Simulation of the Optimized Structure of a Laterally Coupled Distributed Feedback (LC-DFB) Semiconductor Laser Above Threshold


  • M. Seifouri Shahid Rajaee Teacher Training University, Faculty of Electrical & Computer Engineering, Iran
  • A. Faraji Ministry of Education, Education Organization of Kurdistan, Bijar, Iran
Volume: 3 | Issue: 5 | Pages: 522-525 | October 2013 |


In this paper, the laterally coupled distributed feedback semiconductor laser is studied. In the simulations performed, variations of structural parameters such as the grating amplitude a, the ridge width W, the thickness of the active region d, and other structural properties are considered. It is concluded that for certain values ​​of structural parameters, the laser maintains the highest output power, the lowest distortion Bragg frequency δL and the smallest changes in the wavelength λ. Above threshold, output power more than 40mW and SMSR values greater than 50 dB were achieved.


Laterally coupled distributed feedback laser, rate equation, coupled wave equation, transfer matrix method


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K. Nosu, K. Iwashita, “A consideration of factors affecting future coherent lightwave communication”, Journal of Lightwave Technol. Vol. 6, No. 5, pp.686-694, 1988 DOI:

R. Millett, K. Hinzer, T. Hall, H. Schriemer, “Simulation analysis of higher order laterally-coupled distributed feedback lasers”, IEEE Journal of Quantum Electronics, Vol. 44, No. 12, pp. 1145-1151, 2008 DOI:

R. Millett, H. Awad, M. Poirier, V. Tolstikhin, T. Hall, K. Hinzer, H. Schriemer, “Design and fabrication of a λ/4 phase shifted 1310 nm laterally-coupled distributed-feedback laser”, Conference on Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science, CLEO/QELS, San Jose, 2008 DOI:

R Millett, K Hinzer, A Benhsaien, T. J. Hall, H Schriemer “The impact of laterally coupled grating microstructure on effective coupling coefficients”, Nanotechnology, Vol. 21, No. 13, Art. No. 134015, 2010 DOI:

R. D. Martin, S. Forouhar, S. Keo, R. J. Lang, R. G. Hunsperger, R. Tiberio, P. F. Chapman, “InGaAs-GaAs-AIGaAs laterally-coupled distributed feedback (LC-DFB) ridge laser diode”, Electronics Letters, Vol. 30 No. 13, pp. 1058-1060, 1994 DOI:

S. Forouhar, R.M. Briggs, C. Frez, K.J. Franz, A.Ksendzov. High-power laterally coupled distributed-feedback GaSb-based diode lasers at 2μm wavelength” Applied Physics Letters, Vol. 100, No. 3, 031107, 2012 DOI:

J. Wang, J. Tian, P. Cai, B. Xiong, Ch. Sun, Y. Luo, “1.55µm AlGaInAs–InP Laterally Coupled Distributed Feedback Laser”, IEEE Photonics Technology Letters, Vol. 17, No. 7, pp. 1372 - 1374, 2005 DOI:

W. Streifer, D. R. Scifres, R. D. Burnham, “Coupled wave analysis of DFB and DBR lasers”, IEEE Journal of Quantum Electronics, Vol. 13, No. 4, pp. 134–141, 1977 DOI:

G. P. Agrawal, A. K. Dutta, Semiconductor lasers, 2nd Ed., New York, Von Nostrand Reinhold, 1993

F. Shahshahani, V. Ahmadi, “Analysis of relative intensity noise in tapered grating QWS-DFB laser diodes by using three rate equations model”, Solid State Electronics, Vol. 52, No. 6, pp. 857-862, 2008 DOI:

T. Makino, “Transfer-matrix formulation of spontaneous emission noise of DFB semiconductor lasers”, Journal of Lightwave Technology, Vol. 9, No. 1, pp. 84-91, 1991 DOI:

T. Makino, J. Glinski, “Transfer matrix analysis of the amplified spontaneous emission of DFB semiconductor laser amplifier”, IEEE Journal of Quantum Electronics, Vol. 24, No. 8, pp. 1507-1518, 1988 DOI:


How to Cite

M. Seifouri and A. Faraji, “Simulation of the Optimized Structure of a Laterally Coupled Distributed Feedback (LC-DFB) Semiconductor Laser Above Threshold”, Eng. Technol. Appl. Sci. Res., vol. 3, no. 5, pp. 522–525, Oct. 2013.


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