Single 25 ps/16 W optical pulses were achieved by spectral filtering from a multiheterostructure gain-switched laser diode with its quasisteady-state modes suppressed by a factor of 103 as compared with the peak power. A significant transient spectrum broadening makes this possible provided that a very high dI/dt rate of the pumping current pulse is used. A simple numerical model is suggested which describes adequately both the spectral and transient features of the observed phenomenon. It follows from the model that single picosecond optical pulses can be obtained from any type of high power semiconductor laser.
Published in Journal of Applied Physics, Volume 84, Issue 8, 1998, pages 4109-4113.
©Journal of Applied Physics 1998, American Institute of Physics (AIP).
Vainshtein, S. N., Simin, G. S., & Kostamovaara, J. W. (15 October 1998). Deriving of Single Intensive Picosecond Optical Pulses from a High-Power Gain-Switched Laser Diode by Spectral Filtering. Journal of Applied Physics, 84 (8), 4109-4113. http://dx.doi.org/10.1063/1.368692