As of 1 April 2026, the PSJD database will become an archive and will no longer accept new data. Current publications from Polish scientific journals are available through the Library of Science: https://bibliotekanauki.pl
One-dimensional optical waveguide calculations were performed to study the dependence of waveguide design on confinement factor (Γp) and optical losses (α_i) of nitride laser diodes for emission wavelength ranging from 405 nm to 520 nm. We found that the conventional waveguide design containing GaN waveguide and AlGaN cladding layers known from violet laser diode does not support sufficient confinement of the optical mode for long wavelength devices (λ > 450 nm). We proposed a new design consisting of a thick InGaN waveguide which enhances the confinement. We compared the theoretical predictions with laser diodes grown by plasma assisted molecular beam epitaxy.
Institute of High Pressure Physics, Sokołowska 29/37, 01-142 Warsaw, Poland
TopGaN Ltd, Sokołowska 29/37, 01-142 Warszawa, Poland
References
1. S. Nakamura, G. Fasol, S.J. Pearton, The Blue Laser Diode: The Complete Story, 2nd ed., Springer-Verlag, Heidelberg 2000
2. Y. Enya, Y. Yoshizumi, T. Kyono, K. Akita, M. Ueno, M. Adachi, T. Sumitomo, S. Tokuyama, T. Ikegami, K. Katayama, T. Nakamura, Appl. Phys. Exp. 2, 082101 (2009)
3. A. Avramescu, T. Lermer, J. Muller, C. Eichler, G. Bruederl, M. Sabathil, S. Lutgen, U. Strauss, Appl. Phys. Exp. 3, 061003 (2010)
4. H.Y. Ryu, K.H. Ha, J.K. Son, H.S. Paek, Y.J. Sung, K.S. Kim, H.K. Kim, Y. Park, S.N. Lee, O.H. Nam, J. Appl. Phys. 105, 103102 (2009)
5. U. Strauss, C. Eichler, C. Rumbolz, A. Lell, S. Lutgen, S. Tautz, M. Schillgalies, S. Brüninghoff, Phys. Status Solidi C 5, 2077 (2008)
6. C. Huang, Y. Lin, A. Tyagi, A. Chakraborty, H. Ohta, J.S. Speck, S.P. DenBaars, S. Nakamura, J. Appl. Phys. 107, 023101 (2010)
9. G.M. Laws, E.C. Larkins, I. Harrison, C. Molloy, D. Somerford, J. Appl. Phys. 89, 1108 (2001)
10. J. Wu, W. Walukiewicz, K.M. Yu, J.W. Ager, E.E. Haller, H. Lu, W.J. Schaff, Appl. Phys. Lett. 80, 4741 (2002)
11. E.D. Palik, Handbook of Optical Constants of Solids, Academic Press, Boston 1985
12. T. Lermer, M. Schillgalies, A. Breidenassel, D. Queren, C. Eichler, A. Avramescu, J. Muller, W. Scheibenzuber, U. Schwarz, S. Lutgen, U. Strauss, Phys. Status Solidi A 207, 1328 (2010)
13. C. Skierbiszewski, M. Siekacz, H. Turski, G. Muzioł, M. Sawicka, A. Feduniewicz-Żmuda, J. Smalc-Koziorowska, P. Perlin, S. Grzanka, Z.R. Wasilewski, R. Kucharski, S. Porowski, J. Vac. Sci. Technol. B 30, 02B102 (2012)