Over the past two decades, fiber laser technologies have matured to such an extent that they
have captured a large portion of the commercial laser marketplace. Yet, there still is a …

In this paper, we summarize the research on photodarkening in optical fibers. The causes of
photodarkening in fiber, the influence of photodarkening on fiber laser, the experimental …

We use numerical simulations to investigate the effects of photodarkening (PD) on pulse
compression and coherent combination following chirped-pulse amplification in Yb-doped …

We present a microscopic model that adequately describes experimental experiences of
photodarkening (PD) investigations and is based on appropriate micro-optical mechanisms …

For constant Yb inversion and to increase pump power in the fiber core, a strong
acceleration of the photodarkening (PD) process and a reduction in PD loss have been …

In this paper, an improved mathematical model is proposed by taking the factors of high-
energy photons and temperature into consideration, which is verified and explained by the …

Photodarkening (PD) can degrade the output power and increase the thermal load in Yb-
doped fiber lasers and amplifiers by increasing the propagation loss in the core [1, 2]. PD …