Dispersion-tailored active-fiber solitons: errata.

In Ref. 1, owing to an editorial error, the acronym EDDF was defined as electronic data display fiber.This expression should be replaced with exponentially dispersion-decreasing fiber throughout the text [after Eq.

Dispersion-tailored active-fiber solitons.

We show analytically that tailoring the fiber dispersion appropriately can cause optical solitons to propagate unperturbed, without emission of dispersive waves, in a distributed-gain fiber amplifier with a nonuniform gain profile. We apply our scheme to a bidirectionally pumped fiber amplifier and discuss the importance of higher-order nonlinear and dispersive effects for short solitons.

Theory of a diode laser with phase-conjugate feedback.

A single-mode diode laser subject to reflections from an externally pumped phase-conjugate mirror is theoretically investigated by using a rate-equation approach. In the phase plane defined by the amount of feedback and the frequency detuning between diode laser and phase-conjugate mirror, we found an island of locked steadystate behavior, surrounded by another type of steady-state behavior, referred to as the frequency-difference solution, and a region of self-pulsating relaxation oscillations.

Power spectrum of a bistable external-cavity diode laser.

A single-mode laser subject to weak optical feedback may become a multistable system. When the hopping rate becomes appreciable, the output power spectrum will be modified by the hopping. By applying a novel spectral theory of frequency jumps on a two-mode external-cavity semiconductor laser, we give an explicit analytical expression for the power spectrum that consists of four contributions, two of which are a weighted sum of individual quasi-mode spectra and two of which express the additional spectral broadening that is due to the jumping process.