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HR-coated facet effect on the spectral characteristics of a three-section DBR tunable laser

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Abstract

High-relfection (HR)-coated facet effects on the spectral characteristics of a three-section distributed Bragg reflector (DBR) tunable laser are investigated theoretically, in which the output power emits to the DBR section. It is found that the output power to the DBR sectionP DBR compared to the cleaved facet output powerP 0 is nearly constant to some degree with increasing tuning current. Owing to the high-Q resonator, the HR-coated DBR laser showed a decrease in spectral linewidth. However, there is still linewidth broadening of the HR-coated DBR laser even though the rate of increase is smaller than that of the cleaved-facet DBR laser. In the case of output power emission to the DBR section, it is thought that the HR-coated effect can overcome the decrease in output power under frequency tuning, which is one of the most important drawbacks of DBR laser performance.

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Authors and Affiliations

  1. Division of Electronics and Information Technology, Korea Institute of Science and Technology, 130-650, Seoul, Korea

    S. Lee, W. J. Choi, I. K. Han, D. H. Woo, S. H. Kim, J. I. Lee & K. N. Kang

  2. Department of Physics, Yonsei University, 120-749, Seoul, Korea

    H. L. Park

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  1. S. Lee
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  2. W. J. Choi
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  3. I. K. Han
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  4. D. H. Woo
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  5. S. H. Kim
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  6. J. I. Lee
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  7. K. N. Kang
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  8. H. L. Park
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Lee, S., Choi, W.J., Han, I.K. et al. HR-coated facet effect on the spectral characteristics of a three-section DBR tunable laser. Opt Quant Electron 27, 473–479 (1995). https://doi.org/10.1007/BF00563586

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  • DOI: https://doi.org/10.1007/BF00563586

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