Title :
Analysis of passive additive-pulse mode locking with eigenmode theory
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
fDate :
2/1/1992 12:00:00 AM
Abstract :
The equation of motion for the coupled cavities of additive-pulse mode locking is solved by the eigenvalue method. The pulse evolution and self-starting condition for passive operation is analyzed. It is shown that the laser configuration is equivalent to an intracavity interferometer, and a phase modulation across the pulse is the essential element for mode locking. With the method developed, transient pulse evolution of an initial seed pulse can be calculated and thereby optimized. It is found that the pulse shortening rate is linear with respect to the number of round trips. The duration for the initial pulse to shorten to a steady state is proportional to its initial width and inversely proportional to the nonlinear coefficient
Keywords :
eigenvalues and eigenfunctions; laser cavity resonators; laser mode locking; laser theory; light interferometers; optical modulation; phase modulation; coupled cavities; eigenmode theory; eigenvalue method; equation of motion; initial pulse duration; initial seed pulse; intracavity interferometer; laser configuration; laser mode locking; nonlinear coefficient; nonlinear optics; passive additive-pulse mode locking; passive operation; phase modulation; pulse evolution; pulse shortening rate; pulse width; round trips; self-starting condition; steady state; transient pulse evolution; Equations; Laser feedback; Laser mode locking; Laser theory; Optical pulse generation; Optical pulses; Phase modulation; Pulse modulation; Solid lasers; Solitons;
Journal_Title :
Quantum Electronics, IEEE Journal of
