公开(公告)号：WO2018226693A1

公开(公告)日：2018-12-13

申请号：PCT/US2018/036057

申请日：2018-06-05

Applicant: APPLIED OPTOELECTRONICS, INC.

Inventor： HO, I-Lung, ,  PENG, Luohan, ,  LIN, Kai-Sheng, ,  MARENTES, Elsie,

IPC: G02B6/38 ,  G02B6/42 ,  G02B6/125 ,  H04B10/25 ,  H04B10/40 ,  H04B10/50

Abstract: Techniques for flexible coupling between an optical coupling receptacle/port of an optical transceiver housing and optical components within the same are disposed. In an embodiment, an optical transceiver housing includes an intermediate fiber with a first end optically coupled to an optical coupling port and a second end optically coupled to a multiplexer/de-multiplexer device, e.g., an arrayed waveguide grating (AWG) device, PLC splitter, and so on. The intermediate fiber may be routed in the transceiver housing in a manner that and the radius of the bends may be optimized to reduce fiber bending losses. The techniques herein are equally applicable to both ROSA and TOSA modules and may be utilized to achieve flexible coupling for multi-channel transceiver devices.

公开(公告)号：WO2018044998A1

公开(公告)日：2018-03-08

申请号：PCT/US2017/049311

申请日：2017-08-30

Applicant: APPLIED OPTOELECTRONICS, INC.

Inventor： HO, I-Lung ,  WANG, Chong ,  LIANG, YongXuan

IPC: H04B10/572 ,  H04B10/50 ,  G02B6/42 ,  H04J14/02

CPC classification number: H04B10/572 ,  G02B6/29365 ,  G02B6/2938 ,  G02B6/4249 ,  G02B6/428 ,  H01S5/12 ,  H01S5/4087 ,  H04B10/40 ,  H04B10/503 ,  H04J14/02 ,  H04J14/0227

Abstract: Techniques are disclosed for providing relatively short distances between multi-channel transmitter optical subassemblies (TOSAs) and associated transmit connecting circuit in order to reduce losses due to signal propagation delays, also sometimes referred to as signal flight time delays. In an embodiment, a TOSA includes a plurality of laser assemblies disposed along a same sidewall of the TOSA along a longitudinal axis. The TOSA may be disposed within an optical transceiver housing in a transverse orientation, whereby a longitudinal center line of the multi-channel TOSA is substantially perpendicular to the longitudinal axis of the optical transceiver housing. The TOSA may be positioned adjacent an end of the optical transceiver housing having a transmit connecting circuit. Thus each of the plurality of laser assemblies may be positioned at a relatively short distance, e.g., 120 microns or less, away from the transmit connecting circuit.

Abstract translation: 公开了用于在多信道发射机光学子组件（TOSA）和相关联的发射连接电路之间提供相对短的距离的技术，以便减少由于信号传播延迟造成的损耗，有时也称为信号飞行时间 延迟。 在一个实施例中，TOSA包括沿着纵向轴线沿着TOSA的相同侧壁布置的多个激光器组件。 TOSA可以以横向取向布置在光学收发器外壳内，由此多通道TOSA的纵向中心线基本上垂直于光学收发器外壳的纵向轴线。 TOSA可以定位在具有发射连接电路的光学收发器壳体的端部附近。 因此，多个激光器组件中的每一个可以定位在离发射连接电路相对较短的距离处，例如120微米或更小。

公开(公告)号：WO2018035438A1

公开(公告)日：2018-02-22

申请号：PCT/US2017/047569

申请日：2017-08-18

Applicant: APPLIED OPTOELECTRONICS, INC.

Inventor： LIN, Kai-Sheng, ,  CAI, Ziliang ,  CHEN, Stella Liang,

IPC: G02B6/12 ,  G02B6/42 ,  G02B6/293

CPC classification number: G02B6/421 ,  G02B6/12019 ,  G02B6/29329 ,  G02B6/2938 ,  G02B6/4215 ,  G02B6/4246 ,  G02B6/4261 ,  G02B6/4281 ,  G02B6/4292

Abstract: Techniques for reducing optical fiber bending loss in an optical transceiver are disclosed. In an embodiment, a small form-factor (SFF) optical transceiver housing includes a demultiplexer device, such as an arrayed waveguide grating (AWG) device, having a longitudinal center line that is offset laterally by a distance Doffset from the longitudinal center line of the SFF optical transceiver housing. The lateral offset distance Doffset may advantageously enable an intermediate optical fiber coupling the demultiplexer with an optical coupling receptacle, such as an LC connector, to be routed within the SFF optical transceiver housing in a manner that avoids introducing bends that are less than a minimum bending radius associated with the intermediate optical fiber cable. Thus some embodiments of the present disclosure enable greater tolerance when routing an intermediate optical fiber within housings that would otherwise introduce bending loss by virtue of their constrained dimensions.

Abstract translation: 公开了用于减少光收发器中的光纤弯曲损耗的技术。 在一个实施例中，小形状因数（SFF）光学收发器外壳包括解复用器装置，诸如阵列波导光栅（AWG）装置，其具有纵向中心线，该纵向中心线横向偏离距离纵向中心线 SFF光收发器外壳。 横向偏移距离Doffset可以有利地使得将解复用器与诸如LC连接器的光耦合插座耦合的中间光纤能够以避免引入小于最小弯曲的弯曲的方式布线在SFF光收发器外壳内 与中间光缆相关联的半径。 因此，本公开的一些实施例在将壳体内的中间光纤布线时能够产生更大的容差，否则由于其约束尺寸会引起弯曲损耗。

公开(公告)号：WO2018009853A1

公开(公告)日：2018-01-11

申请号：PCT/US2017/041178

申请日：2017-07-07

Applicant: APPLIED OPTOELECTRONICS, INC.

Inventor： LIN, Kaisheng, ,  LIAO, Hao-Hsiang ,  LIANG, Yong-Xuan

IPC: G01J1/02 ,  H01S5/022 ,  H04B10/40 ,  H04B10/58

CPC classification number: H04B10/40

Abstract: In accordance with an embodiment, a transmitter optical subassembly (TOSA) having one or more recessed mounting regions is disclosed in order to decrease the overall footprint of the TOSA within an optical transceiver housing. The TOSA includes a housing having at least a first sidewall and a second sidewall disposed on opposite sides of the housing relative to each other. The housing further includes a first step portion defined by the first sidewall and a first recessed mounting region extending from about the first step portion along the longitudinal axis towards the second end. The first recessed mounting region is defined by an external surface of the first sidewall that is offset from a surface defining the first step portion by a first offset distance. The first recessed mounting region includes at least one sidewall opening to couple to optical component assemblies.

Abstract translation: 根据一个实施例，公开了具有一个或多个凹入安装区域的发射器光学子组件（TOSA），以便减小光学收发器壳体内的TOSA的总体占用面积。 TOSA包括壳体，壳体具有至少第一侧壁和第二侧壁，所述第一侧壁和第二侧壁相对于彼此布置在壳体的相对侧上。 壳体还包括由第一侧壁限定的第一台阶部分和从第一台阶部分大致沿着纵向轴线朝向第二端延伸的第一凹入安装区域。 第一凹进安装区域由第一侧壁的外表面限定，第一侧壁的外表面从限定第一台阶部分的表面偏移第一偏移距离。 第一凹入安装区域包括至少一个侧壁开口以耦合到光学部件组件。

公开(公告)号：WO2016160898A1

公开(公告)日：2016-10-06

申请号：PCT/US2016/024860

申请日：2016-03-30

Applicant: APPLIED OPTOELECTRONICS, INC.

Inventor： ZHENG, Jun, ,  HO, I-Lung, ,  WANG, Yi,

IPC: G02B6/28

CPC classification number: G02B6/4212 ,  G02B6/12019 ,  G02B6/29304 ,  G02B6/2938 ,  G02B6/425 ,  G02B6/4274

Abstract: A system is provided for improved coupling of photodetectors to optical demultiplexer outputs, for example an arrayed waveguide grating (AWG), using a refractive index matched material. In one embodiment, the system may include an optical demultiplexer including multiple optical outputs corresponding to multiple signal channels and a photodetector array including a plurality of photodiodes aligned with the multiple optical outputs. The system may also include an epoxy disposed within a gap between each of the photodiodes and each of the corresponding optical outputs of the optical demultiplexer. The epoxy may be configured to provide an index of refraction that is matched to the optical demultiplexer.

Abstract translation: 提供了一种用于改进光电探测器与光解复用器输出（例如使用折射率匹配材料的阵列波导光栅（AWG））耦合的系统。 在一个实施例中，系统可以包括光解复用器，其包括对应于多个信号通道的多个光输出和包括与多个光输出对准的多个光电二极管的光电检测器阵列。 该系统还可以包括设置在每个光电二极管之间的间隙中的环氧树脂和光解复用器的每个对应的光输出。 环氧树脂可以被配置为提供与光解复用器匹配的折射率。

公开(公告)号：WO2016154263A1

公开(公告)日：2016-09-29

申请号：PCT/US2016/023703

申请日：2016-03-23

Applicant: APPLIED OPTOELECTRONICS, INC.

Inventor： HO, I-Lung, ,  WANG, Chong, ,  PENG, Luohan

IPC: H04B10/40 ,  G02B6/00 ,  G02B6/36

CPC classification number: H01L31/0203 ,  G02B6/00 ,  H01L2224/48091 ,  H04B10/40 ,  H01L2924/00014

Abstract: A multi-channel receiver optical subassembly (ROSA) such as an arrayed waveguide grating (AWG), with outputs directly optically coupled to respective photodetectors such as photodiodes. In one embodiment, the photodetectors are mounted on a photodetector mounting bar that includes a multiple conductive photodetector pads (PD pads). Each of the PD pads may be configured to receive a photodetector, and the PD pads are electrically isolated from ground such that the photodetectors are floating. The photodetector bar further includes multiple conductive transimpedance amplifier pads (TIA pads). Each of the TIA pads may be configured to receive a TIA, associated with one of the photodetectors, and to be electrically coupled to one or more ground ports of the TIA. The TIA pads are electrically connected to a common ground shared be each of said TIAs.

Abstract translation: 诸如阵列波导光栅（AWG）的多通道接收机光学子组件（ROSA），其具有直接光耦合到诸如光电二极管的各个光电探测器的输出。 在一个实施例中，光电检测器安装在包括多个导电光电检测器焊盘（PD焊盘）的光电检测器安装杆上。 每个PD焊盘可以被配置为接收光电检测器，并且PD焊盘与地电隔离，使得光电探测器浮动。 光电检测器条还包括多个导电跨阻放大器焊盘（TIA焊盘）。 TIA焊盘中的每一个可以被配置为接收与一个光电检测器相关联的TIA，并且电连接到TIA的一个或多个接地端口。 TIA焊盘电连接到共用的共用地址，分别为每个所述的TIA。

公开(公告)号：WO2016149607A1

公开(公告)日：2016-09-22

申请号：PCT/US2016/023106

申请日：2016-03-18

Applicant: APPLIED OPTOELECTRONICS, INC.

Inventor： ZHENG, Jun, ,  MURRY, Stefan J., ,  ANSELM, Klaus Alexander,

IPC: H01S3/105 ,  H01S3/1055

CPC classification number: H01S5/06256 ,  H01S5/02415 ,  H01S5/0287 ,  H01S5/06258 ,  H01S5/0687 ,  H01S5/124 ,  H01S5/4012 ,  H01S5/4087

Abstract: A parallel cavity tunable laser generally includes a semiconductor laser body defining a plurality of parallel laser cavities with a common output. Each of the parallel laser cavities is configured to be driven independently to generate laser light at a wavelength within a different respective wavelength range. The wavelength of the light generated in each of the laser cavities may be tuned, in response to a temperature change, to a channel wavelength within the respective wavelength range. The laser light generated in each selected one of the laser cavities is emitted from the common output at a front facet of the laser body. By selectively generating light in one or more of the laser cavities, one or more channel wavelengths may be selected for lasing and transmission.

Abstract translation: 平行腔可调谐激光器通常包括限定具有共同输出的多个平行激光腔的半导体激光器体。 每个平行激光腔被配置为独立地驱动以产生波长在不同的相应波长范围内的激光。 在每个激光腔中产生的光的波长可以响应于温度变化而被调谐到相应波长范围内的通道波长。 在每个所选择的一个激光腔中产生的激光在激光体的前面从公共输出发射。 通过选择性地在一个或多个激光腔中产生光，可以选择一个或多个沟道波长用于激光和透射。

公开(公告)号：WO2015200420A1

公开(公告)日：2015-12-30

申请号：PCT/US2015/037316

申请日：2015-06-24

Applicant: APPLIED OPTOELECTRONICS, INC.

Inventor： WANG, Yi, ,  ZHANG, Huanlin,

IPC: H04J14/00 ,  H04J14/02

CPC classification number: H04B10/58 ,  H04B10/40 ,  H04B10/504

Abstract: An optical transceiver generally includes an injection locked (IL) laser configured to generate a transmit (Tx) optical signal for transmission over an optical network and a laser driver circuit configured to modulate the IL laser based on a Tx data signal. The Tx data signal may be provided to the optical transceiver for transmission over the optical network. The Tx data signal may include a crossing point level associated with a transition between a first signal level and a second signal level. The optical transceiver may also include a crossing point control circuit configured to apply distortion to the Tx data signal, the distortion to increase the crossing point level.

Abstract translation: 光收发器通常包括被配置为产生用于通过光网络传输的发射（Tx）光信号的注入锁定（IL）激光器和被配置为基于Tx数据信号来调制IL激光器的激光器驱动器电路。 Tx数据信号可以被提供给光收发器以在光网络上传输。 Tx数据信号可以包括与第一信号电平和第二信号电平之间的转变相关联的交叉点电平。 光收发器还可以包括交叉点控制电路，其被配置为向Tx数据信号施加失真，该失真增加了交叉点电平。

公开(公告)号：WO2012096750A3

公开(公告)日：2012-12-27

申请号：PCT/US2011064870

申请日：2011-12-14

Applicant: APPLIED OPTOELECTRONICS INC ,  ZHENG JUN ,  WANG YI ,  PENG CHUAN

Inventor： ZHENG JUN ,  WANG YI ,  PENG CHUAN

IPC: H04B10/04

CPC classification number: H04B10/58 ,  H04B10/2575

Abstract: A distortion compensation circuit with frequency detection may be used with one or more non-linear elements, such as a laser, to compensate for frequency-dependent distortion generated by the non-linear element(s), for example, in broadband multichannel RF applications. Embodiments of the distortion compensation circuit may include a frequency detector circuit that detects changes in frequency loading conditions in the distortion compensation circuit such that distortion compensation may be adjusted to compensate for distortion under different frequency loading conditions. In a multichannel RF system with multiple channel operation modes, for example, the frequency detector circuit may detect changes in the frequency loading condition as a result of changing operation modes.

Abstract translation: 具有频率检测的失真补偿电路可以与一个或多个非线性元件（例如激光器）一起使用，以补偿非线性元件（例如在宽带多通道RF应用中）产生的与频率相关的失真 。 失真补偿电路的实施例可以包括频率检测器电路，其检测失真补偿电路中的频率负载状况的变化，使得可以调整失真补偿以补偿不同频率负载条件下的失真。 在具有多信道操作模式的多信道RF系统中，例如，频率检测器电路可以检测作为改变操作模式的结果的频率加载条件的改变。

公开(公告)号：WO2012096750A2

公开(公告)日：2012-07-19

申请号：PCT/US2011/064870

申请日：2011-12-14

Applicant: APPLIED OPTOELECTRONICS, INC. ,  ZHENG, Jun ,  WANG, Yi ,  PENG, Chuan

Inventor： ZHENG, Jun ,  WANG, Yi ,  PENG, Chuan

IPC: H03F1/26 ,  H04B10/00

CPC classification number: H04B10/58 ,  H04B10/2575

Abstract: A distortion compensation circuit with frequency detection may be used with one or more non-linear elements, such as a laser, to compensate for frequency-dependent distortion generated by the non-linear element(s), for example, in broadband multichannel RF applications. Embodiments of the distortion compensation circuit may include a frequency detector circuit that detects changes in frequency loading conditions in the distortion compensation circuit such that distortion compensation may be adjusted to compensate for distortion under different frequency loading conditions. In a multichannel RF system with multiple channel operation modes, for example, the frequency detector circuit may detect changes in the frequency loading condition as a result of changing operation modes.

Abstract translation: 具有频率检测的失真补偿电路可以与一个或多个非线性元件（例如激光器）一起使用，以补偿例如在宽带多通道RF应用中由非线性元件产生的与频率相关的失真 。 失真补偿电路的实施例可以包括频率检测器电路，其检测失真补偿电路中的频率负载条件的变化，使得可以调整失真补偿以补偿在不同频率负载条件下的失真。 在具有多通道操作模式的多通道RF系统中，例如，频率检测器电路可以检测作为改变操作模式的结果的频率负载状态的变化。