| 主权项 |
1. A method for optical spectroscopy based sensing of an object, comprising the steps of:
providing from a remote site a light source, the remote site being remote from a sensing site where an object to be subjected to optical based spectroscopy is located; feeding light from the light source over a feeding optical fiber to the sensing site; coupling the light from the feeding fiber to free space where the light is scattered by the object for sensing; coupling the light that is scattered by the object to be sensed into a collecting optical fiber; and guiding the light from the collecting fiber back to the remote site for detection and spectroscopic analysis; wherein light from the light source directed by the feeding optical fiber is further directed by a circulator to a collimating lens and the object, and then through another collimating lens back to the circulator and coupled into the feeding optical fiber to a remote-site direction, and such that spectroscopic based sensing of a remotely located object is performed wherein all active optical components are located at the remote site and the object undergoing optical spectroscopic analysis is located at the sensing site; and wherein the feeding fiber and the collecting fiber are the same one single fiber that optically connects the remote site including the light source and any detectors to the sensing site including the object to be spectroscopically analyzed. |
