We have implemented a BOTDA that combines channel estimation and complementary
coding technique for high performance distributed sensing. The use of OFDM-modulated …

We propose and experimentally demonstrate the possibility to use a pump signal based on
bipolar pulse sequences using single-sideband suppressed-carrier (SSB-SC) modulation in …

The robustness of bipolar pulse coding against pump depletion issues in Brillouin
distributed fiber sensors is theoretically and experimentally investigated. The presented …

A pump signal based on bipolar pulse coding and single-sideband suppressed-carried
(SSB-SC) modulation is proposed for Brillouin optical time-domain analysis (BOTDA) …

We propose and demonstrate a long-range Brillouin optical time-domain analysis (BOTDA)
sensor based on the pre-pumped Simplex coding technique. This approach combines …

A random coding method for a Brillouin optical time domain reflectometer (BOTDR) fiber
sensor is proposed. In this method, a series of pulses modulated by random code are …

We implement a BOTDR sensor that combines the complementary coding with the fast
Fourier transform (FFT) technique for high-performance distributed sensing. The …

The measurement accuracy of a Brillouin optical time domain analysis (BOTDA) fiber sensor
is determined by the signal-to-noise ratio (SNR) of the received sensing signal. Here, a new …

Performance enhanced BOTDA sensors that allows for simultaneous optimization of sensing
range and spatial resolution is proposed and demonstrated in this work by using differential …

We proposed and demonstrated a new structure, which employs a single laser in Brillouin
optical time-domain analysis sensor assisted by distributed Brillouin amplification. This …