DEVICE AND METHOD FOR OPTICAL PACKAGE FOR PROVIDING FEEDBACK

The present invention provides a device (200, 300) and a method (100) for providing optical feedback for an optical package. The device includes: an optical emitter (202), responsive to an electrical input current (208), for generating a beam of light; a partially reflective holographic optical elem...

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Bibliographische Detailangaben
Hauptverfasser:	LEBBY, MICHAEL, LUREY, DANIEL, M, HARTON, AUSTIN, V, YEH, JANG-HUN, (JAMES), JIANG, WENBIN, MORIKUNI, JAMES, J, WYATT, KARL
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS CALCULATING COLORIMETRY COMPUTING COUNTING DEVICES USING STIMULATED EMISSION ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY HANDLING RECORD CARRIERS MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASURING PHYSICS PRESENTATION OF DATA RADIATION PYROMETRY RECOGNITION OF DATA RECORD CARRIERS SEMICONDUCTOR DEVICES TESTING
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Beschreibung
Zusammenfassung:	The present invention provides a device (200, 300) and a method (100) for providing optical feedback for an optical package. The device includes: an optical emitter (202), responsive to an electrical input current (208), for generating a beam of light; a partially reflective holographic optical element/reflector (204), arranged to allow a first predetermined portion of the beam to exit the partially reflective holographic optical element/reflector and to diffract a second predetermined portion of the beam to an optical sensing unit (206); and the optical sensing unit, arranged to receive the second predetermined portion of the beam, for generating feedback for adjusting the electrical input current to the optical emitter based on a received optical power of the second predetermined portion of the beam.