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Tunable single and multiwavelength continuous-wave c-cut Nd:YVO4 laser

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Abstract

We report a discretely tunable, single and multiwavelength continuous-wave diode-end-pumped laser with a c-cut Nd:YVO4 crystal lasing on the 4F3/2–4I11/2 intermanifold transitions and an intracavity sub-THz free-spectral-range etalon. Experimental results show that it is tunable in the discrete regions of 1066.5–1066.8, 1083.1–1084.6, and 1087.2–1088.2 nm and operates simultaneously at dual-wavelengths of (1084.6, 1087.4), (1066.5, 1088.0), (1066.8, 1083.3) nm by changing the angle of an intracavity etalon with 0.67 THz free-spectral range. With a proper etalon angle, the laser can also simultaneously oscillate at four wavelengths of 1066.9, 1082.9, 1085.7, and 1088.3 nm with a total output power of 1.2 W at an incident diode pump power of 15 W. Similar performance of the laser at different wavelengths was also achieved by using a 0.88 THz free-spectral-range etalon in the same laser cavity.

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Acknowledgements

The authors thank Yung-Fu Chen of National Chiao-Tung University for helpful discussions on Nd:YVO4 lasers. This work is supported by the National Science Council under Contract NSC 99-2622-M-007-001-CC1. Shayeganrad acknowledges financial support of his appointment under the NTHU Outstanding-Center Initiatives.

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Authors and Affiliations

  1. Frontier Research Center on Fundamental and Applied Sciences of Matters, Department of Electrical Engineering, National Tsinghua University, Hsinchu, 30013, Taiwan

    G. Shayeganrad, Y.-C. Huang & L. Mashhadi

  2. Institute of Photonics Technologies, Department of Electrical Engineering, National Tsinghua University, Hsinchu, 30013, Taiwan

    Y.-C. Huang

Authors
  1. G. Shayeganrad
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  2. Y.-C. Huang
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  3. L. Mashhadi
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Correspondence to Y.-C. Huang.

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Shayeganrad, G., Huang, YC. & Mashhadi, L. Tunable single and multiwavelength continuous-wave c-cut Nd:YVO4 laser. Appl. Phys. B 108, 67–72 (2012). https://doi.org/10.1007/s00340-012-4958-0

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  • DOI: https://doi.org/10.1007/s00340-012-4958-0

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