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Frequency Space Measurement of the Spectrum of a Mode-Locked Diode Laser

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Author: Richards, Brian
Advisor: Aubin, Seth
Committee Members: Perdrisat, Charles; Delos, John; Li, Chi-Kwong
Issued Date: 2010-05-13
Subjects: Mode-Locked Diode Laser
Beat Frequency
URI: http://hdl.handle.net/10288/1985
Description: This thesis presents the development of a method for the direct measurement of the spectrum of a mode-locked diode laser using the beat note between the mode-locked laser and a continuous wave laser. This beat note frequency allows for the measurement of the optical frequency comb created by the mode-locked diode laser. The spectrum of the mode-locked diode laser was optimized using a spectrometer and an electronic amplification and filtering circuit was created to try and see the beat note frequency as it is expected to be small compared to the higher frequency terms created by the mode-locked diode laser. A beat note was observed with the diode laser in continuous wave mode and in a partially mode-locked state. The beat note with the diode laser in full mode-locking was not seen and various methods are suggested to explain and resolve this difficulty.
Degree: Bachelors of Science in Physics

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