Patent ID: 8477296
Filing Date: 2013-07-02
Classification: G01D,G01J,G01M,G01N,H01S,H04J

Abstract:
1. An opto-electronic signal processing apparatus, comprising: an integrated laser module including a laser source, a wavelength measurement apparatus, and one or more elements for thermal control of at least the laser source wherein the wavelength measurement apparatus further includes a wavelength selective element and two photodetectors; a light receiver; an optical coupling element, having at least a first port, a second port and a third port, the first port of the optical coupling element being optically coupled to the integrated laser module, the second port of the optical coupling element being optically coupled to the light receiver, and the third port of the optical coupling element being optically coupleable to an optical sensor to be interrogated; and an electronic control and processing unit electrically coupled bi-directionally to the integrated laser module wherein the electronic control and processing unit is adapted to receive spectral characteristics of the optical sensor being interrogated based upon a wavelength sweep of emitted light signals sent by the integrated laser module, reflected by the optical sensor and received by the light receiver, and simultaneously receiving from the integrated laser module a wavelength of light being emitted by the integrated laser module.