Rate-equations based model for the 2D-0D direct channel in quantum dot lasers under CW and gain-switching

George A. P. Thé

Abstract


Direct capture of carriers from the wetting layer to the most confined states is discussed in this paper. This channel for carrier scattering was recently used to fit typical P-I curves of quantum dot lasers. Here new numerical expressions for the escape times accounting for the carriers added by the direct channel are introduced and evaluated, and insights of the influence of these additional carriers on the continuous and pulsed laser emission spectrum are given. 

Full Text:

PDF

References


A. Markus, J. Chen, O. G.-L. J. Provost, C. Paranthoen, and A. Fiore, "Impact of intraband relaxation on the performance of a quantum-dot laser,`` IEEE J. Select. Top. Quantum Electron., vol. 9, no. 5, pp. 1308– 1314, September/October 2003.

H.S. Djie, B.S. Ooi, X.-. Fang, Y. Wu, J.M. Fastenau, W.K. Liu and M. Hopkinson, "Room-temperature broadband emission of an InGaAs/GaAs quantum dots laser,`` Opt. Lett., vol. 32, 1, pp. 44-46, 2007.

G. Park, D.L. Huffaker, Z. Zhou, O.B. Shchekin and D.G. Deppe,"Temperature dependence of lasing characteristics for long-wavelength (1.3μm) GaAs-based quantum-dot laser,`` J. Appl. Phys., vol. 97, pp. 43 523 1–8, 2005.

E.A. Viktorov, P. Mandel, Y. Tanguy, J. Houlihan and G. Huyet, "Electron-hole asymmetry and two-state lasing in quantum dot lasers,`` Appl. Phys. Lett., vol. 87, 053113, 2005.

M. Sugawara, N. Hatori, H. Ebe, M. Ishida, Y. Arakawa, T. Akiyama, K. Otsubo, and Y. Nakata, "Modeling room-temperature lasing spectra of 1.3μm InAs/GaAs quantum dot lasers: homogeneous broadening of optical gain under current injection,`` J. Appl. Phys., vol. 97, pp. 43 523 1–8, 2005.

C.L. Tan, Y. Wang, H.S. Djie and B.S. Ooi, "Simulation of characteristics of broadband quantum dot lasers,`` Opt. and Quantum Electron., vol. 40, 391, 2008.

P. Dawson, O. Rubel, S. D. Baranovskii, K. Pierz, P. Thomas and E. O. Gobel, "Temperature-dependent optical properties of InAs/GaAs quantum dots: Independent carrier versus exciton relaxation,`` Phys. Rev. B, vol. 72, 235301, 2005.

A. Sakamoto and M. Sugawara, "Theoretical calculation of lasing spectra of quantum-dot lasers: effect of homogeneous broadening of optical gain,`` IEEE Photonics Tech. Lett., vol. 12, 2, pp. 107-109, 2000.

T.-En Nee, Y.-Fen Wu, J.-Chyi Lee and J.-Cheng Wang, "Temperature and excitation dependence of photoluminescence spectra of InAs/GaAs quantum dot heterostructures,`` IEEE Transactions on Nanotechnology, vol. 6, 5, pp.492-496, 2007.

L. Shi, Y. Chen, B. Xu, Z. Wang, and Z. Wang, "Effect of interlevel relaxation and cavity length on double-state lasing performance of quantum dot lasers,`` Physica E, vol. 39, pp. 203–208, 2007.

A. Fiore and A. Markus, "Differential gain and gain compression in quantum-dot lasers,`` IEEE J. Quantum Electron., vol. 43, no. 4, pp. 287–294, 2007.

T.R. Nielsen, P. Gartner and F. Jahnke, "Many-body theory of carrier capture and relaxation in semiconductor quantum-dot laser,`` Phys. Rev. B, vol. 69, 235314, 2004.

P. Miska, C. Paranthoen, J. Even, O. Dehaese, H. Folliot, N. Bertru, S. Loualiche, M. Senes and X. Marie, "Optical spectroscopy and modelling of double-cap grown InAs/InP quantum dots with long wavelength emission,`` Semicond. Sci. Technol., vol. 17, L63, 2002.

G. Raino, G. Visimberga, A. Salhi, M.T. Todaro, M. De Vittorio, A. Passaseo, R. Cingolani and M. De Giorgi, "The influence of continuum background on carrier relaxation in InAs/InGaAs quantum dot,`` Nanoscale Res. Lett., vol. 2, 509, 2007.

A. Markus, M. Rossetti, V. Calligari, J.X. Chen and A. Fiore, "Role of thermal hopping and homogeneous broadening on the spectral characteristics of quantum dot lasers,`` Journal of Appl. Phys., vol. 98, 104506, 2005.

L. Drzewietzki et al., "Theoretical and experimental investigations of the temperature-dependent continuous wave lasing characteristics and the switch-on dynamics of an InAs/InGaAs quantum-dot semiconductor laser``, Opt. Comm., vol. 283, no. 24, pp. 5092-5098, 2010.

G. A. P. The, Improved modeling and simulation of quantum dot lasers, PhD Thesis, chapter 2, Polytechnic of Turin, Italy, 2010.

Z. F. Fan and D. Mahgerefteh , "Chirp managed lasers: A new technology for 10 Gbps optical transmitters``, Optik & Photonik, no. 4, pp. 39-41, December 2007.

L.A. Coldren and S.W. Corzine, "Diode lasers and photonic integrated circuits,`` Ed. John Wiley & Sons, Inc., New York, 1995.




DOI: http://dx.doi.org/10.1590/S2179-10742013000200015

Refbacks

  • There are currently no refbacks.


© Copyright 2007-2016 JMOe Brazilian Microwave and Optoelectronics Society (SBMO) and Brazilian Society of Electromagnetism (SBMag)