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1. 发明授权

US06195166B1 Photoreflectance spectral analysis of semiconductor laser structures 有权
标题翻译：半导体激光器结构的光反射光谱分析
公开(公告)号：US06195166B1
公开(公告)日：2001-02-27
申请号：US09305712
申请日：1999-05-05
申请人： Mary L. Gray , Harald F. Hess , Mark S. Hybertsen , Leonard Jan-Peter Ketelsen
发明人： Mary L. Gray , Harald F. Hess , Mark S. Hybertsen , Leonard Jan-Peter Ketelsen
IPC分类号： G01N2155
CPC分类号： G01N21/1717
摘要： A micro-photoreflectance technique has been developed for performing non-destructive analysis of III-V optoelectronic devices. By using a significantly reduced spot size (for example, 10 micrometers), various compositional features of the device may be analyzed and the Franz-Keldysh oscillations appearing in the micro-photoreflectance wavelength spectra (such as those beyond the barrier/SCL wavelength in an EML structure) may be analyzed to provide information regarding the physical characteristics of the device, such as the electric field and p-i junction placement within an exemplary EML device structure.
摘要翻译：已经开发了用于对III-V光电子器件进行非破坏性分析的微光反射技术。通过使用显着减小的光斑尺寸（例如，10微米），可以分析器件的各种组成特征，并且出现在微光反射波长光谱中的Franz-Keldysh振荡（例如，在 EML结构）可以被提供关于装置的物理特征的信息，例如示例性EML装置结构内的电场和pi结布置。

2. 发明授权

US06829262B1 Aging in tunable semiconductor lasers 有权
标题翻译：可调谐半导体激光器老化
公开(公告)号：US06829262B1
公开(公告)日：2004-12-07
申请号：US09668675
申请日：2000-09-22
申请人： David Alan Ackerman , Sung-Nee George Chu , Eric J Dean , John Evan Johnson , Leonard Jan-Peter Ketelsen , Liming Zhang
发明人： David Alan Ackerman , Sung-Nee George Chu , Eric J Dean , John Evan Johnson , Leonard Jan-Peter Ketelsen , Liming Zhang
IPC分类号： H01S313
CPC分类号： H01S5/0021 , H01S5/06256 , H01S5/06825 , H01S5/125
摘要： A process evaluates an aging property of a distributed Bragg reflector (DBR) laser. The process includes illuminating a Bragg grating of the distributed Bragg reflector (DBR) laser with light while the DBR laser is both supplied a tuning current and not lasing. The process also includes performing an action to the DBR laser responsive to a wavelength of a Bragg peak in a portion of the light reflected by the Bragg grating and a value of the tuning current supplied during the illuminating.
摘要翻译：一个过程评估分布式布拉格反射器（DBR）激光器的老化特性。该过程包括用光照射分布式布拉格反射器（DBR）激光器的布拉格光栅，而DBR激光器被提供调谐电流而不是激光。该过程还包括响应于由布拉格光栅反射的光的一部分中的布拉格峰的波长和在照明期间提供的调谐电流的值，向DBR激光器执行动作。

3. 发明授权

US06275317B1 Hybrid integration of a wavelength selectable laser source and optical amplifier/modulator 失效
标题翻译：波长可选激光源和光放大器/调制器的混合集成
公开(公告)号：US06275317B1
公开(公告)日：2001-08-14
申请号：US09038269
申请日：1998-03-10
申请人： Christopher Richard Doerr , John Evan Johnson , Charles H. Joyner , Leonard Jan-Peter Ketelsen , Uziel Koren , Dirk Joachim Muehlner , Rudolph Conrad Schweizer , Lawrence Warren Stulz
发明人： Christopher Richard Doerr , John Evan Johnson , Charles H. Joyner , Leonard Jan-Peter Ketelsen , Uziel Koren , Dirk Joachim Muehlner , Rudolph Conrad Schweizer , Lawrence Warren Stulz
IPC分类号： H04B1000
CPC分类号： H04B10/505 , H01S5/02252 , H01S5/02284 , H01S5/0265 , H01S5/4012 , H01S5/4087
摘要： A hybrid integrated optical transmitter comprising a wavelength selectable laser (WSL) source coupled to an optical amplifier/modulator has been realized. Disposed between the optical combiner and the optical amplifier/modulator is an “optical isolator.” The optical isolator includes at least a Faraday rotator and, either solely or in combination with a single polarizer and/or half-wave plate is used to selectively rotate and pass polarized light egressing from the wavelength selectable laser source. Optical isolation is achieved by the egressing radiation from and back reflections incident on the laser source being at two mutually exclusive orthogonal polarization states or by the reflections being totally extinguished. Advantageously, the laser source is unresponsive to orthogonally polarized light, and hence any unwanted back reflections do not substantially affect the operating characteristics of the laser(s). Optical isolation may be further improved, however, with the use of an additional polarizer positioned in front of the Faraday rotator to totally extinguish the polarized back reflections. Preferably, a latching Faraday rotator is used. As such, permanent magnets are not needed to maintain the latching Faraday rotator in its saturated state, and substantially reduces cost, size and complexity of the transmitter package. The wavelength selectable laser source is integrated on a single substrate with an optical combiner that directs the radiation to the optical amplifier/modulator, which is integrated on a second substrate. Alternatively, the laser source and optical combiner may be integrated on different substrates.
摘要翻译：已经实现了包括耦合到光放大器/调制器的波长可选激光器（WSL）源的混合集成光发射机。配置在光学组合器和光放大器/调制器之间的是“光隔离器”。光隔离器至少包括法拉第旋转器，单独使用或与单偏振器和/或半波片组合用于选择性地旋转并通过从波长可选激光源出射的偏振光。光学隔离是通过从入射到激光源的辐射和来自两个互相排斥的正交极化状态的反射和完全熄灭的反射来实现的。有利地，激光源对正交偏振光无反应，因此任何不需要的反射反射基本上不影响激光器的操作特性。然而，通过使用位于法拉第旋转器前面的附加偏振器来完全消除偏振反射反射，可以进一步改善光学隔离。优选地，使用闭锁法拉第旋转器。因此，不需要永磁体来保持锁定法拉第旋转器处于饱和状态，并且显着降低发射器封装的成本，尺寸和复杂性。波长可选激光源集成在单个基板上，并具有将辐射引导到集成在第二基板上的光放大器/调制器的光学组合器。或者，激光源和光组合器可以集成在不同的衬底上。

4. 发明授权

US6162655A Method of fabricating an expanded beam optical waveguide device 有权
标题翻译：制造扩展光束光波导器件的方法
公开(公告)号：US6162655A
公开(公告)日：2000-12-19
申请号：US228218
申请日：1999-01-11
申请人： John Evan Johnson , Leonard Jan-Peter Ketelsen , Janet L. Lentz , Charles H. Joyner , Sharon Kay Sputz
发明人： John Evan Johnson , Leonard Jan-Peter Ketelsen , Janet L. Lentz , Charles H. Joyner , Sharon Kay Sputz
IPC分类号： G02B6/12 , G02B6/122 , H01S5/026 , H01S5/10 , H01S5/20 , H01S5/50 , H01L21/302
CPC分类号： G02B6/1228 , G02B2006/12195 , H01S5/026 , H01S5/0265 , H01S5/1014 , H01S5/1032 , H01S5/2077 , H01S5/50
摘要： A method of fabricating an expanded beam optical waveguide device (e.g., a laser), comprises the steps of (a) forming a first semiconductor waveguide region having first and second sections of different thickness and an intermediate vertical taper section of varying thickness coupling the first and second sections to one another, the first waveguide region being effective to expand the size of the beam as it propagates from the first section to the second section, (b) forming a second semiconductor region (e.g., a laser active region) on the first waveguide region, (c) etching the second region so as to form an essentially vertical first surface of length A-B which extends obliquely across the propagation axis of the device, (d) forming a third semiconductor region (e.g., a cladding region) on the second region and over the first surface, and (e) etching an elongated mesa along the axis, the mesa extending through at least the second region and the first surface so as to form a second waveguide region having an oblique, essentially second vertical surface which has a length a-b
摘要翻译：一种制造扩展光束光波导器件（例如，激光器）的方法包括以下步骤：（a）形成具有不同厚度的第一和第二部分的第一半导体波导区域和具有变化厚度的中间垂直锥形部分，和第二部分，第一波导区域有效地在从第一部分传播到第二部分时扩大光束的尺寸，（b）在第二部分上形成第二半导体区域（例如，激光有源区域）（c）蚀刻所述第二区域以便形成长度为AB的基本上垂直的第一表面，所述第一表面倾斜延伸穿过所述器件的传播轴线，（d）在所述第一区域上形成第三半导体区域（例如包层区域）所述第二区域和所述第一表面之上，以及（e）沿着所述轴线蚀刻细长的台面，所述台面至少延伸穿过所述第二区域和所述第一表面，以形成第二波导区域具有斜长，基本上第二垂直表面，其具有长度ab

5. 发明授权

US07008805B2 Optical device and method of manufacture thereof 有权
标题翻译：光学装置及其制造方法
公开(公告)号：US07008805B2
公开(公告)日：2006-03-07
申请号：US10729090
申请日：2003-12-05
申请人： Leonard Jan-Peter Ketelsen , Abdallah Ougazzaden , Justin L. Peticolas
发明人： Leonard Jan-Peter Ketelsen , Abdallah Ougazzaden , Justin L. Peticolas
IPC分类号： H01L21/00
CPC分类号： H01L31/0203 , H01S5/2227 , H01S5/2275
摘要： The present invention provides an optical device and a method of manufacture thereof. In one embodiment, the method of manufacturing the optical device may include isolating an end of a first layer from a cladding layer located over a mesa structure that has been formed from a substrate. The end of the first layer may be isolated from the cladding layer by encapsulating the end between second and third layers located adjacent the mesa structure.
摘要翻译：本发明提供一种光学装置及其制造方法。在一个实施例中，制造光学器件的方法可以包括将第一层的端部与位于由衬底形成的台面结构之上的覆层进行隔离。第一层的端部可以通过将端部封装在位于台面结构附近的第二层和第三层之间而与包层隔离。

6. 发明授权

US06310902B1 Modulator for analog applications 失效
标题翻译：用于模拟应用的调制器
公开(公告)号：US06310902B1
公开(公告)日：2001-10-30
申请号：US09069109
申请日：1998-04-29
申请人： Richard Bendicks Bylsma , Leonard Jan-Peter Ketelsen , Sharon Kay Sputz
发明人： Richard Bendicks Bylsma , Leonard Jan-Peter Ketelsen , Sharon Kay Sputz
IPC分类号： H01S5026
CPC分类号： H01S5/0265 , G02F1/025 , G02F2001/0157
摘要： The invention in one aspect is an optical modulator which includes a waveguide region of semiconductor material. In order to achieve a gradual, essentially linear transfer function, the bandgap of the waveguide region is graded along the direction of light propogation or perpendicular thereto. In accordance with another aspect, the invention is an electroabsorption modulated laser where the portion of the waveguide region defining the modulator has a graded bandgap. In accordance with a method aspect, the waveguide region of the modulator is grown using a mask having a varying width to achieve the graded bandgap.
摘要翻译：本发明的一个方面是一种光学调制器，其包括半导体材料的波导区域。为了实现逐渐的，基本上线性的传递函数，波导区域的带隙沿光传播方向或与其垂直的方向分级。根据另一方面，本发明是电吸收调制激光器，其中限定调制器的波导区域的部分具有渐变带隙。根据方法方面，使用具有变化宽度的掩模来生长调制器的波导区域以实现渐变带隙。

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