公开(公告)号：US20200336211A1

公开(公告)日：2020-10-22

申请号：US16855921

申请日：2020-04-22

Applicant: CABLE TELEVISION LABORATORIES, INC

Inventor： HAIPENG ZHANG ,  JUNWEN ZHANG ,  MU XU ,  ZHENSHENG JIA ,  LUIS ALBERTO CAMPOS

IPC: H04B10/50 ,  G02F1/21 ,  G02B27/28 ,  H01S5/323 ,  H01S5/32 ,  H04B10/516 ,  H04B10/25

Abstract: An optical full-field transmitter for an optical communications network includes a primary laser source configured to provide a narrow spectral linewidth for a primary laser signal, and a first intensity modulator in communication with a first amplitude data source. The first intensity modulator is configured to output a first amplitude-modulated optical signal from the laser signal. The transmitter further includes a first phase modulator in communication with a first phase data source and the first amplitude-modulated optical signal. The first phase modulator is configured to output a first two-stage full-field optical signal. The primary laser source has a structure based on a III-V compound semiconductor.

公开(公告)号：US20200295834A1

公开(公告)日：2020-09-17

申请号：US16760098

申请日：2018-11-05

Applicant: CABLE TELEVISION LABORATORIES, INC.

Inventor： LUIS ALBERTO CAMPOS ,  ZHENSHENG JIA ,  JING WANG

IPC: H04B10/2575 ,  H04J14/02 ,  H04B10/532 ,  H04B10/61

Abstract: An optical access network includes an optical hub having at least one processor, and a plurality of optical fiber strands. Each optical fiber strand has a first strand end connected to the optical hub. The network further includes a plurality of nodes connected to at least one segment of a first fiber strand of the plurality of optical fiber strands. Each node is sequentially disposed at respective locations along the first fiber strand at different differences from the optical hub, respectively. The network further includes a plurality of end-points. Each end-point includes a receiver. Each respective receiver (i) has a different optical signal-to-noise ratio (OSNR) from the other receivers, (ii) is operably coupled with at least one node of the plurality of nodes, and (iii) is configured to receive the same optical wavelength signal from the first fiber strand as received by the other receivers.