J. Glinski

Publications (12)18.54 Total impact

• Article: Threshold gain and threshold current analysis of circular grating DFB and DBR lasers

  Chunmeng Wu, T. Makino, S.I. Najafi, R. Maciejko, M. Svilans, J. Glinski, M. Fallahi
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  ABSTRACT: A TE-cylindrical wave threshold gain and threshold current analysis is presented for circular grating distributed feedback (CG-DFB) and circular grating distributed-Bragg-reflector (CG-DBR) lasers. Mode properties of CG-DFB/DBR lasers are discussed. It is found that the threshold gain, threshold current density and threshold current of CG-DBR lasers can be much lower than those of CG-DFB lasers
  IEEE Journal of Quantum Electronics 11/1993; · 1.88 Impact Factor
• Article: Erbium-doped composite glass waveguide amplifier

  W.J. Wang, S.I. Najafi, S. Honkanen, Q. He, C. Wu, J. Glinski
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  ABSTRACT: Optical amplification at 1.523 mu m wavelength is demonstrated in an erbium-doped glass waveguide. More than 10 dB amplification is achieved in a 4.7 mm long waveguide with about 30 mW guided pump power of 0.9734 mu m wavelength.
  Electronics Letters 10/1992; · 0.96 Impact Factor
• Article: Electrically pumped circular-grating distributed-Bragg-reflector lasers

  C.M. Wu, M. Svilans, M. Fallahi, I. Templeton, T. Makino, J. Glinski, R. Maciejko, S.I. Najafi, C. Blaauw, C. Maritan, D.G. Knight
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  ABSTRACT: The design, fabrication, and lasing characteristics of electrically pumped circular-grating distributed-Bragg-reflector (CG-DBR) surface-emitting lasers, were studied. Surface-emitted lasing action was achieved at room temperature under pulsed condition. Although the measured threshold current is still higher than theoretical calculations, CW operation should be possible by improving the fabrication and the device structure.< >
  IEEE Photonics Technology Letters 10/1992; · 2.19 Impact Factor
• Article: Room temperature operation of electrically pumped surface-emitting circular grating DBR laser

  C. Wu, M. Svilans, M. Fallahi, I. Templeton, T. Makino, J. Glinski, R. Maciejko, S.I. Najafi, C. Maritan, C. Blaauw, G. Knight
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  ABSTRACT: The first 1.3 mu m electrically-pumped surface-emitting circular grating DBR laser operating at room temperature in a GaInAsP/InP heterostructure is reported. The threshold current was 170 mA. The surface-emitted output power was 10 mW.
  Electronics Letters 06/1992; · 0.96 Impact Factor
• Conference Proceeding: Room temperature operation of circular grating surface-emitting laser

  Chunmeng Wu, M. Svilans, T. Makino, J. Glinski, C. Blaauw, C. Maritan, G. Knight, M. Fallahi, I. Templeton, R. Maciejko, I. Najafi
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  ABSTRACT: Not Available
  Semiconductor Laser Conference , 1992. Conference Digest. 13th IEEE International; 02/1992
• Article: Self-consistent coupled-wave theory for circular gratings on planar dielectric waveguides

  C. Wu, T. Makino, J. Glinski, R. Maciejko, S.I. Najafi
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  ABSTRACT: A self-consistent coupled-wave theory for circular gratings on planar dielectric waveguides is presented. A brief description of cylindrical waves in a planar waveguide is given. The formulation of the coupled-wave theory is presented. Couplings between different cylindrical waves are discussed. It is found that (1) only cylindrical waves of the same order are coupled; (2) for zeroth-cylindrical waves, pure TE-TE (or TM-TM) wave-coupling occurs; (3) for higher order waves, there are couplings between TE- and TM-waves
  Journal of Lightwave Technology 11/1991; · 2.78 Impact Factor
• Article: Optically pumped surface-emitting DFB GaInAsP/InP lasers with circular grating

  C. Wu, M. Svilans, M. Fallahi, T. Makino, J. Glinski, C. Maritan, C. Blaauw
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  ABSTRACT: The lasing action in surface-emitting DFB lasers with circular grating (SE-CG DFB) is reported for the first time. 1.283 mu m laser oscillation is demonstrated by optical pumping. The threshold pumping power density is estimated to be 16.2 kW/cm². The pulsed output power is more than 25 mW.
  Electronics Letters 10/1991; · 0.96 Impact Factor
• Article: Biaxial stress effects on the TE/TM polarization switching of InGaAsP ridge-waveguide lasers

  R. Maciejko, J. Berger, A. Champagne, J. Glinski
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  ABSTRACT: TE/TM (transverse electric/magnetic) polarization switching in ridge-waveguide InGaAsP lasers is analyzed with due considerations to biaxial stress effects on both the waveguiding and gain properties of the device. The conditions of switching for several models are established. In particular, the gain expression for uniaxial stress is extended to include biaxial stress, and the differences between the different models are presented.< >
  IEEE Photonics Technology Letters 08/1989; · 2.19 Impact Factor
• Article: Transfer matrix analysis of the amplified spontaneous emission of DFB semiconductor laser amplifiers

  T. Makino, J. Glinski
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  ABSTRACT: Analytical expressions are derived for the amplified spontaneous emission of a DFB (distributed-feedback) semiconductor laser amplifier with reflective cavity ends. The analysis is extended to a multisection DFB structure including a phase-shifted DFB semiconductor laser amplifier. It is shown that the spontaneous emission power per unit frequency bandwidth emitted from one facet is proportional to the transmission gain and to a quantity which at threshold becomes the inverse of the differential quantum efficiency of the other facet. The analysis is applied to two practical cases: (1) calculation of emission spectra of a DFB semiconductor laser biased below the threshold, and (2) assessment of the signal-to-noise ratio performance of DFB semiconductor laser amplifiers
  IEEE Journal of Quantum Electronics 09/1988; · 1.88 Impact Factor
• Article: Effects of radiation loss on the performance of second-order DFB semiconductor lasers

  T. Makino, J. Glinski
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  ABSTRACT: The effects of radiation loss on the performance of second-order distributed-feedback (DFB) semiconductor lasers with a symmetrical grating are analyzed systematically. The threshold gains of the two lowest modes, the differential quantum efficiency, and the spectral linewidth are calculated as a function of the complex coupling coefficient. The comparison is also made between a conventional DFB and a quarter-wave phase-shifted DFB laser. It is shown that the effects of radiation loss are different in these two laser types. In addition, a simple approximate expression for threshold gain is derived. By way of example, a DFB laser with a rectangular grating is analyzed. It is shown that the performance of a second-order DFB laser is not sensitive to the grating pitch over a fairly wide range, provided that it is close to the pitch which gives the maximum coupling coefficient
  IEEE Journal of Quantum Electronics 02/1988; · 1.88 Impact Factor
• Article: Yield analysis of second-order DSM DFB lasers and implications for design

  J. Glinski, T. Makino
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  ABSTRACT: The results of yield analysis of dynamic single-mode (DSM) second-order distributed feedback (DFB) lasers are presented. Design implications of this analysis are discussed. Three ways of achieving DSM operation which, depending on the design, can operate simultaneously are considered: radiation loss, asymmetric end cavity reflections, and phase shifting of a grating. The interplay among these mode selection mechanisms is analyzed under conditions of random facet cleaving. The calculated expected yield is subjected to three constraints: a minimum side-mode suppression ratio, a maximum threshold current, and a minimum external quantum efficiency. A comparison of DSM performance between first-order and second-order DFB lasers of analogous designs is also included.
  IEEE Journal of Quantum Electronics 07/1987; · 1.88 Impact Factor
• Article: Mode selectivity in DFB lasers with a second-order grating

  J. Glinski, T. Makino
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  ABSTRACT: The relative effectiveness of three methods of achieving dynamic single-mode operation of second-order distributed feedback lasers is analysed. These methods, based on phase shifting, mirror asymmetry and radiation loss are compared under conditions of random cleaving of facets.
  Electronics Letters 02/1986; · 0.96 Impact Factor