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, K.A. Williams, E.A.J.M. Bente

Research output: Contribution to journalArticleAcademicpeer-review

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Abstract

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
JournalOptica
Volume3
Issue number12
DOIs
Publication statusPublished - 20 Dec 2016

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