Highly flexible short-pulse generation and high sensitivity sensing with stimulated Brillouin scattering in optical fibers

Victor Lambin Iezzi, Sébastien Loranger, Raman Kashyap
2014 IOP Conference Series: Materials Science and Engineering  
Brillouin-based light storage and delay techniques M Merklein, B Stiller and B J Eggleton -Temporal characterization of a multiwavelength Brillouin-erbium fiber laser Abstract. We demonstrate two novel types of applications using the same generator as a source for Brillouin multi-wavelength generation. The first is as a highly flexible picosecond pulsed laser source which is tunable in time duration, repetition rate and emission wavelength for optical clock applications in telecommunication.
more » ... lecommunication. The second application is a high sensitivity distributed Brillouin sensors (DTS) to lower costs and widens the market sector. We demonstrate tunability of the pulsed laser source from ~15 ps down to ~3.5 ps over the whole telecommunications C-band by simply controlling the number of Stokes waves being generated forming a phase-locked Brillouin frequency comb. The repetition rate is the Brillouin frequency shift of ~10 GHz which can be tuned by changing the gain fiber within the cavity. An increase in the standard temperature sensitivity of DTS of ~1.3 MHz/°C by 6 fold is also demonstrated. This increase is of great importance in DTS, since the detection of any variation can be made faster, which can enhance the functionality of such sensors.
doi:10.1088/1757-899x/67/1/012007 fatcat:p75ejbrwfvbabjzlf3vn43wbwi