Low-loss flake-graphene saturable absorber mirror for laser mode-locking at sub-200-fs pulse duration
Optics
2015-06-03 v1
Abstract
Saturable absorbers are a key component for mode-locking femtosecond lasers. Polymer films containing graphene flakes have recently been used in transmission as laser mode-lockers, but suffer from high nonsaturable loss, limiting their application in low-gain lasers. Here we present a saturable absorber mirror based on a film of pure graphene flakes. The device is used to mode lock an erbium-doped fiber laser, generating pulses with state-of-the-art, sub-200-fs duration. The laser characteristic indicate that the film exhibits low nonsaturable loss (13% per pass) and large absorption modulation depth (45% of low-power absorption).
Keywords
Cite
@article{arxiv.1111.6011,
title = {Low-loss flake-graphene saturable absorber mirror for laser mode-locking at sub-200-fs pulse duration},
author = {B. V. Cunning and C. L. Brown and D. Kielpinski},
journal= {arXiv preprint arXiv:1111.6011},
year = {2015}
}