公开(公告)号：US08526103B2

公开(公告)日：2013-09-03

申请号：US12993617

申请日：2010-08-19

申请人： Stefan Mohrdiek ,  Evgeny Zibik ,  Hans Ulrich Pfeiffer ,  Boris Sverdlov

发明人： Stefan Mohrdiek ,  Evgeny Zibik ,  Hans Ulrich Pfeiffer ,  Boris Sverdlov

IPC分类号： H01S3/00

CPC分类号： H01S5/147 ,  G02B6/262 ,  G02B6/30 ,  G02B6/4203 ,  H01S5/028 ,  H01S5/065 ,  H01S5/101 ,  H01S5/1085 ,  H01S2301/02

摘要： A laser device having a semiconductor gain element optically coupled to an optical fiber by using an angled anamorphic fiber lens and including a wavelength-selective front reflector. The laser device possesses improved output characteristics such as a highly linear laser emission output, even when the amplification section produces a high amount of gain. Such a laser source can also be used in various applications such as pump lasers for fiber amplifiers or frequency doubling systems.

摘要翻译： 一种具有半导体增益元件的激光器件，该半导体增益元件通过使用成角度的变形光纤透镜光耦合到光纤并且包括波长选择性前反射器。 即使放大部产生大量的增益，激光装置具有改进的输出特性，例如高度线性的激光发射输出。 这种激光源还可用于各种应用中，例如用于光纤放大器或倍频系统的泵浦激光器。

公开(公告)号：US06771687B1

公开(公告)日：2004-08-03

申请号：US10049886

申请日：2002-05-20

申请人： Stefan Mohrdiek

发明人： Stefan Mohrdiek

IPC分类号： H01S3082

CPC分类号： H01S5/141 ,  H01S3/094003 ,  H01S5/146

摘要： The invention relates to the stabilization of semiconductor laser diode sources as they are extensively used in the field of optical communication. Such lasers are mostly employed as so-called pump laser sources for fiber amplifiers, e.g. Erbium-doped fiber amplifiers, and are designed to provide a narrow-bandwidth optical radiation with a stable power output in a given frequency band. To improve the stability of such laser sources compared to prior art designs, a plurality of “external” cavities is provided. In the commonly employed optical fibers for conducting the laser beam, these cavities may be formed by a plurality of appropriately designed Bragg gratings. However, the cavities may as well be formed by other means reflecting a given amount of the energy back to the laser in a desired frequency band, thus effecting the stabilization of the laser's intensity and frequency.

摘要翻译： 本发明涉及在光通信领域广泛应用的半导体激光二极管源的稳定化。 这种激光器主要用作所谓的用于光纤放大器的泵浦激光源，例如， 掺铒光纤放大器，并且被设计为提供在给定频带中具有稳定功率输出的窄带宽光辐射。 为了提高这种激光源的稳定性，与现有技术的设计相比，提供了多个“外部”空腔。 在用于传导激光束的常用光纤中，这些空腔可以由多个适当设计的布拉格光栅形成。 然而，空腔也可以通过将给定量的能量反射回所需频带的激光器的其它装置形成，从而实现激光器的强度和频率的稳定。

公开(公告)号：US20110292496A1

公开(公告)日：2011-12-01

申请号：US12993617

申请日：2010-08-19

申请人： Stefan Mohrdiek ,  Evgeny Zibik ,  Hans Ulrich Pfeiffer ,  Boris Sverdlov

发明人： Stefan Mohrdiek ,  Evgeny Zibik ,  Hans Ulrich Pfeiffer ,  Boris Sverdlov

IPC分类号： H01S3/067

CPC分类号： H01S5/147 ,  G02B6/262 ,  G02B6/30 ,  G02B6/4203 ,  H01S5/028 ,  H01S5/065 ,  H01S5/101 ,  H01S5/1085 ,  H01S2301/02

摘要： A laser device having a semiconductor gain element optically coupled to an optical fiber by using an angled anamorphic fiber lens and including a wavelength-selective front reflector. The laser device possesses improved output characteristics such as a highly linear laser emission output, even when the amplification section produces a high amount of gain. Such a laser source can also be used in various applications such as pump lasers for fiber amplifiers or frequency doubling systems.

摘要翻译： 一种具有半导体增益元件的激光器件，该半导体增益元件通过使用成角度的变形光纤透镜光耦合到光纤并且包括波长选择性前反射器。 即使放大部产生大量的增益，激光装置具有改进的输出特性，例如高度线性的激光发射输出。 这种激光源还可用于各种应用中，例如用于光纤放大器或倍频系统的泵浦激光器。

公开(公告)号：US20080123703A1

公开(公告)日：2008-05-29

申请号：US11568285

申请日：2005-04-25

申请人： Stefan Mohrdiek ,  Tomas Pliska ,  Nicolai Matuschek

发明人： Stefan Mohrdiek ,  Tomas Pliska ,  Nicolai Matuschek

IPC分类号： H01S5/14

CPC分类号： H01S5/146

摘要： This invention relates to the stabilization of a laser source used in optoelectronics, specifically a source comprising a semiconductor laser diode (1). Such laser sources are often used as so-called pump lasers for fiber amplifiers in the field of optical communication, erbium-doped fiber amplifiers being a prominent example. Such lasers are usually designed to provide a narrow bandwidth optical radiation with a stable power output in a given frequency band. The present invention now concerns such a laser source using external reflector means, preferably consisting of one or more appropriately designed fiber Bragg gratings (9), providing very high relative feedback with an extremely narrow bandwidth, combined with a very long external cavity encompassing about 100 modes or more and an extremely low front facet (2) reflectivity of the laser diode. This stabilizes the laser source extremely well in its operation, without the need for an active temperature stabilizing element.

摘要翻译： 本发明涉及用于光电子学的激光源的稳定化，具体地说，涉及包括半导体激光二极管（1）的源。 这种激光源通常用作光通信领域的光纤放大器的所谓的泵浦激光器，铒掺杂光纤放大器是一个突出的例子。 这种激光器通常设计成在给定频带中提供具有稳定功率输出的窄带宽光辐射。 本发明现在涉及使用外部反射器装置的这种激光源，优选由一个或多个适当设计的光纤布拉格光栅（9）组成，提供非常高的相对反馈，具有非常窄的带宽，与包含约100个 模式或更多和极低的前面（2）激光二极管的反射率。 这在其操作中稳定了激光源，而不需要主动的温度稳定元件。

公开(公告)号：US08199784B2

公开(公告)日：2012-06-12

申请号：US12248984

申请日：2008-10-10

申请人： Stefan Mohrdiek ,  Joerg Troger ,  Nicolai Matuschek

发明人： Stefan Mohrdiek ,  Joerg Troger ,  Nicolai Matuschek

IPC分类号： H01S3/098 ,  H01S3/13

CPC分类号： H01S5/146 ,  H01S3/06754 ,  H01S3/094003 ,  H01S3/094076 ,  H01S3/09415 ,  H01S3/1305 ,  H01S5/0287 ,  H01S5/06216 ,  H01S5/0657 ,  H01S5/06835 ,  H01S5/1021 ,  H01S5/141 ,  H01S2301/03 ,  H01S2301/06

摘要： A laser light source comprises a semiconductor laser adapted for pulsed operation, a partially transmitting wavelength selective light reflector. The semiconductor laser comprises a front facet and a back facet. The front facet and the back facet define an internal laser cavity. The internal laser cavity comprises a laser active medium. The partially transmitting wavelength selective light reflector has a peak reflectivity within a gain bandwidth of said laser active medium. The wavelength selective light reflector and the back facet define an external laser cavity. A roundtrip time of light in the external laser cavity is about 20 nanoseconds or less. A full width half maximum bandwidth of the wavelength selective light reflector is adapted to accommodate at least 12 longitudinal modes of the internal laser cavity and at least 250 longitudinal modes of the external laser cavity.

摘要翻译： 激光源包括适于脉冲操作的半导体激光器，部分透射的波长选择性光反射器。 半导体激光器包括前刻面和后刻面。 前面和后面定义了内部激光腔。 内部激光腔包括激光活性介质。 部分透射波长选择光反射器在所述激光活性介质的增益带宽内具有峰值反射率。 波长选择性光反射器和背面定义了外部激光腔。 外部激光腔的往返时间约为20纳秒或更短。 波长选择光反射器的全宽度半最大带宽适于容纳至少12个纵向模式的内部激光腔和至少250个纵向模式的外部激光腔。

公开(公告)号：US07099361B2

公开(公告)日：2006-08-29

申请号：US10775302

申请日：2004-02-10

申请人： Nicolai Matuschek ,  Stefan Mohrdiek ,  Tomas Pliska

发明人： Nicolai Matuschek ,  Stefan Mohrdiek ,  Tomas Pliska

IPC分类号： H01S3/13 ,  H01S3/08

CPC分类号： H01S5/141 ,  H01S5/028 ,  H01S5/0654 ,  H01S5/0656 ,  H01S5/0683 ,  H01S5/142 ,  H01S5/147

摘要： The invention relates to the stabilization of high power semiconductor laser diode sources as they are extensively used in the field of optical communication. Such lasers are mostly employed as so-called pump laser sources for fiber amplifiers, e.g. erbium-doped fiber amplifiers, and are designed to provide a narrow-bandwidth optical radiation with a stable power output in a given frequency band. To improve the wavelength locking range of such laser sources when operating without an active temperature stabilizing element, an external reflector providing very high relative feedback is used. The reflectivity bandwidth of the external reflector is broadened for improving the stability of the laser source. In commonly employed optical fibers for conducting the laser beam, the external reflector is formed by one or a plurality of appropriately designed fiber Bragg gratings.

摘要翻译： 本发明涉及在光通信领域广泛应用的大功率半导体激光二极管源的稳定化。 这种激光器主要用作所谓的用于光纤放大器的泵浦激光源，例如， 掺铒光纤放大器，并且被设计为在给定频带中提供具有稳定功率输出的窄带宽光辐射。 为了在没有有源温度稳定元件的情况下操作时改善这种激光源的波长锁定范围，使用提供非常高的相对反馈的外部反射器。 为了提高激光源的稳定性，外部反射器的反射带宽变宽。 在通常使用的用于传导激光束的光纤中，外部反射器由一个或多个适当设计的光纤布拉格光栅形成。