Optical injection locking of monolithically integrated photonic source for generation of high purity signals above 100 GHz Articles uri icon

publication date

  • December 2014

start page

  • 29404

end page

  • 29412

issue

  • 24

volume

  • 22

International Standard Serial Number (ISSN)

  • 1094-4087

abstract

  • A monolithically integrated photonic source for tuneable mm-wave signal generation has been fabricated. The source consists of 14 active components, i.e. semiconductor lasers, amplifiers and photodetectors, all integrated on a 3 mm2 InP chip. Heterodyne signals in the range between 85 GHz and 120 GHz with up to -10 dBm output power have been successfully generated. By optically injection locking the integrated lasers to an external optical comb source, high-spectral-purity signals at frequencies >100 GHz have been generated, with phase noise spectral density below -90 dBc/Hz being achieved at offsets from the carrier greater than 10 kHz.

keywords

  • millimeter waves; semiconductor lasers; spectral density; active components; heterodyne signals; high spectral purity; injection-locking; integrated laser; monolithically integrated; optical comb sources; optical injection locking