Abstract Optical nanotapers fabricated by tapering optical fibers have attracted considerable interest as an ultimate platform for high-efficiency light-matter interactions. While previously demonstrated applications relied exclusively on the low-loss transmission of only fundamental mode, implementation multimode tapers that adiabatically transmit several modes has remained very challenging, h...

We introduce a new concept of OFDM transmission with constant envelope and coherent detection to reduce the sensitivity of OFDM signals to nonlinear effects and phase noise. OCIS codes: (060.2330) Fiber optics communication; (060.5060) Phase Modulation;

This paper demonstrates the first mode-multiplexed system over 19-cell hollow-core photonic band gap fibre, at 2×20Gbps using the LP0,1 and LP2,1-like modes. OCIS codes: 060.0060 (Fiber optics and optical communications), 060.5295 (Photonic crystal fibers)

We present K-band observations of five Mira stars with the IOTA interferometer. The interferograms were obtained with the FLUOR fiber optics beam combiner which provides high-accuracy visibility measurements in spite of time-variable atmospheric conditions.

We prototyped a spherical coded triplet imaging system and verified its extended depthof-field imaging capabilities. c © 2009 Optical Society of America OCIS codes: (060.2320) Fiber optics amplifiers and oscillators; (060.4510) Optical communications