Using point-by-point femtosecond laser inscription, a fibre Bragg grating (FBG) was written in a high NA germania-doped fibre. Thermal tests demonstrated that the FBG could withstand temperatures up to 800°C without significant effects on reflectivity. OCIS codes: (060.3735) Fibre Bragg gratings; (320.2250) Femtosecond phenomena

Practical quantum communication between remote quantum memories rely on single photons at telecom wavelengths. Although spin-photon entanglement has been demonstrated in atomic and solid-state qubit systems, the produced single photons at short wavelengths and with polarization encoding are not suitable for long-distance communication, because they suffer from high propagation loss and depolari...

The ability to tune the Bragg wavelength of a fibre-Bragg grating (FBG) in an all-fibre laser can offer added functionality such as laser wavelength tunability, polarization selectivity, and Q-switching. Compared to current techniques which rely on mechanically straining the FBG to achieve Bragg-wavelength tunability, an all-optical technique for tuning an FBG offers potentially faster switchin...

The growth of wireless data systems is seen in the many new standards which have recently been developed or currently in under development. The two major development trends of communication are broadband and wireless, and the existing wireless communication system cannot carry high-speed multimedia service signals because of limited bandwidth, so how to realize high-speed wireless access has be...

Introduction: Remarkable increases in the internet traffic have recently propelled upgrades in the wide-area and metropolitan-area networks employing advanced wavelength-division-multiplexing (WDM) and time-division-multiplexing (TDM) communication systems. Modern local-area networks (LANs) on the other hand, require less processing at the centre nodes but more flexible high-speed access at the...

Contemporary optical fibers can deal with almost all of the unfavorable effects which are known these days. They have sufficiently low specific slump, they can handle a slump caused by OHions, they can restrain the multimode effect and finally they can compensate a chromatic dispersion. But there is one problem, which the present science can’t solve and this problem is the Polarization Mode Dis...

The genesis of this special issue was the International Symposium on Green Radio over-fibre and all-Optical Wireless technologies for Access Networks: GROWAN 2011, 15– 17 June 2011, Brest, France. A selection of international key speakers from both industry and academia were invited to address radio-over-fibre and all-optical wireless technologies with a focus on minimising overall energy consu...

Introduction: One of the key components in all-optical communication networks using the whole low-loss bandwidth of the silica fibre is an ultra-wideband wavelength converter [1]. Use of all-optical ultrawideband wavelength converters enhances network flexibility, allowing an all-optical wavelength conversion between different transmission windows, and therefore avoiding the bottleneck of optic...

The genesis of this special issue was the International Symposium on Green Radio over-fibre and all-Optical Wireless technologies for Access Networks: GROWAN 2011, 15– 17 June 2011, Brest, France. A selection of international key speakers from both industry and academia were invited to address radio-over-fibre and all-optical wireless technologies with a focus on minimising overall energy consu...