公开(公告)号：US5040186A

公开(公告)日：1991-08-13

申请号：US564679

申请日：1990-08-07

Applicant: Ralph A. Logan ,  Tawee Tanbun-Ek ,  Henryk Temkin

Inventor： Ralph A. Logan ,  Tawee Tanbun-Ek ,  Henryk Temkin

IPC: H01L33/00 ,  H01L33/06 ,  H01S5/20 ,  H01S5/34 ,  H01S5/343

CPC classification number: H01L33/06 ,  B82Y20/00 ,  H01L33/0062 ,  H01S5/343 ,  H01S5/34313 ,  H01S5/3434 ,  H01S5/2004 ,  H01S5/2009 ,  H01S5/3406 ,  H01S5/3409 ,  H01S5/34306

Abstract: Disclosed is a graded index separate confinement heterostructure quantum well (GRIN-SCH QW) laser with continuously graded, substantially index matched InGaAsP confinement layer. The inventive device is well adapted for high power output in the wavelength region 1.2-1.68 .mu.m. In particular, it can readily be designed to have an output wavelength that makes it suitable as pump source for Er-doped optical fiber amplifiers. A method of manufacturing a laser according to the invention is also disclosed.

Abstract translation: 公开了具有连续梯度，基本上为指数匹配的InGaAsP限制层的分级指数分离限制异质结构量子阱（GRIN-SCH QW）激光器。 本发明的装置适用于在1.2-1.68μm的波长区域中的高功率输出。 特别地，它可以容易地设计成具有使其适合作为掺铒光纤放大器的泵浦源的输出波长。 还公开了根据本发明的制造激光器的方法。

公开(公告)号：US20060233213A1

公开(公告)日：2006-10-19

申请号：US11105912

申请日：2005-04-13

Applicant: Fow-Sen Choa ,  Tawee Tanbun-Ek

Inventor： Fow-Sen Choa ,  Tawee Tanbun-Ek

IPC: H01S3/03

CPC classification number: H01S5/4043 ,  B82Y20/00 ,  H01S5/026 ,  H01S5/1014 ,  H01S5/3095 ,  H01S5/34306 ,  H01S5/34373 ,  H01S5/4087 ,  H01S2301/04 ,  H01S2301/185

Abstract: A multi-quantum well optical waveguide structure comprises a plurality of active regions including quantum wells with different gain peak wavelengths to provide an ultra broadband optical gain spectrum. Two adjacent sets of active regions having a large band gap difference are connected by a tunneling injection layer to provide smooth electron transport. Single transverse-mode operation is obtained by narrowly tapering the width of the multi-quantum well optical waveguide from the center to the two ends. Higher-order modes are suppressed at the output of the tapered waveguide, even though the center waveguide portion supports higher-order modes. In this way, the multi- quantum well optical waveguide can be utilized for ultra broadband optical amplification using a single mode fiber.

Abstract translation: 多量子阱光波导结构包括多个有源区，包括具有不同增益峰值波长的量子阱，以提供超宽带光增益谱。 具有大带隙差的两组相邻的有源区通过隧道注入层连接，以提供平滑的电子传输。 通过将多量子阱光波导的宽度从中心狭窄地缩小到两端来获得单横模式操作。 即使中心波导部分支持高阶模式，高阶模也被抑制在锥形波导的输出处。 以这种方式，多量子阱光波导可以用于使用单模光纤的超宽带光放大。

公开(公告)号：US4953170A

公开(公告)日：1990-08-28

申请号：US366829

申请日：1989-06-15

Applicant: Ralph A. Logan ,  Tawee Tanbun-ek ,  Henryk Temkin

Inventor： Ralph A. Logan ,  Tawee Tanbun-ek ,  Henryk Temkin

IPC: H01L21/205 ,  H01L33/00 ,  H01L33/06 ,  H01S5/00 ,  H01S5/343

CPC classification number: H01L33/0062 ,  B82Y20/00 ,  H01L33/06 ,  H01S5/32 ,  H01S2304/04 ,  H01S5/34306 ,  H01S5/34313 ,  H01S5/3434

Abstract: Described is a method for forming epitaxial films comprising successive layers of at least ternary and at least quaternary III-V material grown by metalorganic vapor-phase epitaxy. Between the steps of growing successive layers, the growth chamber is first flushed, advantageously in successive steps using a pair of gaseous Group V hybrides, a few monolayers of binary III-V material are then deposited, and then the growth chamber is again flushed. As a result, interfaces are sharper and interfacial defects are reduced. Also described are quantum well lasers made according to the inventive method.

公开(公告)号：US07433567B2

公开(公告)日：2008-10-07

申请号：US11105912

申请日：2005-04-13

Applicant: Fow-Sen Choa ,  Tawee Tanbun-Ek

Inventor： Fow-Sen Choa ,  Tawee Tanbun-Ek

IPC: G02B6/10

CPC classification number: H01S5/4043 ,  B82Y20/00 ,  H01S5/026 ,  H01S5/1014 ,  H01S5/3095 ,  H01S5/34306 ,  H01S5/34373 ,  H01S5/4087 ,  H01S2301/04 ,  H01S2301/185

Abstract: A multi-quantum well optical waveguide structure comprises a plurality of active regions including quantum wells with different gain peak wavelengths to provide an ultra broadband optical gain spectrum. Two adjacent sets of active regions having a large band gap difference are connected by a tunneling injection layer to provide smooth electron transport. Single transverse-mode operation is obtained by narrowly tapering the width of the multi-quantum well optical waveguide from the center to the two ends. Higher-order modes are suppressed at the output of the tapered waveguide, even though the center waveguide portion supports higher-order modes. In this way, the multi-quantum well optical waveguide can be utilized for ultra broadband optical amplification using a single mode fiber.

Abstract translation: 多量子阱光波导结构包括多个有源区，包括具有不同增益峰值波长的量子阱，以提供超宽带光增益谱。 具有大带隙差的两组相邻的有源区通过隧道注入层连接，以提供平滑的电子传输。 通过将多量子阱光波导的宽度从中心狭窄地缩小到两端来获得单横模式操作。 即使中心波导部分支持高阶模式，高阶模也被抑制在锥形波导的输出处。 以这种方式，多量子阱光波导可以用于使用单模光纤的超宽带光放大。

公开(公告)号：US6166837A

公开(公告)日：2000-12-26

申请号：US444471

申请日：1999-11-22

Applicant: Laura Ellen Adams ,  Clyde George Bethea ,  Lars Erik Eskildsen ,  Gerald Nykolak ,  Roosevelt People ,  Tawee Tanbun-Ek

Inventor： Laura Ellen Adams ,  Clyde George Bethea ,  Lars Erik Eskildsen ,  Gerald Nykolak ,  Roosevelt People ,  Tawee Tanbun-Ek

IPC: H04B10/02 ,  H01S5/00 ,  H01S5/042 ,  H01S5/062 ,  H01S5/0625 ,  H01S5/125 ,  H04B10/18 ,  H04B10/28 ,  H04J14/02

CPC classification number: H01S5/06258 ,  H01S5/0623 ,  H01S5/0625

Abstract: A tunable semiconductor laser comprises a gain section having an MQW active region, a uniform pitch grating DFB region, and first waveguide. A composite reflector, including a second MQW region and a second waveguide, forms a cavity resonator with the DFB region. A tuning voltage applied to the composite reflector induces refractive index changes, thereby allowing the center wavelength to be altered. A dither signal applied the composite reflector broadens the spectrum of the laser output, thereby reducing SBS in fiber optic systems

Abstract translation: 可调谐半导体激光器包括具有MQW有源区，均匀间距光栅DFB区和第一波导的增益部。 包括第二MQW区域和第二波导的复合反射器与DFB区域形成空腔谐振器。 施加到复合反射器的调谐电压引起折射率变化，从而允许改变中心波长。 施加复合反射器的抖动信号使激光输出的频谱变宽，从而减少光纤系统中的SBS

公开(公告)号：US6108362A

公开(公告)日：2000-08-22

申请号：US954305

申请日：1997-10-17

Applicant: Laura Ellen Adams ,  Clyde George Bethea ,  Wei-Chiao Fang ,  Gerald Nykolak ,  Roosevelt People ,  Arthur Mike Sergent ,  Tawee Tanbun-Ek ,  Won-Tien Tsang

Inventor： Laura Ellen Adams ,  Clyde George Bethea ,  Wei-Chiao Fang ,  Gerald Nykolak ,  Roosevelt People ,  Arthur Mike Sergent ,  Tawee Tanbun-Ek ,  Won-Tien Tsang

IPC: H01S3/10 ,  H01S5/0625 ,  H01S5/10 ,  H01S5/00 ,  H01S3/08

CPC classification number: H01S5/06258 ,  H01S5/10

Abstract: A tunable semiconductor laser comprises a gain section having an MQW active region, a uniform pitch grating DFB region, and first waveguide. A composite reflector, including a second MQW region and a second waveguide, forms a cavity resonator with the DFB region. A voltage applied to the composite reflector induces a quantum confined stark effect, thereby allowing the wavelength to be altered. In one embodiment, the current drive to the active region and the shape of the first waveguide (e.g., a raised-sine function) are mutually adapted so that N longitudinal modes have essentially the same threshold gain and so that the DFB region spanned by the first waveguide is segmented into N zones, each zone providing optical feedback at a different wavelength corresponding to a different longitudinal mode.

Abstract translation: 可调谐半导体激光器包括具有MQW有源区，均匀间距光栅DFB区和第一波导的增益部。 包括第二MQW区域和第二波导的复合反射器与DFB区域形成空腔谐振器。 施加到复合反射器的电压引起量子限制的斯塔克效应，从而允许改变波长。 在一个实施例中，对有源区域的当前驱动和第一波导的形状（例如，升高的正弦函数）相互适应，使得N个纵向模式具有基本上相同的阈值增益，并且使得由 第一波导被分割成N个区域，每个区域提供对应于不同纵向模式的不同波长的光学反馈。

公开(公告)号：US5991323A

公开(公告)日：1999-11-23

申请号：US954022

申请日：1997-10-20

Applicant: Laura Ellen Adams ,  Clyde George Bethea ,  Gerald Nykolak ,  Roosevelt People ,  Tawee Tanbun-Ek

Inventor： Laura Ellen Adams ,  Clyde George Bethea ,  Gerald Nykolak ,  Roosevelt People ,  Tawee Tanbun-Ek

IPC: H04B10/02 ,  H01S5/00 ,  H01S5/02 ,  H01S5/026 ,  H01S5/06 ,  H01S5/0625 ,  H01S5/12 ,  H01S5/125 ,  H04B10/155 ,  H04B10/18 ,  H01S3/19 ,  H01S3/00 ,  H01S3/08 ,  H01S3/10

CPC classification number: H01S5/0265 ,  H01S5/06258 ,  H04B10/25137 ,  H04B10/503 ,  H04B10/58 ,  H01S5/1243

Abstract: A tunable semiconductor laser comprises a gain section having an MQW active region, a uniform pitch grating DFB region, and first waveguide. A composite reflector, including a second MQW region and a second waveguide, forms a cavity resonator with the DFB region. A tuning voltage applied to the composite reflector induces a quantum confined stark effect, thereby allowing the center wavelength to be altered. A pre-chirp signal applied the composite reflector reduces signal distortion in fiber optic systems.

Abstract translation: 可调谐半导体激光器包括具有MQW有源区，均匀间距光栅DFB区和第一波导的增益部。 包括第二MQW区域和第二波导的复合反射器与DFB区域形成空腔谐振器。 施加到复合反射器的调谐电压引起量子限制的斯塔克效应，从而允许改变中心波长。 施加复合反射镜的前啁啾信号减少光纤系统中的信号失真。

公开(公告)号：US5721796A

公开(公告)日：1998-02-24

申请号：US668196

申请日：1996-06-21

Applicant: Miriam R. de Barros ,  Lars Erik Eskildsen ,  Gerald Nykolak ,  Ashish Madhukar Vengsarkar ,  Torben N. Nielsen ,  Tawee Tanbun-Ek

Inventor： Miriam R. de Barros ,  Lars Erik Eskildsen ,  Gerald Nykolak ,  Ashish Madhukar Vengsarkar ,  Torben N. Nielsen ,  Tawee Tanbun-Ek

IPC: G02B6/293 ,  G02F1/313 ,  H04B10/02 ,  H04J14/00 ,  H04J14/02 ,  H04Q11/00 ,  G02B6/34

CPC classification number: H04Q11/0005 ,  H04J14/0212 ,  H04J14/0213 ,  H04Q2011/0009 ,  H04Q2011/0015 ,  H04Q2011/0022 ,  H04Q2011/0026 ,  H04Q2011/0039

Abstract: In accordance with the invention a multiwavelength optical fiber cross connect is provided with an active all-fiber optical router for multiplexing/demultiplexing. The router is comprised of one electronic component--a phase controller--and four fiber components: 1) a fiber directional coupler, 2) a fiber reflective grating filter, 3) a fiber tap, and 4) a fiber phase modulator. The application describes how to make optical routers from these components ranging in complexity from a single wavelength drop router to an N-port, N-wavelength router for add/drop multiplexing. The application also describes how optical wavelength routers can be combined to create optical fiber Cross connect (OXCs), ranging in complexity from 2.times.2 single wavelength OXCs to NXN, M-wavelength OXCs.

Abstract translation: 根据本发明，多波长光纤交叉连接器设置有用于复用/解复用的有源全光纤光路由器。 路由器由一个电子部件（一个相位控制器）和四个光纤部件组成：1）光纤定向耦合器，2）光纤反射光栅滤光器，3）光纤抽头，以及4）光纤相位调制器。 该应用程序描述了如何使这些组件的光路由器的复杂性从单个波长丢弃路由器到N端口，N波长路由器进行分插复用。 该应用还描述了光波长路由器如何组合以创建光纤交叉连接（OXC），其范围从2x2单波长OXC到NXN，M波长OXC。

公开(公告)号：US07031612B2

公开(公告)日：2006-04-18

申请号：US09907283

申请日：2001-07-17

Applicant: Kang-Yih Liou ,  Tawee Tanbun-Ek ,  Won-Tien Tsang ,  Liang David Tzeng

Inventor： Kang-Yih Liou ,  Tawee Tanbun-Ek ,  Won-Tien Tsang ,  Liang David Tzeng

IPC: H04B10/00

CPC classification number: H04B10/40

Abstract: An optical transponder/transceiver for intermediate range (e.g., 10-50 km) optical communication applications utilizes an electroabsorption modulated laser for the transmitting device. Preferably, the laser operations at a wavelength of approximately 1310 nm and comprises an electroabsorption modulated Fabry-Perot laser.

公开(公告)号：US06597718B2

公开(公告)日：2003-07-22

申请号：US09907246

申请日：2001-07-17

Applicant: Tawee Tanbun-Ek ,  Won-Tien Tsang ,  Liang David Tzeng

Inventor： Tawee Tanbun-Ek ,  Won-Tien Tsang ,  Liang David Tzeng

IPC: H01S500

CPC classification number: A61F2/82 ,  A61F2210/0052 ,  A61F2250/0067 ,  H01S5/0265 ,  H01S5/106 ,  H01S5/2077 ,  H01S5/2272

Abstract: An electroabsorption modulated laser (EML) is formed to include a Fabry-Perot lasing section, in place of the conventional DFB lasing section. When operated at a wavelength of 1310 nm, the wider spectral bandwidth of the FP device (containing several longitudinal modes) is of no concern, since 1310 nm is the zero dispersion wavelength of most conventional transmission fibers. A selective area growth process is used to simultaneously form the MQW active regions of both the FP and EA sections of the EML device, and an isolation trench may be formed between the sections to reduce the effects of electrical crosstalk.