公开(公告)号：US09236945B2

公开(公告)日：2016-01-12

申请号：US13760533

申请日：2013-02-06

Applicant: Applied Optoelectronics, Inc.

Inventor： I-Lung Ho ,  Jun Zheng ,  Luohan Peng

IPC: G02B6/36 ,  H04B10/40 ,  H04B10/50 ,  H04J14/02

CPC classification number: H04B10/40 ,  H04B10/506 ,  H04J14/0246 ,  H04J14/025

Abstract: A thermally shielded multi-channel transmitter optical subassembly (TOSA) may be used in a multi-channel optical transceiver. The multi-channel TOSA generally includes an array of lasers optically coupled to an arrayed waveguide grating (AWG) to combine multiple optical signals at different channel wavelengths. A plurality of laser array thermal shields are thermally coupled to a temperature control device, such as a thermoelectric cooler (TEC), and thermally shield the respective lasers in the laser array in separate thermally shielded compartments. Each of the lasers may also be individually thermally controlled to provide a desired wavelength, for example, using a heater and/or cooler located in each thermally shielded compartment. The optical transceiver may be used in a wavelength division multiplexed (WDM) optical system, for example, in an optical line terminal (OLT) in a WDM passive optical network (PON).

Abstract translation: 可以在多通道光收发器中使用热屏蔽多通道发射机光学子组件（TOSA）。 多通道TOSA通常包括光学耦合到阵列波导光栅（AWG）的激光器阵列，以组合在不同沟道波长处的多个光信号。 多个激光阵列热屏蔽件热耦合到诸如热电冷却器（TEC）的温度控制装置，并且在分离的热屏蔽隔室中将激光器阵列中的相应激光器热屏蔽。 每个激光器还可以被单独地热控制以提供期望的波长，例如使用位于每个隔热隔间中的加热器和/或冷却器。 光收发器可以用在波分复用（WDM）光学系统中，例如在WDM无源光网络（PON）中的光线路终端（OLT）中。

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：US09696503B2

公开(公告)日：2017-07-04

申请号：US14850367

申请日：2015-09-10

Applicant: Applied Optoelectronics, Inc.

Inventor： Kai-Sheng Lin ,  I-Lung Ho ,  Jun Zheng ,  Chong Wang

IPC: H04B10/40 ,  G02B6/42 ,  G02B6/32 ,  H01S5/00

CPC classification number: G02B6/4209 ,  G02B6/32 ,  G02B6/4215 ,  G02B6/4228 ,  G02B6/4246 ,  G02B6/4263 ,  G02B6/4292 ,  H01S5/0078 ,  H04B10/40

Abstract: A multi-channel transmitter optical subassembly (TOSA) with an off-center fiber in an optical coupling is disclosed, and can provide passive compensation for beam displacement introduced by optical isolators. The optical coupling receptacle can include an optical isolator configured to receive a focused light beam from a focus lens within the TOSA. The optical coupling receptacle may be offset such that a center line of the focused light beam entering the optical isolator is offset from a center line of a fiber within optical coupling receptacle. Thus the optical isolator receives the focused light beam from the focus lens and introduces beam displacement such that an optical signal is launched generally along a center line of the fiber. Thus the expected beam displacement introduced by the optical isolator is eliminated or otherwise mitigated by the offset between a center line of the fiber and a center position of the focus lens.

公开(公告)号：US20160377822A1

公开(公告)日：2016-12-29

申请号：US14295459

申请日：2014-06-04

Applicant: Applied Optoelectronics, Inc.

Inventor： Jun Zheng ,  Yi Wang ,  I-Lung Ho ,  Chong Wang

IPC: G02B6/42 ,  H04J14/02 ,  G02B6/293 ,  H01S5/12 ,  H01S5/40 ,  H01S5/024 ,  H01S5/00 ,  H04B10/50 ,  G02B6/12

CPC classification number: G02B6/4271 ,  G02B6/12019 ,  G02B6/29329 ,  G02B6/2938 ,  G02B6/4292 ,  H01S5/0014 ,  H01S5/02216 ,  H01S5/02415 ,  H01S5/02453 ,  H01S5/0612 ,  H01S5/06804 ,  H01S5/12 ,  H01S5/4025 ,  H01S5/4087 ,  H04B10/503 ,  H04B10/506 ,  H04B10/572 ,  H04J14/02 ,  H04J14/0256

Abstract: The temperature at different locations along a multiplexed laser array may be monitored by sensing temperature at two locations within a transmitter optical subassembly (TOSA) package housing the laser array. The temperature at the two locations is used to determine a temperature tilt across the laser array. Estimated temperatures may then be determined at one or more other locations along the laser array from the temperature tilt. The estimated temperature(s) may then be used to adjust the temperature proximate the other locations, for example, for purposes of tuning lasers at those locations along the laser array to emit a desired channel wavelength. The TOSA package may be used in an optical transceiver in a wavelength division multiplexed (WDM) optical system, for example, in an optical line terminal (OLT) in a WDM passive optical network (PON).

Abstract translation: 可以通过感测在容纳激光器阵列的发射机光学子组件（TOSA）封装内的两个位置处的温度来监测复用激光器阵列处不同位置处的温度。 两个位置的温度用于确定激光器阵列上的温度倾斜。 然后可以在沿着激光器阵列的一个或多个其它位置从温度倾斜确定估计的温度。 然后可以使用估计的温度来调节靠近其它位置的温度，例如，为了在沿着激光器阵列的那些位置处调谐激光器以发射期望的通道波长。 TOSA封装可以用在波分复用（WDM）光学系统的光收发器中，例如在WDM无源光网络（PON）中的光线路终端（OLT）中。

公开(公告)号：US20160197678A1

公开(公告)日：2016-07-07

申请号：US14590456

申请日：2015-01-06

Applicant: Applied Optoelectronics, Inc.

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

IPC: H04B10/50 ,  H01S5/062

CPC classification number: H01S5/06256 ,  H01S5/02415 ,  H01S5/06226

Abstract: A two-section semiconductor laser includes a gain section and a modulation-independent grating section to reduce chirp. The modulation-independent grating section includes a diffraction grating for reflecting light and forms a laser cavity with the gain section for lasing at a wavelength or range of wavelengths reflected by the diffraction grating. The gain section of the semiconductor laser includes a gain electrode for driving the gain section with at least a modulated RF signal and the grating section includes a grating electrode for driving the grating section with a DC bias current independent of the modulation of the gain section. The semiconductor laser may thus be directly modulated with the modulated RF signal without the modulation significantly affecting the index of refraction in the diffraction grating, thereby reducing chirp.

Abstract translation: 两部分半导体激光器包括增益部分和调制无关光栅部分，以减少啁啾。 调制非依赖光栅部分包括用于反射光的衍射光栅，并且在激光的增益部分处形成激光腔，该增益部分在由衍射光栅反射的波长或波长范围内进行激光。 半导体激光器的增益部分包括用于以至少调制的RF信号驱动增益部分的增益电极，并且光栅部分包括用于以独立于增益部分的调制的DC偏置电流来驱动光栅部分的光栅电极。 因此，半导体激光器可以用调制的RF信号直接调制，而不会使调制显着影响衍射光栅中的折射率，从而减少啁啾。

公开(公告)号：US09214790B2

公开(公告)日：2015-12-15

申请号：US13644113

申请日：2012-10-03

Applicant: Applied Optoelectronics, Inc.

Inventor： Jun Zheng ,  Stefan Murry ,  Wen-Yen Hwang

IPC: H04B10/12 ,  H01S3/08 ,  H01S5/40 ,  H04J14/02

CPC classification number: H01S5/4062 ,  H01S5/4087 ,  H04J14/0254 ,  H04J14/0279 ,  H04J14/0282

Abstract: A filtered laser array assembly generally includes an array of laser emitters coupled between external modulators and an arrayed waveguide grating (AWG). Each of the laser emitters emits light across a plurality of wavelengths including, for example, channel wavelengths in an optical communication system. The AWG filters the emitted light from each of the laser emitters at different channel wavelengths associated with each of the laser emitters. Lasing cavities are formed between each of the laser emitters and a back reflector coupled to an output of the AWG such that laser output from the laser emitters is provided at the respective channel wavelengths of the reflected, filtered light. The external modulators enable high speed modulation of the laser output. The modulated laser output may then be optically multiplexed to produce an aggregate optical signal including multiple channel wavelengths.

Abstract translation: 滤波的激光阵列组件通常包括耦合在外部调制器和阵列波导光栅（AWG）之间的激光发射器的阵列。 每个激光发射器在多个波长中发射光，包括例如光通信系统中的信道波长。 AWG在与每个激光发射器相关联的不同通道波长处对来自每个激光发射器的发射光进行滤波。 在每个激光发射器和耦合到AWG的输出的后反射器之间形成激光腔，使得来自激光发射器的激光输出被提供在反射的滤波光的相应通道波长处。 外部调制器可实现激光输出的高速调制。 然后可以将经调制的激光输出光学多路复用以产生包括多个信道波长的聚合光信号。

公开(公告)号：US20140161459A1

公开(公告)日：2014-06-12

申请号：US13760533

申请日：2013-02-06

Applicant: APPLIED OPTOELECTRONICS, INC.

Inventor： I-Lung Ho ,  Jun Zheng ,  Luohan Peng

IPC: H04B10/40

CPC classification number: H04B10/40 ,  H04B10/506 ,  H04J14/0246 ,  H04J14/025

Abstract: A thermally shielded multi-channel transmitter optical subassembly (TOSA) may be used in a multi-channel optical transceiver. The multi-channel TOSA generally includes an array of lasers optically coupled to an arrayed waveguide grating (AWG) to combine multiple optical signals at different channel wavelengths. A plurality of laser array thermal shields are thermally coupled to a temperature control device, such as a thermoelectric cooler (TEC), and thermally shield the respective lasers in the laser array in separate thermally shielded compartments. Each of the lasers may also be individually thermally controlled to provide a desired wavelength, for example, using a heater and/or cooler located in each thermally shielded compartment. The optical transceiver may be used in a wavelength division multiplexed (WDM) optical system, for example, in an optical line terminal (OLT) in a WDM passive optical network (PON).

Abstract translation: 可以在多通道光收发器中使用热屏蔽多通道发射机光学子组件（TOSA）。 多通道TOSA通常包括光学耦合到阵列波导光栅（AWG）的激光器阵列，以组合在不同沟道波长处的多个光信号。 多个激光阵列热屏蔽件热耦合到诸如热电冷却器（TEC）的温度控制装置，并且在分离的热屏蔽隔室中将激光器阵列中的相应激光器热屏蔽。 每个激光器还可以被单独地热控制以提供期望的波长，例如使用位于每个隔热隔间中的加热器和/或冷却器。 光收发器可以用在波分复用（WDM）光学系统中，例如在WDM无源光网络（PON）中的光线路终端（OLT）中。

公开(公告)号：US20140161457A1

公开(公告)日：2014-06-12

申请号：US13708569

申请日：2012-12-07

Applicant: APPLIED OPTOELECTRONICS, INC.

Inventor： I-Lung Ho ,  Jun Zheng ,  Chong Wang

IPC: H04B10/40

CPC classification number: H04B10/40 ,  G02B6/2938 ,  G02B6/42 ,  G02B6/4269 ,  G02B6/4273 ,  H04B10/506 ,  H04J14/0246 ,  H04J14/025

Abstract: A thermally isolated multi-channel transmitter optical subassembly (TOSA) may be used in a multi-channel optical transceiver. The multi-channel TOSA generally includes an array of lasers optically coupled to an arrayed waveguide grating (AWG) to combine multiple optical signals at different channel wavelengths. The lasers, and possibly other components, are wire bonded to a thermal isolation bar. The thermal isolation bar provides an electrical connection to external circuitry and is thermally coupled to a temperature control device, such as a thermoelectric cooler (TEC). Thus, the thermal isolation bar electrically connects the lasers to the circuitry while preventing external heat from being conducted to the lasers from outside the TOSA. The optical transceiver may be used in a wavelength division multiplexed (WDM) optical system, for example, in an optical line terminal (OLT) in a WDM passive optical network (PON).

Abstract translation: 在多通道光收发器中可以使用热隔离多通道发射机光学子组件（TOSA）。 多通道TOSA通常包括光学耦合到阵列波导光栅（AWG）的激光器阵列，以组合在不同沟道波长处的多个光信号。 激光器以及可能的其他部件被引线接合到隔热棒。 热隔离杆提供与外部电路的电连接，并且热耦合到诸如热电冷却器（TEC）的温度控制装置。 因此，热隔离条将激光器电连接到电路，同时防止外部热量从TOSA外部传导到激光器。 光收发器可以用在波分复用（WDM）光学系统中，例如在WDM无源光网络（PON）中的光线路终端（OLT）中。

公开(公告)号：US20160277117A1

公开(公告)日：2016-09-22

申请号：US14661772

申请日：2015-03-18

Applicant: Applied Optoelectronics, Inc.

Inventor： Jun Zheng ,  Stefan Murry ,  Klaus Alexander Anselm

IPC: H04B10/50 ,  H04J14/02 ,  H04B10/40 ,  H01S5/028 ,  H01S5/068

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主体。 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：US09306671B2

公开(公告)日：2016-04-05

申请号：US13708569

申请日：2012-12-07

Applicant: Applied Optoelectronics, Inc.

Inventor： I-Lung Ho ,  Jun Zheng ,  Chong Wang

IPC: G02B6/36 ,  H04B10/40 ,  H04B10/50 ,  H04J14/02 ,  G02B6/42 ,  G02B6/293

CPC classification number: H04B10/40 ,  G02B6/2938 ,  G02B6/42 ,  G02B6/4269 ,  G02B6/4273 ,  H04B10/506 ,  H04J14/0246 ,  H04J14/025

Abstract: A thermally isolated multi-channel transmitter optical subassembly (TOSA) may be used in a multi-channel optical transceiver. The multi-channel TOSA generally includes an array of lasers optically coupled to an arrayed waveguide grating (AWG) to combine multiple optical signals at different channel wavelengths. The lasers, and possibly other components, are wire bonded to a thermal isolation bar. The thermal isolation bar provides an electrical connection to external circuitry and is thermally coupled to a temperature control device, such as a thermoelectric cooler (TEC). Thus, the thermal isolation bar electrically connects the lasers to the circuitry while preventing external heat from being conducted to the lasers from outside the TOSA. The optical transceiver may be used in a wavelength division multiplexed (WDM) optical system, for example, in an optical line terminal (OLT) in a WDM passive optical network (PON).

Abstract translation: 在多通道光收发器中可以使用热隔离多通道发射机光学子组件（TOSA）。 多通道TOSA通常包括光学耦合到阵列波导光栅（AWG）的激光器阵列，以组合在不同沟道波长处的多个光信号。 激光器以及可能的其他部件被引线接合到隔热棒。 热隔离杆提供与外部电路的电连接，并且热耦合到诸如热电冷却器（TEC）的温度控制装置。 因此，热隔离条将激光器电连接到电路，同时防止外部热量从TOSA外部传导到激光器。 光收发器可以用在波分复用（WDM）光学系统中，例如在WDM无源光网络（PON）中的光线路终端（OLT）中。