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Binary coherent beam combining with semiconductor TA at 705
Icaza Astiz, Yannik Alan de
Morgan, Mitchell
Projecte realitzat en col.laboració amb L'IFCO
We present a coherent-beam-combining (CBC) experiment using a 795 nm diode laser as a technique to achieve more power by combining two beams. Two Gaussian beams are made to interfere while controlling polarization, amplitude and their relative phase, in a modified Mach-Zehnder interferometer coupled with a polarization interferometer. The output power is locked using a split detector, thus stabilizing its performance and the final output. Next, we explore the polarization- beam-combining (PBC) in this new setup, yielding an efficiency of 80.9% for CBC – polarized light– and 91.7% for PBC – non-polarized light–. We ran a tapered amplifier (TA), controlling its current, temperature and heat dissipation, whose mechanical housing is currently in the optimization phase. In the sequel we shall be installing a TA on each arm of the Mach-Zehnder interferometer to obtain a brighter source. One interesting application of this work is its use in atomic-physics experiments (using rubidium) and second order interactions in crystals.
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fotònica
Àrees temàtiques de la UPC::Enginyeria electrònica::Optoelectrònica::Làser
Polarization (Light)
Semiconductors
Semiconductor laser
Mach-Zehnder
Coherent beam combining
Polarization beam combining
Tapered amplifier
Polarització (Electricitat)
Semiconductors
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
info:eu-repo/semantics/masterThesis
Universitat Politècnica de Catalunya
         

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