A 6 x 30 Gb/s tunable transmitter PIC with low RF crosstalk from an open-access InP foundry

Weiming Yao (Corresponding author), Barry Smalbrugge, Meint Smit, Kevin Williams, Mike Wale

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

We demonstrate a six-channel tunable optical transmitter photonic integrated circuit (PIC) fabricated in an open-access indium phosphide foundry process. The device monolithically integrates 20 nm tunable lasers and 30 Gb/s Mach-Zehnder modulators, without the use of Bragg gratings or additional quantum wells, to form a compact 4×4.5mm2 high-density 6 × 30 Gb/s parallel transmitter. It exhibits a capacity density metric of 10Gb/s/mm2 , comparable to state-of-the-art results from literature and low <-50 dB inter-channel radio-frequency crosstalk. With an attractive price point of 7 USD/Gb/s the device can be a low-cost solution for data center interconnect or residential access networks.
LanguageEnglish
Article number6100510
Number of pages10
JournalIEEE Journal of Selected Topics in Quantum Electronics
Volume25
Issue number5
DOIs
StatePublished - 1 Sep 2019

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Indium phosphide
foundries
Laser tuning
Bragg gratings
Foundries
Crosstalk
crosstalk
Photonics
transmitters
Semiconductor quantum wells
Modulators
Mach number
integrated circuits
Integrated circuits
Transmitters
photonics
indium phosphides
tunable lasers
Costs
modulators

Keywords

  • Optical transmitters
  • optical waveguides
  • wavelength division multiplexing
  • laser tuning
  • integrated photonics

Cite this

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abstract = "We demonstrate a six-channel tunable optical transmitter photonic integrated circuit (PIC) fabricated in an open-access indium phosphide foundry process. The device monolithically integrates 20 nm tunable lasers and 30 Gb/s Mach-Zehnder modulators, without the use of Bragg gratings or additional quantum wells, to form a compact 4×4.5mm2 high-density 6 × 30 Gb/s parallel transmitter. It exhibits a capacity density metric of 10Gb/s/mm2 , comparable to state-of-the-art results from literature and low <-50 dB inter-channel radio-frequency crosstalk. With an attractive price point of 7 USD/Gb/s the device can be a low-cost solution for data center interconnect or residential access networks.",
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