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Proceedings Paper

Intensity and frequency noise properties of multi-Watt single frequency VECSEL with and without active stabilization
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Paper Abstract

We demonstrate the highest free running single frequency power from a single chip VECSEL reported to date, with more than 15W in continuous operation at room temperature. The GaAs-based structure presents an emission wavelength of 1020nm and a tuning range <15nm, with a continuous tunability of 9GHz. The TEM00 output beam exhibits very low transverse phase fluctuations across the entire mode, leading to a beam quality M2 <1.2. To identify and reduce the different sources of noise, the relative intensity noise and frequency noise spectral density are investigated and the intensity and the frequency of the laser were independently stabilized. The laser frequency is controlled and tuned varying the cavity length using a high bandwidth piezoelectric element while intensity fluctuations are reduced by varying the pump intensity. Intrinsic and stabilized frequency and intensity noise are compared.

Paper Details

Date Published: 3 March 2014
PDF: 9 pages
Proc. SPIE 8966, Vertical External Cavity Surface Emitting Lasers (VECSELs) IV, 89660A (3 March 2014); doi: 10.1117/12.2037976
Show Author Affiliations
Alexandre Laurain, College of Optical Sciences, The Univ. of Arizona (United States)
Jorg Hader, College of Optical Sciences, The Univ. of Arizona (United States)
Nonlinear Control Strategies Inc. (United States)
Stephan W. Koch, College of Optical Sciences, The Univ. of Arizona (United States)
Philipps-Univ. Marburg (Germany)
Wolfgang Stolz, Philipps-Univ. Marburg (Germany)
Jerome V. Moloney, College of Optical Sciences, The Univ. of Arizona (United States)
Nonlinear Control Strategies Inc. (United States)


Published in SPIE Proceedings Vol. 8966:
Vertical External Cavity Surface Emitting Lasers (VECSELs) IV
Jerome V. Moloney, Editor(s)

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