公开(公告)号：US06778582B1

公开(公告)日：2004-08-17

申请号：US09519890

申请日：2000-03-06

申请人： Aram Mooradian

发明人： Aram Mooradian

IPC分类号： H01S3082

CPC分类号： H01S5/18311 ,  H01S3/109 ,  H01S5/0207 ,  H01S5/1021 ,  H01S5/141 ,  H01S5/18355 ,  H01S5/18386 ,  H01S5/18388 ,  H01S5/423 ,  H01S2301/166

摘要： An active gain region sandwiched between a 100% reflective bottom. Bragg mirror and an intermediate partially reflecting Bragg mirror is formed on a lower surface of a supporting substrate, to thereby provide the first (“active”) resonator cavity of a high power coupled cavity surface emitting laser device. The bottom mirror is preferably in direct thermal contact with an external heat sink for maximum heat removal effectiveness. The reflectivity of the intermediate mirror is kept low enough so that laser oscillation within the active gain region will not occur. The substrate is entirely outside the first active resonator cavity to a level sufficient to cause lasing. The substrate is entirely outside the active cavity but is contained within a second (“passive”) resonator cavity defined by the intermediate mirror and a partially reflecting output mirror, where it is subjected to only a fraction of the light intensity that is circulating in the gain region. The active gain region is preferably electrically excited, with a circular bottom electrode formed by an oxide current aperture between the bottom mirror and the heat sink, and with an annular top electrode formed on an upper surface of the substrate.

摘要翻译： 夹在100％反射底部之间的主动增益区域。 布拉格反射镜和中间部分反射布拉格反射镜形成在支撑基板的下表面上，从而提供高功率耦合腔表面发射激光器件的第一（“有源”）谐振腔。 底部反射镜优选与外部散热器直接热接触，以获得最大的散热效果。 中间反射镜的反射率保持足够低，从而不会发生主动增益区域内的激光振荡。 衬底完全在第一有源谐振腔内，达到足以引起激光的水平。 衬底完全在有源腔体的外部，但是被包含在由中间反射镜和部分反射的输出反射镜所限定的第二（“无源”）谐振器腔中，其中它仅受到在 增益区域。 活性增益区优选地被电激励，其中由底部反射镜和散热器之间的氧化物电流孔形成的圆形底部电极，以及形成在衬底的上表面上的环形顶部电极。

公开(公告)号：US06735235B2

公开(公告)日：2004-05-11

申请号：US10143233

申请日：2002-05-10

申请人： Mihail Sigalas

发明人： Mihail Sigalas

IPC分类号： H01S3082

CPC分类号： G02B6/29382 ,  B82Y20/00 ,  G02B6/1225

摘要： A three-dimensional photonic crystal add-drop filter apparatus has a three-dimensional photonic crystal, a first waveguide for transmitting light having a frequency within a bandgap of the three-dimensional photonic crystal, and a second waveguide. A resonant cavity couples the light in the first waveguide to the second waveguide for extracting at least one wavelength of the light transmitted in the first waveguide and redirecting the extracted light to the second waveguide. The apparatus has a full three-dimensional bandgap and thus does not require total internal reflection to confine the light as is required in a two-dimensional photonic crystal slab. The waveguides can be made single mode such that only one polarization is allowed to propagate thus avoiding mixing of the two polarizations.

摘要翻译： 三维光子晶体分插滤波器装置具有三维光子晶体，用于透射具有三维光子晶体的带隙内的频率的光的第一波导和第二波导。 谐振腔将第一波导中的光耦合到第二波导，用于提取在第一波导中传输的光的至少一个波长，并将提取的光重定向到第二波导。 该装置具有完整的三维带隙，因此不需要全内反射来限制如二维光子晶体板中所需的光。 波导可以制成单一模式，使得仅允许一个极化传播，从而避免两个极化的混合。

公开(公告)号：US06795479B2

公开(公告)日：2004-09-21

申请号：US10191497

申请日：2002-07-10

申请人： Hiroyuki Yokoyama

发明人： Hiroyuki Yokoyama

IPC分类号： H01S3082

CPC分类号： H01S5/10 ,  H01S3/06791 ,  H01S5/026 ,  H01S5/06253 ,  H01S5/0657 ,  H01S5/1071

摘要： An optical pulse train generator is composed of first and second optical resonators and an optical pulse generator. The first optical resonator has therein a first optical path of a first optical path length. The second optical resonator is inserted into the first optical path. The second optical resonator has therein a second optical path of a second optical path length substantially equal to 1/m of the second optical path length, m being a natural number. The optical pulse generator provides the first optical resonator with a first optical pulse train including a component of a first repetition rate tuned corresponding to the first optical path length. The provision of the first optical pulses allows a second optical pulse isolator to be generated in the first optical resonator. The first optical resonator extracts a portion of the second optical pulse train to output an output optical pulse train.

摘要翻译： 光脉冲发生器由第一和第二光谐振器和光脉冲发生器组成。 第一光谐振器具有第一光路长度的第一光路。 第二光学谐振器被插入到第一光路中。 第二光学谐振器具有基本上等于第二光程长度的1 / m的第二光程长度的第二光路，m是自然数。 光脉冲发生器为第一光学谐振器提供第一光脉冲串，其包括对应于第一光路长度调谐的第一重复频率的分量。 提供第一光脉冲允许在第一光谐振器中产生第二光脉冲隔离器。 第一光谐振器提取第二光脉冲串的一部分以输出输出光脉冲串。

公开(公告)号：US06389044B1

公开(公告)日：2002-05-14

申请号：US09583242

申请日：2000-05-31

申请人： James A. Smith

发明人： James A. Smith

IPC分类号： H01S3082

CPC分类号： H04B10/506 ,  H04B10/572

摘要： A multi-wavelength laser (10) includes an optical loop (20) having a single optical cavity that supports a plurality of longitudinal modes, wherein the optical loop has a common gain medium (25) to supply the necessary optical gain to provide for a plurality of lasing longitudinal modes at a plurality of lasing wavelengths. A wavelength selector (30) is insertable into the optical loop within the optical path for selecting at least one lasing longitudinal mode (35) from the plurality of longitudinal modes. Although not exclusively, the multi-wavelength laser (10) is usable for WDM interferometric sensing (240).

摘要翻译： 多波长激光器（10）包括具有支撑多个纵向模式的单个光学腔的光学环路（20），其中光学环路具有公共增益介质（25），以提供所需的光学增益以提供 多个激光波长的多个激光纵向模式。 波长选择器（30）可插入到光路内的光学环路中，用于从多个纵向模式中选择至少一个激光纵向模式（35）。 尽管不是唯一地，多波长激光器（10）可用于WDM干涉测量（240）。

公开(公告)号：US06775314B1

公开(公告)日：2004-08-10

申请号：US09998114

申请日：2001-11-29

申请人： Karen E. Waldrip ,  Stephen R. Lee ,  Jung Han

发明人： Karen E. Waldrip ,  Stephen R. Lee ,  Jung Han

IPC分类号： H01S3082

CPC分类号： B82Y20/00 ,  H01S5/0213 ,  H01S5/18361 ,  H01S5/3201 ,  H01S5/32341 ,  H01S2301/173

摘要： A supported distributed Bragg reflector or superlattice structure formed from a substrate, a nucleation layer deposited on the substrate, and an interlayer deposited on the nucleation layer, followed by deposition of (Al,Ga,B)N layers or multiple pairs of (Al,Ga,B)N/(Al,Ga,B)N layers, where the interlayer is a material selected from AlN, AlxGa1-xN, and AlBN with a thickness of approximately 20 to 1000 angstroms. The interlayer functions to reduce or eliminate the initial tensile growth stress, thereby reducing cracking in the structure. Multiple interlayers utilized in an AlGaN/GaN DBR structure can eliminate cracking and produce a structure with a reflectivity value greater than 0.99.

摘要翻译： 由基底，沉积在基底上的成核层和沉积在成核层上的层间形成的支撑分布布拉格反射体或超晶格结构，然后沉积（Al，Ga，B）N层或多对（Al， Ga，B）N /（Al，Ga，B）N层，其中中间层为选自AlN，Al x Ga 1-x N和AlBN的材料，厚度为约20至1000埃。 中间层起到减少或消除初始拉伸生长应力的作用，从而减少结构中的开裂。 在AlGaN / GaN DBR结构中使用的多个夹层可以消除破裂并产生具有大于0.99的反射率值的结构。

公开(公告)号：US06404798B1

公开(公告)日：2002-06-11

申请号：US09208287

申请日：1998-12-08

申请人： Edgar Leckel ,  Emmerich Mueller ,  Clemens Rueck

发明人： Edgar Leckel ,  Emmerich Mueller ,  Clemens Rueck

IPC分类号： H01S3082

CPC分类号： H01S5/141 ,  H01S5/143

摘要： A laser source with an optical resonator includes a laser gain medium with a low reflective first facet emitting a laser beam within the optical resonator. A wavelength dependent mirror receives the laser beam and reflects back a wavelength separated laser beam. A beam splitter divides the wavelength separated laser beam into a feedback beam directed toward the laser gain medium and a first output beam to be coupled out of the optical resonator. As a first improvement, the laser gain medium includes a second facet which is partly reflective, so that the second facet emits a second output beam of the laser source. As a second improvement, the laser source further includes a mirror arranged in a way that a beam diffracted by the wavelength dependent mirror is reflected back and again diffracted by the wavelength dependent mirror, so that the twice diffracted beam provides the wavelength separated laser beam.

摘要翻译： 具有光学谐振器的激光源包括具有在光学谐振器内发射激光束的低反射第一面的激光增益介质。 波长相关镜接收激光束并反射回波长分离的激光束。 光束分离器将波长分离的激光束分成指向激光增益介质的反射光束和要耦合出光谐振器的第一输出光束。 作为第一改进，激光增益介质包括部分反射的第二面，使得第二面发射激光源的第二输出光束。 作为第二改进，激光源还包括以由波长相关的反射镜衍射的光束被反射回并再次由波长相关镜衍射的方式布置的反射镜，使得两次衍射光束提供波长分离的激光束。

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：US06356575B1

公开(公告)日：2002-03-12

申请号：US09347661

申请日：1999-07-06

申请人： Joseph M. Fukumoto

发明人： Joseph M. Fukumoto

IPC分类号： H01S3082

CPC分类号： H01S3/082 ,  H01S3/005 ,  H01S3/0064 ,  H01S3/08059 ,  H01S3/08081 ,  H01S3/10046 ,  H01S3/107 ,  H01S3/115 ,  H01S3/2308 ,  H01S3/2383 ,  H01S2301/206

摘要： A dual cavity multifunction laser comprising a diode-pumped, contact cooled, slab laser head that supports two different length unstable resonators. The laser produces short ( 15 ns), higher energy 1 &mgr;m pulses from the same laser system at different repetition rates, if desired. The output from each resonator can be separately optimized for different operating modes such as target designation and target profiling. The unstable resonators use independently optimized super Gaussian output couplers to generate high quality beams for each of the high and low pulse energy modes. The resonators also share a common bounce path to minimize intracavity losses and thermally induced birefringence for both resonators.

摘要翻译： 一种双腔多功能激光器，包括支持两个不同长度的不稳定谐振器的二极管泵浦，接触冷却的平板激光头。 如果需要，激光器产生短（（8ns），低能量1mum脉冲或长（> 15ns），来自相同激光系统的不同重复频率的较高能量1mum脉冲。 每个谐振器的输出可以针对不同的操作模式进行单独优化，如目标指定和目标分析。 不稳定的谐振器使用独立优化的超高斯输出耦合器，为每个高和低脉冲能量模式生成高质量的光束。 谐振器还具有共同的弹跳路径以最小化谐振器的腔内损耗和热诱导双折射。

公开(公告)号：US06704343B2

公开(公告)日：2004-03-09

申请号：US10198229

申请日：2002-07-18

申请人： Hongyu Deng ,  Thomas Lenosky ,  Giorgio Giaretta ,  Jan Lipson

发明人： Hongyu Deng ,  Thomas Lenosky ,  Giorgio Giaretta ,  Jan Lipson

IPC分类号： H01S3082

CPC分类号： H01S5/183 ,  H01S5/105 ,  H01S2301/163 ,  H01S2301/166

摘要： A single mode high power vertical cavity surface emitting laser (VCSEL) using photonic crystals. A photonic crystal is included in at least one mirror layer of a VCSEL. The reflectivity of the photonic crystal is dependent on the wavelength and incident angle of the photons. The photonic crystal can be formed such that the VCSEL lases at a single mode. Because a single mode is generated, the aperture of the VCSEL can be enlarged to increase the power that is generated by the VCSEL for that mode. The photonic crystal can be used with/without DBR layers. The photonic crystal, in one example, forms an external cavity.

摘要翻译： 使用光子晶体的单模高功率垂直腔面发射激光器（VCSEL）。 光子晶体包括在VCSEL的至少一个镜层中。 光子晶体的反射率取决于光子的波长和入射角。 可以形成光子晶体，使得VCSEL以单一模式发光。 因为产生单个模式，所以可以放大VCSEL的孔径以增加由VCSEL为该模式产生的功率。 光子晶体可以使用/不使用DBR层。 在一个示例中，光子晶体形成外部空腔。

公开(公告)号：US06567454B1

公开(公告)日：2003-05-20

申请号：US09847177

申请日：2001-05-01

申请人： Arthur J. Fischer ,  Kent D. Choquette ,  Weng W. Chow

发明人： Arthur J. Fischer ,  Kent D. Choquette ,  Weng W. Chow

IPC分类号： H01S3082

CPC分类号： H01S5/426 ,  H01S5/0622 ,  H01S5/1021 ,  H01S5/18308 ,  H01S5/18311 ,  H01S5/18358 ,  H01S5/2063 ,  H01S5/4087

摘要： A new class of coupled-resonator vertical-cavity semiconductor lasers has been developed. These lasers have multiple resonant cavities containing regions of active laser media, resulting in a multi-terminal laser component with a wide range of novel properties.

摘要翻译： 已经开发了一类新型的耦合谐振器垂直腔半导体激光器。 这些激光器具有包含有源激光介质区域的多个谐振腔，产生具有广泛新颖特性的多端子激光器部件。