1.孙国勇, Y. Zhou, L. Cui, Y. Chung；Tunable multiwavelength SOA-fiber ring laser based on Sagnac loop mirror incorporating few-mode high birefringence fiber；Laser Physics； 21；1899-1902；2011-10-8  

2.孙国勇, Y. Zhou, L. Cui and Y. Chung；Polarization controlled multiwavelength switchable erbium-doped fiber laser based on high birefringence few-mode fiber loop mirror；Laser Physics； 21；1914-1918；2011-10-6  

3.孙国勇, Yingwu Zhou, Yihui Hu and Youngjoo Ch；Switchable erbium-doped fiber ring laser based on Sagnac loop mirror incorporating few-mode high birefringence fiber；Optics Communications； 284；1608-1611；2011-3-4  

4.孙国勇, Y. Hu, Y. Zhou, Y. Chung；Broad tunability of erbium-doped fiber ring laser based on few-mode polarization maintaining fiber Sagnac interferometer；Applied Physics B: Lasers and Optics； 102；589-594；2011-3-2  

5.孙国勇, H. Tang, Y. Zhou and Y. Chung；Dual-wavelength switchable erbium-doped fiber ring laser based on merged Sagnac and intermodal interferences in Sagnac loop mirror；Laser Physics； 21；194-197；2011-1-1  

6.孙国勇, Yingwu Zhou, Yihui Hu and Youngjoo Ch；Polarization controlled tunable multiwavelength SOA-fiber laser based on few-mode polarization maintaining fiber loop mirror；Optical Fiber Technology； 17；79-83；2011-1-1  

7.孙国勇, Yihui Hu and Youngjoo Chung；Switchable and tunable dual-line erbium- doped fiber ring laser in the C- plus L-band based on merged interference effects；IEEE Photonics Technology Letters； 22；1440-1442；2010-10-1  

8.孙国勇, Yingwu Zhou, Yihui Hu, Youngjoo Chung；Broadly tunable fiber laser based on merged Sagnac and intermodal interferences in few-mode high birefringence fiber loop mirror；IEEE Photonics Technology Letters； 22；766-768；2010-6-1  

9.Guoyong Sun（孙国勇）, Dae Seung Moon, Youngjoo Chung；Theoretical analysis of feedback high birefringence fiber loop mirror for application in single-frequency fiber lasers；Optics Communications； 283；1047-1049；2010-3-1  

10.孙国勇,周赢武, Yihui Hu and Youngjoo Ch；Theoretically analysis of Sagnac loop mirror with an inline high birefringence fiber ring resonator: Application in single-frequency fiber lasers；Optical Fiber Technology； 16；86-89；2010-2-9