A stabilized integrated ring laser for high resolution fibre based sensing

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Abstract

We present an implementation of the Pound-Drever-Hall locking technique on a monolithically integrated single frequency tuneable ring laser fabricated using InP active-passive integration technology. The laser which is based on three cascaded asymmetric Mach-Zehnder interferometers is locked to a fibre Fabry-Perot interferometer with 1 MHz full-width at half-maximum. The electric feedback signal is fed to a separate intracavity electro-refractive modulator which controls the wavelength of the lasing mode. We demonstrate the laser wavelength stabilization on long time scales. We intend to use such an integrated stabilised laser in a fibre based sensing system.
Original languageEnglish
Title of host publication21st Annual Symposium of the IEEE Photonics Benelux Chapter, 17-18 November 2016, Ghent, Belgium
Pages51-54
Publication statusPublished - 18 Nov 2016
Event21st Annual Symposium of the IEEE Photonics Society Benelux Chapter - Het Pand, Universiteit Gent, Ghent, Belgium
Duration: 17 Nov 201618 Nov 2016
Conference number: 21

Conference

Conference21st Annual Symposium of the IEEE Photonics Society Benelux Chapter
Abbreviated titleIPS 2016
Country/TerritoryBelgium
CityGhent
Period17/11/1618/11/16

Keywords

  • photonic integration
  • strain sensor
  • laser stabilization
  • integrated optics

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