Monolithically integrated widely tunable laser source operating at 2 μm

S Latkowski, A. Hänsel, P. J. Van Veldhoven, D. D’Agostino, H. Rabbani-Haghighi, B. Docter, N. Bhattacharya, P. J A Thijs, H. P M M Ambrosius, M. K. Smit, E.A.J.M. Bente

Research output: Contribution to journalArticleScientificpeer-review

30 Citations (Scopus)
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We present a widely tunable extended cavity ring laser operating at 2 μm that is monolithically integrated on an indium phosphide substrate. The photonic integrated circuit is designed and fabricated within a multiproject wafer run using a generic integration technology platform. The laser features an intracavity tuning mechanism based on nested asymmetric Mach-Zehnder interferometers with voltage controlled electro-refractive modulators. The laser operates in a single-mode regime and is tunable over the recorded wavelength range of 31 nm, spanning from 2011 to 2042 nm. Its capability for high-resolution scanning is demonstrated in a single-line spectroscopy experiment using a carbon dioxide reference cell.

Original languageEnglish
Pages (from-to)1412-1417
Number of pages6
Issue number12
Publication statusPublished - 20 Dec 2016


  • Laser sensors
  • Lasers, tunable
  • Photonic integrated circuits
  • Semiconductor lasers
  • Spectroscopy


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