Tunable on chip optofluidic laser

Avraham Bakal; Christoph Vannahme; Anders Kristensen; Uriel Levy

doi:10.1063/1.4936235

Tunable on chip optofluidic laser

Avraham Bakal, Christoph Vannahme, Anders Kristensen, Uriel Levy

Department of Applied Physics

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

A chip scale tunable laser in the visible spectral band is realized by generating a periodic droplet array inside a microfluidic channel. Combined with a gain medium within the droplets, the periodic structure provides the optical feedback of the laser. By controlling the pressure applied to two separate inlets we can change the period of the droplet array. As a result, the lasing frequency is tuned over a broad spectral range. Using this configuration, we demonstrate wavelength tunability of about 70 nm and lasing threshold of about 15 μ J / mm 2.

Original language	English
Article number	211105
Journal	Applied Physics Letters
Volume	107
Issue number	21
DOIs	https://doi.org/10.1063/1.4936235
State	Published - 23 Nov 2015

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© 2015 AIP Publishing LLC.

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Tunable on chip optofluidic laser

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