Analysis of passive additive-pulse mode locking with eigenmode theory

Author

Wang, Jyhpyng

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan

Volume

28

Issue

2

fYear

1992

fDate

2/1/1992 12:00:00 AM

Firstpage

562

Lastpage

568

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;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.123286

Filename

123286