In this direction we are mainly interested in the development of fiber based laser systems for the sensor and telecomm. Application. The group is focusing on the developmet of a tunable / swept laser source for biomedical application and  we acheiveeda world record for the swept laser source of the widest sweeping range. In addition we were the first to demonstrat a tunable random laser with a very wide spectral tuning range (> 70 nm) keeping a very low laser linewidth < 4kHz over all the tuning range. This opens the door for many biomedical applications. In addition we are also working on the development of a ring laser gyroscope based on the use of a fiber and semiconductor optical amplifier solution.

Research Team

1. Diaa A. Khalil
2. Yasser M. Sabry
3. Alaa Fathy

Related Journal Publication List

1. M. A. Selim, Y. M. Sabry and D. Khalil, "Sensitivity Enhancement Factor for Gain-Assisted Cavity Enhanced Spectroscopy," in IEEE Journal of Quantum Electronics, vol. 56, no. 3, pp. 1-8, June 2020, Art no. 7700108, doi: 10.1109/JQE.2020.2984765.
2. John O. Gerguis, Yasser M. Sabry, Haitham Omran, and Diaa Khalil, "Spectroscopic Gas Sensing Based on a MEMS-SOA Swept Fiber Laser Source," J. Lightwave Technol. Vol. 37, pp. 5354-5360, Oct. 2019.  
3. J. O. Gerguis, YM Sabry, and D. A Khalil, “Capturing the Instantaneous Spectral Response of a MEMS Swept Laser Source Using a Quasi-Static Tunable Filter”, IEEE Journal of Selected Topics in Quantum Electronics, Volume 25, Issue 6, Nov.-Dec. 2019. 
4. H. Shawki, H. Kotb, and Diaa Khalil, “Modeling and characterization of a dual-wavelength SOA-based single longitudinal mode random fiber laser with tunable separation”, OSA Continuum, Vol. 2, No. 2, pp. 358-369, 2019.
5. MA Selim, GA Adib, YM Sabry, and Diaa Khalil, “Incoherent Gain-Assisted Ring Enhanced Gas Absorption Spectroscopy”, IEEE Journal of Quantum Electronics Vol. 55, No. (1), pp. 1-8, 2019.
6. Alaa Fathy, Yasser Sabry and Diaa Khalil, “Quasi-homogeneous partial coherent source modeling of multimode optical fiber output using the elementary source method”, IOP Journal of Optics, Vol.19, Issue 10,  14 Sept. 2017. 
7. Heba Shawki, Hussein Kotb, and Diaa Khalil, “Single Longitudinal Mode Broad Band Tunable Random Laser”, OSA, Optics Letters, Vol. 42, Issue 16, pp. 3247-3250, 15 August 2017.
8. Kamal Khalil, Yasser Sabry, Khaled Hassan, Ahmed Shebl, Mostafa Soliman, Yomna Eltagoury, and Diaa Khalil, “In-line optical MEMS phase modulator and application in ring laser frequency modulation”, IEEE, Journal of Quantum Electronics, Vol. 52, No. 8, August 2016. 
9. Tarek A. Al-Saeed, Mohamed Y. Shalaby, and Diaa A. Khalil, “Study of dual-source Fourier-domain optical coherence tomography”, Optical Engineering Vol. 54, No., 10, 104112, October 2015.
10. Haitham Omran, and Diaa Khalil. "Accessing Rapidly Scanning Swept Laser Source Instantaneous Spectral width using Multimode Rate Equation Model." IEEE Journal of Selected Topics in Quantum Electronics, Volume 21, NO. 6, November/December 2015.