▎ 摘　　要

NOVELTY - The sensor (100) has a collector fiber for positioning proximate to a diaphragm (130), where the collector fiber captures a portion of light reflected by a first side. The collector fiber is in communication with a detector. A converter is in communication with the detector, and converts a signal received by the detector to a digital signal for processing the signal. The portion of the light is captured as a result of diaphragm distortion that is different than the portion of the light captured in absence of the diaphragm distortion. A graphene-based composition includes graphene sheets. USE - Acoustic wave sensor for use in graphene-based microphone diaphragms (claimed). ADVANTAGE - The diaphragm decreases pressure waves impact on the diaphragm, such that thickness of the portion of the diaphragm is decreased, thus facilitating the distortion of the diaphragm and detecting of the pressure waves. The diaphragm is positioned between fixed internal volume of air and environment, thus allowing a microphone to respond uniformly to pressure from a set of directions. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following: (1) a microphone diaphragm (2) a method for fabricating a microphone diaphragm. DESCRIPTION OF DRAWING(S) - The drawing shows a block diagram of an acoustic wave sensor. Acoustic wave sensor (100) Photo emitter (110) Photo collector (120) Diaphragm (130) Pressure waves (140)