Abstract
Delay-induced complex dynamics in lasers have been investigated in various schemes, such as rich phenomena, in semiconductor lasers with external feedback,1 and quasiperiodicity in CO2 lasers with electro-optic feedback.2 Recently, we proposed high-speed picosecond pulse generation in semiconductor lasers with incoherent delayed feedback.3 The basic idea was derived from successive carrier modulation by delayed feedback light whose polarization direction is rotated to be orthogonal to the lasing light. Such a feedback scheme is referred to as incoherent feedback.4 We showed theoretically that periodic spiking oscillations can be excited in a short-delay regime, i. e., delay time ≪ carrier lifetime. In this paper, we extend this scheme to general class-B lasers and investigate dynamics in wide parameter regions.
© 1992 Optical Society of America
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