Fundamental limits of sub-ps pulse generation by active mode locking of semiconductor lasers: the spectral gain width and the facet reflectivities

1991 ◽  
Vol 27 (6) ◽  
pp. 1661-1668 ◽  
Author(s):  
M. Schell ◽  
A.G. Weber ◽  
E. Scholl ◽  
D. Bimberg
Keyword(s):  
Semiconductor Lasers ◽  
Mode Locking ◽  
Pulse Generation ◽  
Fundamental Limits ◽  
Active Mode

Anomalous dynamics of active mode-locking in ring lasers with semiconductor optic amplifiers

2017 ◽  
Vol 26 (02) ◽  
pp. 1750017
Author(s):  
Yu. N. Parkhomenko ◽  
B. Spektor ◽  
J. Shamir
Keyword(s):  
Semiconductor Lasers ◽  
Energy Efficient ◽  
Mode Locking ◽  
Dynamic Chaos ◽  
Finite Width ◽  
Control Parameters ◽  
Active Mode ◽  
Ring Lasers ◽  
Bifurcation Line ◽  
Anomalous Dynamics

The pulses development dynamics, including their bifurcation into two-pulse complexes, was investigated in ring semiconductor lasers with amplitude modulation, operating on harmonics. New unusual properties of active mode-locking were revealed. They indicate significantly different dynamics of lasers operating on the first harmonic and those operating on any higher harmonic. The domain of control parameters for single pulses of higher harmonics is split into two domains: the dynamic boundary layer of finite width adjacent to the bifurcation line and the domain of dynamic chaos. Such layers engender stable dynamic sync-bands. We found conditions to implement energy-efficient sync-bands with optimum pulse parameters.

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