A number of composite pulse (CP) sequences for four basic quantum phase gates—the Z, S,
T, and general phase gates—are presented. The CP sequences contain up to 18 pulses and …

Composite waveplates (CWs) consisting of multiple single waveplates are basic polarization
elements and widely used to manipulate the polarized light in optical systems, and their …

We introduce a control method for off-resonant robust quantum information processing
suited for quantum integrated photonics. We utilize detunings as control parameters to …

We propose and demonstrate a method to realize an easily tunable non-reciprocal wave
retarder whose phase retardation depends on the light propagation direction. The system is …

A simple scheme for a broadband polarization rotator with tunable rotation angle is
proposed and verified experimentally. The rotator consists of only three wave plates, one of …

Employing counterdiabatic shortcut to adiabaticity (STA), we design short and robust
achromatic two-and three-waveguide couplers. We assume that the phase mismatch …

We experimentally demonstrate broadband and ultra-broadband spectral bandwidth
modular half-wave plates. Both modular devices comprise an array of rotated single half …

We theoretically suggest and experimentally demonstrate a broadband composite optical
rotator that is capable of rotating the polarization plane of a linearly-polarized light at any …

We theoretically propose a type of tunable polarization retarder, which is composed of
sequences of half-wave and quarter-wave polarization retarders, allowing operation at …

Systematic errors are inevitable in most measurements performed in real life because of
imperfect measurement devices. Reducing systematic errors is crucial to ensuring the …