A rapidly tunable picosecond PM ytterbium fiber laser pumps an OPO for wavelength conversion to the mid-IR. This compact and transportable source permits fast sensing of methane, and hydrochloric acid with two different detection schemes.

In this paper, we demonstrate the integration of a pre-fabricated semiconductor optical amplifiers on a silicon photonic integrated circuit through micro-transfer-printing. 17 dB small signal gain is obtained from the 1.35 mm long device.

We have developed a mid-infrared laser source based on a narrow bandwidth picosecond fiber laser with fast spectral tuning capabilities pumping a simply resonant OPO emitting around 3.3 𝜇m with high spectral purity (0.4cm-1).

We report the demonstration of gas detection by laser spectroscopy using a compact mid-infrared OPO seeded by a picosecond laser source. Preliminary results on acetone at 2970 cm-1 for concentrations down to 1% are presented.

We have developed a fast wavelength modulated mid-IR source, especially designed for gas spectroscopy. The whole laser source is composed of a picosecond fiber laser emitting a spectrally narrow signal which can be modulated between 1028 nm and 1029 nm at the kHz range. This fiber laser seeds a Synchronously Pumped Optical Parametric Oscillator. This latter converts the near-IR pump (1028 nm) to the mid-IR region (3000-3500 nm) with equivalent modulation parameters i.e. 10 cm-1 tuning range at the kilohertz modulation frequency. This laser was combined with a photo-acoustic cell for methane detection.

In the framework of the INTERREG V research program SAFESIDE, we report the test and development of a mid-infrared laser source for fume and gases detection by infrared laser spectroscopy.