3 March 2014 Injection-locked optically-pumped vertically external cavity surface emitting laser (VECSEL)
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We report a novel single-frequency, injection-locked vertical external-cavity surface-emitting laser (VECSEL) for the first time to the best of our knowledge. The wavelength of the injection locked output can be tuned with the master laser. A lower power single-frequency VECSEL served as the master oscillator that provides wavelength tunability with frequency selective elements such as a birefringent filter, and/or an etalon. The master laser is mode-matched to the slave VECSEL ring resonator. By varying the injecting power and wavelength of the master VECSEL oscillator, we investigated the locking ability of the laser. With 200 mW of the injection power, we generated above 4 W of stable output in single frequency. With the ability to provide narrow linewidth, good beam quality, and stable output with sufficient power at specific wavelengths, this kind of laser sources can be useful in many laser applications, such as precision spectroscopy.
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Yi-Ying Lai, Yi-Ying Lai, Kevin Winn, Kevin Winn, J. M. Yarborough, J. M. Yarborough, Yevgeny Merzlyak, Yevgeny Merzlyak, Yushi Kaneda, Yushi Kaneda, "Injection-locked optically-pumped vertically external cavity surface emitting laser (VECSEL)", Proc. SPIE 8966, Vertical External Cavity Surface Emitting Lasers (VECSELs) IV, 89660Z (3 March 2014); doi: 10.1117/12.2038607; https://doi.org/10.1117/12.2038607

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