The Integrated Optics has resulted in miniaturization of optical devices. Bent waveguides have replaced straight waveguides in optical integrated circuits for such reasons. In the proposed work, curved/bent waveguide is basic structure for generating delay and hence the phase shift. A differential phase shift is obtained by the differential length change between the straight waveguide and a S-b...

A new type of all optical delay line is realized in fibers. A local dynamic grating reflector can be generated everywhere in the fiber, demonstrating >1 μs delay for 650 ps pulses. OCIS codes: (060.4370) Nonlinear optics, fibers; (290.5900) Scattering, stimulated Brillouin; (060.3735) Fiber Bragg gratings The development of all-optical delay lines using various approaches has been considered as...

Photonic microwave true-time delay eliminates the beam squint problem in broadband phased-array antenna. However the large insertion losses associated with the optical switching network that selects the appropriate delay line is a serious limitation. We have previously demonstrated a unique photonic filter that uses the optical carrier wavelength in the 1550 nm wavelength band to select the des...

An optical tunable delay line based on a side-coupled integrated spaced sequence of resonator (SCISSOR) structure in which pairs of resonances are tuned in opposite directions around the signal frequency is proposed and analyzed. It is shown that this balanced SCISSOR design mitigates the deleterious effects of group delay dispersion and provides both wide bandwidth and continuously tunable lon...

We demonstrate an all-optical delay line in hot cesium vapor that tunably delays 275 ps input pulses up to 6.8 ns and 740 input ps pulses up to 59 ns (group index of approximately 200) with little pulse distortion. The delay is made tunable with a fast reconfiguration time (hundreds of ns) by optically pumping out of the atomic ground states.

We propose a novel scheme for fabricating high-accuracy optical fiber delay lines (OFDLs). The fabrication system integrates self-designed cutting device and length measurement module based on frequency domain reflectometry. can cleave fibers to specific with the help of motorized stage. accuracy fiber-cutting was determined by positional stage, which reach several microns or even lower. This i...