an optical fiber (7) while a second section of the resonator is formed by an optically pumped amplifier fiber (8). The fiber laser further comprises an injection point (4) for injecting light of a pump light source (1) into the resonator (3) as well as an extraction point (5) for extracting generated laser light from the resonator (3). The aim of the invention is to design a more developed fiber laser. The aim is achieved by providing the resonator (3) with at least one reflective optical component (12, 51) which reflects the laser light circulating in the resonator (3).

摘要翻译： 本发明涉及一种包括环形谐振器（3）的光纤激光器。 谐振器的第一部分由光纤（7）形成，而谐振器的第二部分由光泵浦放大器光纤（8）形成。 光纤激光器还包括用于将泵浦光源（1）的光注入到谐振器（3）中的注入点（4）以及用于从谐振器（3）提取生成的激光的提取点（5）。 本发明的目的是设计一种更为发达的光纤激光器。 目的是通过向谐振器（3）提供反射在谐振器（3）中循环的激光的至少一个反射光学部件（12,51）来实现。

公开(公告)号：US06735234B1

公开(公告)日：2004-05-11

申请号：US09502959

申请日：2000-02-11

申请人： Ruediger Paschotta ,  Reto Haering ,  Ursula Keller

发明人： Ruediger Paschotta ,  Reto Haering ,  Ursula Keller

IPC分类号： H01S3091

CPC分类号： H01S5/141 ,  H01S3/094069 ,  H01S3/1118 ,  H01S5/041 ,  H01S5/0601 ,  H01S5/0657 ,  H01S5/183 ,  H01S5/2036

摘要： A passively mode-locked optically pumped semiconductor vertical-external-cavity surface-emitting laser (OPS-EXSEL) is disclosed. The laser is mode locked by a semiconductor saturable absorber mirror (SESAM) which forms part of an external cavity. Both the beam-quality limitations of edge-emitting lasers, and the power restrictions of electrically pumped surface-emitting lasers are overcome. The laser uses a semiconductor wafer in which a stack of quantum wells is grown adjacent to a single Bragg-mirror structure. Light from one or more multi-mode high-power diode lasers is focused onto the face of the wafer and pumps the wells by absorption in the barrier regions. The area of the laser mode on the active mirror can be about 104 times larger than the mode area on the facet of an edge-emitting laser, offering scope for the generation of high average power and large pulse energy. At the same time the external cavity enforces fundamental mode operation in a circular, near-diffraction-limited beam. With the laser, sub-picosecond pulse durations are achievable by eliminating coupled cavity effects and by external pulse compression. Band-gap engineering can be used to shape the pulses, or even integrate gain and saturable absorption within the same wafer. Thus, rugged, efficient pulsed laser sources with high average power in a nearly diffraction-limited beam, sub-picosecond pulse durations and multi-GHz repetition rates, which operate in a broad range of wavelengths accessible by bandgap engineering are made possible.

摘要翻译： 公开了被动锁模光泵浦半导体垂直 - 外腔表面发射激光器（OPS-EXSEL）。 激光器由形成外部腔体的一部分的半导体可饱和吸收镜（SESAM）模式锁定。 边缘发射激光器的光束质量限制以及电泵浦表面发射激光器的功率限制都被克服。 激光器使用半导体晶片，其中量子阱的堆叠生长成与单个布拉格 - 反射镜结构相邻。 来自一个或多个多模式大功率二极管激光器的光聚焦在晶片的表面上并通过在屏障区域中的吸收来泵浦阱。 有源反射镜上激光模式的面积可以比边缘发射激光器面上的模式面积大10倍，为生成高平均功率和大脉冲能量提供了可能。 同时，外部腔体在圆形，近衍射极限的光束中执行基模操作。 通过激光，可以通过消除耦合腔效应和外部脉冲压缩来实现亚皮秒脉冲持续时间。 带隙工程可用于对脉冲进行整形，甚至将增益和可饱和吸收集成在同一晶片内。 因此，在接近衍射受限的光束，亚皮秒脉冲持续时间和多GHz重复频率下具有高平均功率的坚固，高效的脉冲激光源可以通过带隙工程可访问的宽波长范围内工作。