TY - GEN
T1 - Demonstration of spatial mode selection in a coherently combined fiber laser
AU - Tilseth, Erik
AU - Kunkel, William M.
AU - Leger, James R.
PY - 2019/6
Y1 - 2019/6
N2 - Several physical mechanisms influence the self-phasing of passive coherently combined laser systems, including wavelength tuning, the Kramers-Kronig (KK) effect, the optical Kerr effect, regenerative feedback, and spatial mode selection. Beam recycling, a concept introduced in the modal analysis of a Michelson cavity, applies feedback to waste energy from the coherent combination process to introduce a second supermode in the cavity [1]. Experiments using a polarization-multiplexed cavity showed that the output power is less sensitive to gain arm path length changes when beam recycling is used [2]. Self-phasing mechanisms including beam recycling appear to have also been applied in a ring laser array [3]. Here, we present an experiment which isolates the beam recycling effect in a fiber laser with two separate gain media and show improved laser performance when recycling is implemented.
AB - Several physical mechanisms influence the self-phasing of passive coherently combined laser systems, including wavelength tuning, the Kramers-Kronig (KK) effect, the optical Kerr effect, regenerative feedback, and spatial mode selection. Beam recycling, a concept introduced in the modal analysis of a Michelson cavity, applies feedback to waste energy from the coherent combination process to introduce a second supermode in the cavity [1]. Experiments using a polarization-multiplexed cavity showed that the output power is less sensitive to gain arm path length changes when beam recycling is used [2]. Self-phasing mechanisms including beam recycling appear to have also been applied in a ring laser array [3]. Here, we present an experiment which isolates the beam recycling effect in a fiber laser with two separate gain media and show improved laser performance when recycling is implemented.
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U2 - 10.1109/CLEOE-EQEC.2019.8872817
DO - 10.1109/CLEOE-EQEC.2019.8872817
M3 - Conference contribution
AN - SCOPUS:85074642016
T3 - 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019
BT - 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019
Y2 - 23 June 2019 through 27 June 2019
ER -