Donghwan Kim

Ultrahigh-speed clock recovery with optical phase lock loop based on four-wave-mixing in a semiconductor optical amplifier

Jae Cheol Jo, Sang Hyuck Kim, Donghwan Kim, 2000 .

Relaxation-free harmonically mode-locked semiconductor-fiber ring laser

Seong Yun Ko, Young Min Jhon, Jae Cheol Jo, 1999 .

Transient modelling of double-pumped phase conjugation in inverted Nd:YAG

K. S. Syed, D. Udaiyan, Michael J. Damzen, 1996 .

Gain control in erbium-doped fibre amplifiers by tuning centre wavelength of a fibre Bragg grating constituting resonant cavity

Jung Ho Park, Seong Yun Ko, Jae Cheol Jo, 1998 .