Nuran Dogru

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  • Nuran Dogru
  • Proceedings of LFNM 2005. 7th International…
  • 2005
Mode-locking characteristic of hybrid soliton pulse source (HSPS) utilizing linearly chirped raised-cosine flat top apodized fiber Bragg grating (FBG) is investigated by using coupled-mode equations. It is found that proper mode-locking range where transform-limited pulses are generated is increased up to 1.3 GHz by using linearly chirped raised-cosine flat(More)
Effect of spontaneous and carrier noise on mode-locked HSPS utilizing linearly chirped fiber Bragg grating is investigated by using coupled mode-equations. It is found that transform-limited pulses are generated over a wide tuning range without noise and with low noise level. However, mode-locking is difficult to achieve for large value of spontaneous(More)
  • Nuran Dogru
  • NUSOD '05. Proceedings of the 5th International…
  • 2005
Mode-locking characteristic of hybrid soliton pulse source (HSPS) utilizing linearly chirped raised-cosine flat top apodized fiber Bragg grating (FBG) is investigated by using coupled-mode equations. It is found that proper mode-locking range where transform-limited pulses are generated is increased up to 1.3 GHz by using linearly chirped raised-cosine flat(More)
Gain switching characteristics of quantum well (QW) lasers diode is described by using a SPICE equivalent circuit model which is based on the three-level rate equations. Effects of some laser diode parameters and dc and rf drive conditions on the full-width half maximum (FWHM) of gain switched pulses are investigated. It is shown that FWHM of pulses(More)
We report recent progress and discuss important issues in optimising the operating wavelength and spectral linewidth of gain-switched asymmetric waveguide lasers with a large effective spot size for applications ranging from optical radar systems to nonlinear optics. The active layer design for tailoring the emission wavelength to match the spectral(More)
  • Nuran Dogru
  • 2006 International Workshop on Laser and Fiber…
  • 2006
Mode-locking characteristic of hybrid soliton pulse source (HSPS) utilizing linearly chirped raised-cosine flat top apodized fiber Bragg grating (FBG) is investigated by using coupled-mode equations. It is shown that proper mode-locking range where transform-limited pulses are generated is increased to 1.3 GHz by using linearly chirped raised-cosine flat(More)
A computer model previously developed for mode-locked fibre grating lasers has been applied to external-cavity mode-locking of a novel laser structure that incorporates a curved active waveguide and a straight passive section in order to reduce facet reflectivity. The model is used to optimise the device parameters for high-power pulses with widths of order(More)
In This work small signal intensity (IM) response of hybrid soliton pulse source utilizing Gaussian apodized fiber Bragg grating (FBG) is presented. It has been shown in previous studies that some parameters lead to increase resonance peak spectral splitting (RPSS) in the IM spectra. However, simulation results of this study show that type of external(More)
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