Two-dimension nanomaterial tungsten disulfide (WS2) integrated fiber device as all optical phase shifter, switch and modulator near 1550 nm

Abstract

An all-optical phase shifter near 1550nm is realized by depositing two-dimension nanomaterial tungsten disulfide (WS2) to tapered fiber. All-optical switch and modulator are also demonstrated by embedding the phase shifter to a Mach-Zehnder interferometer.