公开(公告)号：US20140043614A1

公开(公告)日：2014-02-13

申请号：US13929816

申请日：2013-06-28

Applicant: Technion Research and Development Foundation Ltd.

Inventor： Yuvaraj DHAYALAN ,  Gil BACHAR ,  Ilya BASKIN ,  Oleg SHTEMPLUCK ,  Eyal BUKS

IPC: G02B6/42

CPC classification number: G02B6/42 ,  G01D5/35367

Abstract: A system for measurement of environmental parameters, using an optomechanical cavity in the end of an optical fiber. A single unmodulated CW laser excites the cavity, which has one reflective element fixed within the end of the fiber and the facing reflector being the surface of a mechanical element, supported over the cavity at the end of the fiber so that it can vibrate at its natural resonance frequency. The length of the cavity “vibrates” at the same frequency as the mechanical element, so that the light reflected from the cavity is modulated at that same frequency, and can be readily measured. The resonant frequency of the mechanical element is responsive to the environmental parameter to be measured, either by direct influence on the vibration of the mechanical element, or by means of the element's temperature change as a result of exposure to the environmental parameter.

Abstract translation: 一种用于测量环境参数的系统，使用光纤端部的光学机械腔。 单个未调制的CW激光器激发空腔，其具有固定在光纤末端内的一个反射元件，并且面向反射器是机械元件的表面，其被支撑在纤维端部的空腔上，使得其可以在其振动 天然共振频率。 空腔的长度以与机械元件相同的频率“振动”，使得从腔体反射的光被以相同的频率调制，并且可以容易地测量。 通过直接影响机械元件的振动，或通过暴露于环境参数的元件的温度变化，机械元件的共振频率响应要测量的环境参数。