ABSTRACT
This chapter presents the operational principles and implementation of mode-locked €ber lasers operating in the nonlinear region, whether via the optical saturated ampli€cation or the photonic interactions of the pump sources and generated lightwaves. Harmonic and regenerative mode-locked types for 10 and 40 G-pulse/s employing the harmonic detuning technique for generating up to 200 G-pulses/s, and harmonic repetition multiplication
CONTENTS
8.1 Overview ..................................................................................................... 279 8.2 Introduction ................................................................................................280 8.3 Active Mode-Locked Fiber Ring Laser by Rational Harmonic
Detuning .....................................................................................................283 8.3.1 Rational Harmonic Mode Locking ..............................................283 8.3.2 Experimental Setup .......................................................................284 8.3.3 Phase Plane Analysis.....................................................................285 8.3.4 Demonstration ................................................................................288 8.3.5 Remarks ........................................................................................... 292
8.4 Repetition-Rate Multiplication Ring Laser Using Temporal Diffraction Effects ...................................................................................... 292 8.4.1 Phase Plane Analysis..................................................................... 296 8.4.2 Uniform Lasing Mode Amplitude Distribution ........................ 296 8.4.3 Gaussian Lasing Mode Amplitude Distribution ....................... 298 8.4.4 Effects of Filter Bandwidth ........................................................... 299 8.4.5 Nonlinear Effects ...........................................................................300 8.4.6 Noise Effects ...................................................................................300 8.4.7 Demonstration ................................................................................ 301 8.4.8 Remarks ...........................................................................................303
