Integrated optical sensor utilising a 1D CCD array for multiple output addressing

摘要

An inexpensive and robutst method for acquiring multiple outputs from integrated optical sensor devices using a 1D CCD array is described in this paper. An example is given of the development of an instrument based on the use of an integrated optical Mach-Zehnder interferometer (MZI) refractive index transducer. The technique is especially promising for application to multianalyte sensors where several outputs need to be interrogated simulaneously. THe high sensitivity and low noise demonstrated by the system will enable the use of cheap, stable LED light sources in practical instruments.