S. E. Alavi1, I. S. Amiri2、*, M. R. K. Soltanian2, R. Penny2, A. S. M. Supa’at1, and H. Ahmad2
Author Affiliations
1Faculty of Electrical Engineering, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Malaysia2Photonics Research Centre, University of Malaya, 50603 Kuala Lumpur, Malaysiashow less
Fig. 1. Schematic diagram of (a) an add-drop MR system without integration with an SG-DFB, (b) an add-drop MR system integrated with an SG-DFB, and (c) the SG-DFB structure.
Fig. 2. (a) SG-DFB structure with burst length LB=5 μm, burst spacing Ls=45 μm, sample grating length LG=455 μm, and number of bursts N=10; (b) grating length versus number of bursts.
Fig. 3. Mode propagation profile of the silicon waveguide with a length of 650 μm. (a) 2D view, (b) 3D view, (c) cross section view, (d) 3D view of the propagation respect to the cross section of the silicon waveguide; the effective index is 3.33 and the effective area is 1 μm2.
Fig. 4. Mode propagation profile of the SG-DFB with a length of 455 μm. (a) 2D view, (b) 3D view, (c) cross section view, (d) 3D view of the propagation respect to the cross section of the SG-DFB; the effective index is 3.25 and the effective area is 2.42 μm2.
Fig. 5. Time domain output signals from the drop port of the add-drop MR (a) without integration with the SG-DFB, FWHM=1.35 ps, and (b) with integration with the SG-DFB, FWHM=1.7 ps.
Fig. 6. Multiple center wavelength output results from the throughput port of the add-drop MR when (a) the add-drop MR is not integrated with the SG-DFB [Fig. 1(a)], FWHM=8pm, and FSR=2.18 nm; and (b) the add-drop MR is integrated with the SG-DFB [Fig. 1(b)], FWHM=5.4pm, and FSR=1.06 nm.
Fig. 7. Drop port output signals (a) with no SG-DFB integration, FWHM=80 pm, and FSR=2.18 nm; (b) after the add-drop MR is integrated with the SG-DFB, FWHM=44 pm and FSR=1.06 nm.
Fig. 8. Dispersion of the drop port output signals for (a) an add-drop MR without the SG-DFB [Fig. 1(a)], (b) versus wavelength, and (c) an add-drop MR integrated with the SG-DFB [Fig. 1(b)].
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176 μm | 0.1 | 0.15 | 3.48 | | () | () | | 1 | 0.5 | 0.1 |
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Table 1. Parameters of the Proposed MR System