In this abstract, we purpose an optical delay line based on nanofibers. Silica high elasticity and the low pulling force required to stretch a nanofiber allow get delays up 20 picoseconds with 10 centimeter-long at telecommunications wavelength.

the modulation response, relative intensity noise and frequency noise characteristics of qd lasers are investigated theoretically, in presence of an additional optical pumping. it is revealed that the modulation response of qd laser enhances under additional optical beam. by small signal analysis of the carriers' and photons' rates, it is proposed that by injecting excess carriers to ...

We demonstrate a technique for femtosecond time-resolved optical pump-probe spectroscopy that allows to scan over a nanosecond time delay at a kilohertz scan rate without mechanical delay line. Two mode-locked femtosecond lasers with approximately 1 GHz repetition rate are linked at a fixed difference frequency of fR=11 kHz. One laser delivers the pump pulses, the other provides the probe pulse...

A hybrid electronic/optical packet switch consists of electronically buffered line-cards interconnected by an optical switch fabric. It provides a scalable switch architecture for next generation high-speed routers. Due to the non-negligible switch reconfiguration overhead, many packet scheduling algorithms are invented to ensure performance guaranteed switching (i.e. 100% throughput with bound...

In this paper, a meaningful star-ring based EPON architecture is proposed to reduce the local traffic transmitted from ONUs (Optical Network Units) to OLT (Optical Line Terminal) which can provide the bandwidth efficiency. One of ONUs is assigned as a Sub-OLT to control the partial traffic in the ring. In addition, the ONU structure is modified in all optical process to reduce the optical-elect...

An optical true time delay line (OTTDL) is a basic photonic building block that enables many microwave photonic and optical processing operations. The conventional design for an integrated OTTDL that is based on spatial diversity uses a length-variable waveguide array to create the optical time delays, which can introduce complexities in the integrated circuit design. Here we report the first e...