Harold

Introduction

Features

Applications

Applications

Facet heating...

The figure below is a 2D Harold simulation showing the temperature rise towards the facet of a high power laser.

Heating mechanisms in high power laser...

The figure below is an analysis of the main heating mechanisms in a high power pump laser:

P-exc : excess power - spontaneously emitted photons and scattered stimulated emission
P-nr : non-radiative recombination
P-joule : Joule heating
P-fc : free-carrier absorption