MILLIMETERWAVE (MMW) FREQUENCY TUNING BASED ON TEMPERATURE DEPENDENCE CHARACTERISTIC OF BRILLOUIN-ERBIUM FIBER LASER

摘要

THE PRESENT INVENTION DESCRIBES A SYSTEM (100) AND METHOD FOR GENERATING AND TUNING MILLIMETERWAVE FREQUENCY BY TUNING THE WAVELENGTH SPACING OF BRILLOUIN-ERBIUM FIBER LASER THROUGH HEAT. THE BRILLOUIN-ERBIUM FIBER LASER INCLUDES A BRILLOUIN GAIN MEDIUM THAT IS DISPOSED IN A TEMPERATURE CONTROLLED OVEN (150) AND THE DESIRED NUMBER OF OUTPUT LIGHT CHANNELS IS CONTROLLED BY POWER OF THE PUMP LASER CONNECTED TO THE EDFA (130). A MILLIMETERWAVE CARRIER IS THEN OBTAINED BY HETERODYNING TWO SELECTED LIGHT CHANNELS FROM THE BRILLOUIN-ERBIUM FIBER LASER. THE TEMPERATURE DEPENDENCE CHARACTERISTICS OF THE BRILLOUIN FREQUENCY SHIFT RESULTS IN THE TUNING OF CHANNEL SPACING WHEN THE FIBER IS HEATED. THIS ENABLES THE TUNING OF THE MILLIMETERWAVE CARRIER FREQUENCY. FIG. 1 FOR PUBLICATION