A fiber array can be used to observe signals from different objects. The signals are detected using fluorescence. A conventional fluorescence microscope can easily be coupled to a fiber array. Excitation light is introduced into the proximal end of the fiber and excites fluorescence in the sensor elements at the distal end. The signal then travels back through the fiber and is projected onto a charge-coupled device camera. This camera allows simultaneous observation of all of the fiber’s sensors. Optical fiber array An optical fiber array is a flexible array of fibers. It can provide all the optical functionality of an optical chip without using any electrical wiring. It is…