US 12,463,728 B2
Accelerated keying for an optical communication system
Johan Paul Marie Gerard Linnartz, Eindhoven (NL); and Paul Henricus Johannes Maria Van Voorthuisen, Sint Oedenrode (NL)
Assigned to SIGNIFY HOLDING B.V., Eindhoven (NL)
Appl. No. 18/278,322
Filed by SIGNIFY HOLDING B.V., Eindhoven (NL)
PCT Filed Feb. 21, 2022, PCT No. PCT/EP2022/054232
§ 371(c)(1), (2) Date Aug. 22, 2023,
PCT Pub. No. WO2022/184485, PCT Pub. Date Sep. 9, 2022.
Claims priority of application No. 21160601 (EP), filed on Mar. 4, 2021.
Prior Publication US 2024/0129039 A1, Apr. 18, 2024
Int. Cl. H04B 10/516 (2013.01); H04B 10/11 (2013.01)
CPC H04B 10/516 (2013.01) [H04B 10/11 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A transmitter for generating a radiation signal in an optical communication system, the transmitter comprising:
an apparatus for driving a semiconductor radiation source, the apparatus comprising:
a modulator configured to:
modulate a driving signal supplied to the radiation source with a data sequence to generate at least two levels of a driving current through the radiation source that define a radiation output range of the radiation source between an upper radiation output level and a lower radiation output level during transmission of the data sequence; and
a controller configured to:
determine a transmission quality of the radiation output at the transmitter using at least one of: a feedback signal indicative of the radiation output level of the radiation source and a feedback information received from a receiving end of the radiation output;
determine an upper target level and a lower target level defining a reduced radiation output range based on the transmission quality of the radiation output; and
adaptively control the modulator to control the driving current and switch the driving current at a timing determined by the reduced radiation output range between a predetermined upper target level and a predetermined lower target level.