The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
We have demonstrated a single passband microwave photonic filter (MPF) based on the stimulated Brillouin scattering (SBS). The obtained single passband MPF shows a main to secondary sidelobe ratio (MSSR) of exceeding 50 dB with a center frequency tunable from 0 to 40 GHz, and a full width at half maximum (FWHM) bandwidth of 16 MHz.
We have investigated the surface Brillouin scattering (SBS) in the transverse Anderson localization (TAL) disordered optical fibers (DOFs), theoretically and numerically. There are random air-holes in the across of silica DOF, and the disordered silica glass-air structure can bring in TAL to the light, as a result, an optical fiber can be produced. The SBS in this TAL DOF is then numerically investigated...
We present the first demonstration of distributed strain/temperature sensing in side hole fibers (SHFs) based on Brillouin optical time domain analysis systems (BOTDA). The Brillouin frequency shift (BFS) of 10.22 GHz and the Brillouin linewidth of 40 MHz were measured. The temperature and strain coefficients of the Brillouin frequency shift are 1.08 MHz/O and 0.089 MHz/με, respectively. Compared...
We demonstrate the first all-optical carrier recovery of coherent signals using on-chip Brillouin gain, replacing digital techniques, with sub-nanosecond latency. This demonstration serves as a proof-of-concept for integrated photonic carrier recovery chips for coherent communications.
We for the first time, study the effect of signal power variations on the extinction ratio and bandwidth of on-chip Brillouin filters for applications in RF photonics and coherent optical communications. The passband extinction reduces from 35 dB to 25 dB on increasing the input signal power by 36 dB, while the bandwidth increased from 13 MHz to 30 MHz.
We present a microwave photonic filter with variable selectivity and shape by using SBS and dispersion-induced phase mismatching in optical fiber. The selectivity and shape can be adjusted by tuning the pump power, polarization state and link dispersion.
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.