| 1. Performance comparison of various modulation schemes over free space optical (FSO) link employing Gamma–Gamma fading model | Optisystem |  |
| 2. A WDM-PON with DPSK modulated downstream and OOK modulated upstream signals based on symmetric 10 Gbit/s wavelength reused bidirectional reflective SOA | Optisystem | |
| 3. A cost effective bidirectional hybrid passive optical network using common carrier for all optical network units (CCAONUs) technique with mitigation of non linearity impact | Optisystem |  |
| 4. Three-mode mode-division-multiplexing passive optical network over 12-km low mode-crosstalk FMF using all-fiber mode MUX/DEMUX | Optisystem |  |
| 5. Spectrum slicing WDM for FSO communication systems under the heavy rain weather | Optisystem |  |
