公开(公告)号：DK3008844T3

公开(公告)日：2021-10-18

申请号：DK14810428

申请日：2014-06-13

Applicant: APPLIED OPTOELECTRONICS INC

Inventor： ZHENG JUN ,  ANSELM KLAUS ALEXANDER ,  WANG YI ,  ZHANG HUANLIN ,  MCINTOSH-DORSEY DION ,  HO I-LUNG

IPC: H01S5/06 ,  H01S5/028 ,  H01S5/0625 ,  H01S5/12 ,  H01S5/40 ,  H04J14/02

公开(公告)号：EP3161982A4

公开(公告)日：2018-03-07

申请号：EP15810856

申请日：2015-06-24

Applicant: APPLIED OPTOELECTRONICS INC

Inventor： WANG YI ,  ZHANG HUANLIN

IPC: H04J14/00 ,  H04B10/50 ,  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.

公开(公告)号：EP3180874A4

公开(公告)日：2018-04-25

申请号：EP15831537

申请日：2015-08-11

Applicant: APPLIED OPTOELECTRONICS INC

Inventor： ZHENG JUN ,  WANG YI ,  HO I-LUNG ,  ANSELM KLAUS ALEXANDER ,  ZHANG HUANLIN

IPC: H04B10/572 ,  H04J14/02

CPC classification number: H04B10/07955 ,  H01S5/0268 ,  H01S5/0683 ,  H01S5/0687 ,  H01S5/4025 ,  H01S5/4087 ,  H04B10/40 ,  H04B10/503 ,  H04B10/506 ,  H04B10/572 ,  H04J14/02 ,  H04J14/0282

Abstract: Individual channels of a multiplexed laser array in a multi-channel optical transmitter are monitored at an output of an optical multiplexer. The monitoring may be used to confirm proper operation of each of the channels in the multiplexed laser array and/or to perform wavelength locking on each of the channels. Monitoring at the output of the optical multiplexer avoids the use of multiple photodetectors coupled directly to multiple lasers in the multiplexed laser array. The multiplexed laser array generally includes a plurality of laser emitters optically coupled to an optical multiplexer such as an arrayed waveguide grating (AWG). An optical transmitter with a monitored multiplexed laser array may be used, for example, in an optical line terminal (OLT) in a wavelength division multiplexed (WDM) passive optical network (PON) or in any other type of WDM optical communication system capable of transmitting optical signals on multiple channel wavelengths.

公开(公告)号：EP3202058A4

公开(公告)日：2018-06-20

申请号：EP15846828

申请日：2015-09-30

Applicant: APPLIED OPTOELECTRONICS INC

Inventor： ZHENG JUN ,  ANSELM KLAUS ALEXANDER ,  ZHANG HUANLIN ,  CHANG HUNG-LUN

IPC: H01S5/024 ,  H01S5/026 ,  H01S5/028 ,  H01S5/06 ,  H01S5/22 ,  H01S5/40 ,  H04B10/40 ,  H04J14/02

CPC classification number: H01S5/02453 ,  G02B6/12 ,  G02B6/12014 ,  G02B2006/12164 ,  H01S5/02415 ,  H01S5/02438 ,  H01S5/02461 ,  H01S5/0261 ,  H01S5/0268 ,  H01S5/0287 ,  H01S5/0612 ,  H01S5/22 ,  H01S5/4087 ,  H01S2301/176 ,  H04B10/40 ,  H04J14/0282

Abstract: A semiconductor laser diode with integrated heating generally includes a lasing region and a heating region integrated into the same semiconductor structure or chip. The lasing region and the heating region include first and second portions, respectively, of the semiconductor layers forming the semiconductor structure and include first and second portions, respectively, of the active regions formed by the semiconductor layers. Separate laser and heater electrodes are electrically connected to the respective lasing and heating regions for driving the respective lasing and heating regions with drive currents. The heating region may thus be driven independently from the lasing region, and heat may be conducted through the semiconductor layers from the heating region to the lasing region allowing the temperature to be controlled more efficiently.

公开(公告)号：EP3008844A4

公开(公告)日：2017-01-25

申请号：EP14810428

申请日：2014-06-13

Applicant: APPLIED OPTOELECTRONICS INC

Inventor： ZHENG JUN ,  ANSELM KLAUS ALEXANDER ,  WANG YI ,  HO I-LUNG ,  ZHANG HUANLIN ,  MCINTOSH-DORSEY DION

IPC: H01S5/06 ,  H01S5/028 ,  H01S5/0625 ,  H01S5/12 ,  H01S5/40 ,  H04J14/02

CPC classification number: H01S5/0612 ,  H01S5/005 ,  H01S5/0287 ,  H01S5/06246 ,  H01S5/06258 ,  H01S5/1215 ,  H01S5/1246 ,  H01S5/4031 ,  H01S5/4087 ,  H04B10/572 ,  H04J14/02 ,  H04J14/0245

Abstract: A tunable laser with multiple in-line sections generally includes a semiconductor laser body with a plurality of in-line laser sections each 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 sections 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 sections is emitted from a front facet of the laser body. By selectively generating light in one or more of the laser sections, one or more channel wavelengths may be selected for lasing and transmission. The tunable laser with multiple in-line sections may be used, for example, in a tunable transmitter in an optical networking unit (ONU) in a WDM passive optical network (PON) to select a transmission channel wavelength.

Abstract translation: 具有多个直列部分的可调激光器通常包括具有多个在线激光部分的半导体激光器体，每个激光部分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。 在每个激光部分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。 在每个选择的激光部分中产生的激光从激光体的前端面发射。 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沟道波长用于激光和透射。 具有多个在线部分的可调激光器可以用于例如WDM无源光网络（PON）中的光网络单元（ONU）中的可调谐发射机中，以选择传输信道波长。