US 12,445,203 B2
Apparatuses and methods for generating an optical signal in an optical communication network
Zhiping Jiang, Kanata (CA); Yasser Chiniforooshan, Kanata (CA); and Jiang Tang, Wuhan (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed on Apr. 6, 2023, as Appl. No. 18/296,958.
Application 18/296,958 is a continuation of application No. PCT/CN2020/119994, filed on Oct. 9, 2020.
Prior Publication US 2023/0246715 A1, Aug. 3, 2023
Int. Cl. H04B 10/04 (2006.01); H04B 10/50 (2013.01); H04B 10/524 (2013.01); H04B 10/071 (2013.01)
CPC H04B 10/503 (2013.01) [H04B 10/524 (2013.01); H04B 10/071 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An apparatus in an optical network, comprising:
at least a first and a second laser, the first laser configured to generate a first series of optical pulses, and the second laser configured to generate a second series of optical pulses; and
a polarization beam combiner (PBC) configured to receive the first and second series of optical pulses, each optical pulse in the first series of optical pulses being received with a first state of polarization (SOP), and each optical pulse in the second series of optical pulses being received with a second SOP, the first SOP and second SOP being orthogonal with respect to each other, the PBC being further configured to combine the first and second series of optical pulses and to output an un-polarized optical signal;
wherein each optical pulse in at least one of the first and second series of optical pulses has a respective rising edge and a respective falling edge, the first laser being configured to, for the optical pulse in the first series of optical pulses, adjust at least one of a rising slope time on the respective rising edge or a falling slope time on the respective falling edge to be greater than zero; and
the second laser being configured to, for the optical pulse in the second series of optical pulses, adjust at least one of a rising slope time on the respective rising edge or a falling slope time on the respective falling edge to be greater than zero.