On the Q-switched operation of Titanium:Sapphire lasers using a graphene-based saturable absorber mirror

• Type: Article in International Scientific Journal
• Date: 2015

Authors

Weigand, R (Author) Other; Pinto, T (Author) Other; Crespo, HM (Author) FCUP; Guerra, JM (Author) Other

Journal

Title: Optics and Laser Technology

Vol. 72

Pages: 1-5

ISSN: 0030-3992

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 4 Citations

Scopus - 4 Citations

Scientific classification

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: P-00G-DW0

DOI: 10.1016/j.optlastec.2015.03.007

Abstract (EN): We numerically demonstrate Q-switched operation of Titanium:Sapphire lasers using mono and multilayer graphene, deposited on a totally reflecting end mirror as a saturable absorber. Output energies, pulse duration and repetition frequencies of the Q-switched pulse trains are given as a function of the pump intensity for different number of graphene layers and cavity lengths. For the geometries studied, pulses from 17 to 491 ns can be achieved, with energies ranging from 11 to 74 mu J and repetition rates from 0.06 to 2.5 MHz. These results can be useful for designing and building laser cavities for Q-switched and mode-locked operation in laser media with short lifetimes as Titanium:Sapphire.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 5