公开(公告)号：US20150078751A1

公开(公告)日：2015-03-19

申请号：US14551353

申请日：2014-11-24

Applicant: Applied Optoelectronics, Inc.

Inventor： Jun Zheng ,  Klaus Alexander Anselm ,  Huanlin Zhang ,  Dion McIntosh-Dorsey

IPC: H04B10/50 ,  H04J14/02 ,  H04B10/27 ,  H01S5/06

CPC classification number: H01S5/1209 ,  H01S5/02415 ,  H01S5/0612 ,  H01S5/06258 ,  H01S5/1092 ,  H01S5/4087

Abstract: A tunable laser with multiple in-line sections including sampled gratings generally includes a semiconductor laser body with a plurality of in-line laser sections configured to be driven independently to generate laser light at a wavelength within a different respective wavelength range. Sampled gratings in the respective in-line sections have the same grating period and a different sampling period to produce the different wavelengths. The wavelength of the light generated in the respective laser sections may be tuned, in response to a temperature change, to a channel wavelength within the respective wavelength range. By selectively generating light in one or more of the laser sections, one or more channel wavelengths may be selected for lasing and transmission. By using sampled gratings with the same grating period in the multiple in-line sections, the multiple section tunable laser may be fabricated more easily.

Abstract translation: 具有包括采样光栅的多个在线部分的可调激光器通常包括半导体激光器主体，其具有被配置为独立驱动的多个在线激光部分，以产生波长在不同的相应波长范围内的激光。 相应的在线部分中的采样光栅具有相同的光栅周期和不同的采样周期以产生不同的波长。 在相应的激光部分中产生的光的波长可以响应于温度变化被调谐到相应波长范围内的通道波长。 通过选择性地在一个或多个激光部分中产生光，可以选择一个或多个信道波长用于激光和透射。 通过在多个在线部分中使用具有相同光栅周期的采样光栅，可以更容易地制造多段可调谐激光器。

公开(公告)号：US20040218656A1

公开(公告)日：2004-11-04

申请号：US10428390

申请日：2003-05-02

Applicant: APPLIED OPTOELECTRONICS, INC.

Inventor： Chung-Yung Wang ,  Hung-Lun Chang

IPC: H01S003/08

CPC classification number: G02B6/4292 ,  G02B6/4206 ,  H01S5/02284

Abstract: An assembly for improved alignment of a laser for generating laser light with an optical fiber having an end section terminating in a light-receiving end. A laser housing has a base and substantially cylindrical housing walls mounted at a bottom portion to the base. The laser can be mounted on the base. The substantially cylindrical internal surface of the cylindrical housing walls have internal threads at a top portion. The internal threads have a minor diameter and a major diameter. An annular ferrule housing has a substantially cylindrical through-hole with an inner diameter sufficient to receive a fiber ferrule which has the end section of the fiber disposed therein. The ferrule housing further has an axially tapered external surface having external threads which are threadably compatible with the internal threads. The major diameter of the external threads decreases monotonically from a first major diameter at a top portion of the external surface to a comparatively smaller second major diameter at a bottom portion of the external surface. The first major diameter of the external threads is larger, and the second major diameter of the external threads is smaller, than the minor diameter of the internal threads.

Abstract translation: 一种用于改善用于产生激光的激光器与具有端部在光接收端端部的光纤的对准的组件。 激光器壳体具有安装在底部的基部和基本圆柱形的壳体壁。 激光可以安装在基座上。 圆柱形壳体壁的基本上圆柱形的内表面在顶部具有内螺纹。 内螺纹具有小直径和大直径。 环形套圈壳体具有基本上圆柱形的通孔，其内径足以容纳纤维套管，纤维套管的端部设置在其中。 套圈外壳还具有轴向锥形的外表面，其具有与内螺纹螺纹连接的外螺纹。 外螺纹的主直径从外表面的顶部处的第一大直径到外表面的底部处的相对较小的第二大直径单调地减小。 外螺纹的第一大直径较大，外螺纹的第二大直径小于内螺纹的小直径。

公开(公告)号：US20030213950A1

公开(公告)日：2003-11-20

申请号：US10463067

申请日：2003-06-17

Applicant: APPLIED OPTOELECTRONICS, INC.

Inventor： Wen-Yen Hwang

IPC: H01L029/06

CPC classification number: H01S5/0224 ,  H01L21/76256 ,  H01L33/0079 ,  H01L33/105 ,  H01S5/0216 ,  H01S5/0217 ,  H01S5/183 ,  H01S2301/173 ,  Y10T428/12493 ,  Y10T428/12528 ,  Y10T428/12674 ,  Y10T428/31678

Abstract: A substrate including a base substrate, an interfacial bonding layer disposed on the base substrate, and a thin film adaptive crystalline layer disposed on the interfacial bonding layer. The interfacial bonding layer is solid at room temperature, and is in liquid-like form when heated to a temperature above room temperature. The interfacial bonding layer may be heated during epitaxial growth of a target material system grown on the thin film layer to provide the thin film layer with lattice flexibility to adapt to the different lattice constant of the target material system. Alternatively, the thin film layer is originally a strained layer having a strained lattice constant different from that of the target material system but with a relaxed lattice constant very close to that of the target material system, which lattice constant is relaxed to its relaxed value by heating the interfacial bonding layer after the thin film layer is removed from the first semiconductor substrate, so that the thin film layer has an adjusted lattice constant equal to its unstrained, relaxed value and very close to the lattice constant of the target material system.

Abstract translation: 包括基底基板，设置在基底基板上的界面粘合层和设置在界面粘接层上的薄膜自适应晶体层的基板。 界面接合层在室温下为固体，当加热至室温以上时呈液状。 可以在生长在薄膜层上的目标材料体系的外延生长期间加热界面结合层，以提供具有晶格柔性的薄膜层，以适应目标材料体系的不同晶格常数。 或者，薄膜层最初是具有与目标材料体系不同的应变晶格常数的应变层，但具有非常接近目标材料体系的松弛晶格常数，该晶格常数通过 在从第一半导体衬底去除薄膜层之后加热界面结合层，使得薄膜层具有等于其未约束，松弛值并且非常接近靶材系统的晶格常数的调整晶格常数。

公开(公告)号：US20030185267A1

公开(公告)日：2003-10-02

申请号：US10109288

申请日：2002-03-28

Applicant: APPLIED OPTOELECTRONICS, INC.

Inventor： Wen-Yen Hwang ,  Klaus Alexander Anselm ,  Jun Zheng

IPC: H01S003/08

CPC classification number: H01S5/18358 ,  H01S5/1833 ,  H01S5/18338 ,  H01S5/18369 ,  H01S5/205 ,  H01S2301/166

Abstract: A surface-emitting laser, such as a VCSEL, for generating single-transverse mode laser light at a lasing wavelength, has a first mirror and a second mirror positioned so as to define a laser cavity therebetween, and a semiconductor active region disposed between the first and second mirrors for amplifying, by stimulated emission, light in the laser cavity at the lasing wavelength. An annular antiguide structure is disposed within the laser cavity and between the active region and one of the first and second mirrors, the annular antiguide structure comprising an antiguide material and having a central opening, the central opening comprising a second material having an index of refraction for light at the lasing wavelength smaller than that of the antiguide material, whereby the annular antiguide structure causes preferential antiguiding of higher order transverse lasing modes in the laser cavity.

Abstract translation: 用于产生激光波长的单横模式激光的诸如VCSEL的表面发射激光器具有定位成在其间限定激光腔的第一反射镜和第二反射镜，以及位于 第一和第二镜，用于通过受激发射在激光波长处放大激光腔中的光。 环形防水结构设置在激光腔内并且在有源区域与第一和第二反射镜之一之间，环形防水结构包括防护材料并具有中心开口，中心开口包括具有折射率的第二材料 对于激光波长小于抗蚀剂材料的波长的光，由此环形抗蚀剂结构在激光腔中引起较高阶横向激光模式的优先防御。

公开(公告)号：US20030053511A1

公开(公告)日：2003-03-20

申请号：US10198373

申请日：2002-07-18

Applicant: APPLIED OPTOELECTRONICS, INC.

Inventor： James N. Baillargeon ,  Wen-Yen Hwang ,  Klaus Alexander Anselm ,  Chih-Hsiang Lin

IPC: H01S003/10 ,  H01S003/04 ,  H01S003/08 ,  H01S003/082

CPC classification number: H01S3/1303 ,  H01S3/131 ,  H01S3/1392 ,  H01S5/0687

Abstract: A multiple reflectivity band reflector (MRBR) includes a stack of dielectric layers, arranged so that the reflector has a reflectivity profile comprising a plurality of reflectivity bands, e.g. at least first and second wavelength bands with reflectivity above a lasing threshold reflectivity, separated by a third wavelength band between the first and second wavelength bands having reflectivity below the lasing threshold reflectivity. A laser having at least a first mirror and an MRBR as the second mirror has a laser cavity, at least a portion of which is defined by the first mirror and the MRBR. An active region located within the laser cavity contains a material that is capable of stimulated emission at one or more wavelengths in the first and second wavelength bands. The gain spectrum of the laser is adjusted to select one of the first and second wavelength bands, thereby providing for lasing at a wavelength within the selected wavelength band. The laser may be, e.g., a monolithic VCSEL or a one-section or two-section external-cavity VECSEL having the MRBR as one of its cavity mirrors.

Abstract translation: 多反射带反射器（MRBR）包括一叠电介质层，其布置成使得反射器具有包括多个反射带的反射率分布， 具有高于激光阈值反射率的反射率的至少第一和第二波长带，其具有低于激光阈值反射率的反射率的第一和第二波长带之间的第三波长带分隔开。 具有至少第一反射镜和MRBR作为第二反射镜的激光器具有激光腔，其至少一部分由第一反射镜和MRBR限定。 位于激光腔内的有源区域包含能够在第一和第二波长带中的一个或多个波长处受激发射的材料。 调整激光器的增益光谱以选择第一和第二波长带中的一个，从而提供在所选波长带内的波长处的激光。 激光器可以是例如单片VCSEL或具有MRBR作为其腔镜之一的单段或两段外腔VECSEL。

公开(公告)号：US20030043866A1

公开(公告)日：2003-03-06

申请号：US10198528

申请日：2002-07-18

Applicant: APPLIED OPTOELECTRONICS, INC.

Inventor： James N. Baillargeon ,  Wen-Yen Hwang ,  Klaus Alexander Anselm ,  Chih-Hsiang Lin

IPC: H01S003/13 ,  H01S003/08 ,  G02B005/28

CPC classification number: H01S3/1303 ,  H01S3/131 ,  H01S3/1392 ,  H01S5/0687

Abstract: A monitored laser system has a laser having a first mirror; an exit mirror, at least a portion of a laser cavity defined by the first mirror and the exit mirror; and an active region located in the laser cavity, the active region containing a material that is capable of stimulated emission at one or more wavelengths of laser light within a tuning range of the laser. A multiple reflectivity band reflector (MRBR) is coupled to at least a portion of laser light emitted from the laser and transmits filtered laser light. The MRBR has a plurality of layers of material arranged in parallel such that the reflector has a plurality of reflectivity peaks within the tuning range, each reflectivity peak separated from neighboring reflectivity peak by a reflectivity trough having a trough minimum, said reflectivity peaks characterized by a peak profile and said trough minima between said reflectivity peaks characterized by a trough profile. At least one of the peak and trough profiles has a substantially non-constant relationship of wavelength to reflectivity. A first photodiode coupled to at least a portion of the filtered laser light produces an output based on the amount of light received. The emitted wavelength of the laser is adjusted toward a desired wavelength within the tuning range based at least in part on the output of the first photodiode.

Abstract translation: 所监视的激光系统具有具有第一反射镜的激光器; 出射镜，由第一反射镜和出射镜限定的激光腔的至少一部分; 以及位于所述激光腔中的有源区域，所述有源区域包含能够在所述激光器的调谐范围内的激光的一个或多个波长处受激发射的材料。 多反射带式反射器（MRBR）耦合到从激光器发射的激光的至少一部分并透射滤波的激光。 MRBR具有平行布置的多层材料，使得反射器在调谐范围内具有多个反射率峰值，每个反射率峰值与相邻反射率峰值分离具有波谷最小值的反射率波谷，所述反射率峰值以 在所述反射率峰值之间的峰值曲线和所述的谷值最小值，其特征在于波谷曲线。 峰值和谷值曲线中的至少一个具有波长与反射率之间基本上不恒定的关系。 耦合到滤波的激光的至少一部分的第一光电二极管基于所接收的光量产生输出。 至少部分地基于第一光电二极管的输出，在调谐范围内将激光的发射波长调节到期望的波长。