Journal
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
Volume 26, Issue 5, Pages -Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JSTQE.2020.2984572
Keywords
Optical transmitters; Distributed feedback devices; Bandwidth; Fiber lasers; Radio frequency; Radio transmitters; Photonic Integrated Circuits (PICs); Monolithic integrated circuits; High speed transmitters; Distributed feedback lasers
Categories
Funding
- ACTPHAST (Access CenTer for PHotonics innovAtion Solutions and Technology Support) - European Commission [619205]
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In this paper we summarize results concerning high-speed integrated multi-wavelength transmitters fabricated using a generic InP integration platform. The photonic integrated circuits (PICs) include tunable directly modulated DFB lasers emitting in the C-band, monitoring photodetectors, MMI couplers and output spot size converters. The directly modulated lasers, designed in order to fit within a 100 GHz grid, show a maximum 3-dB small signal bandwidth of 21 GHz and a tunability range of about 4 nm. In particular, we report an 8-channel transmitter showing operation up to 30 Gb/s per channel (for 200 + Gb/s applications) and a 4-channel transmitter capable of operating up to 34 Gb/s per channel (for 100+ Gb/s applications). Error free operation (bit error rates < 10(-9)) is achieved for all the channels in all the cases.
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