Publication: Compact femtosecond lasers based of novel multipass cavities
Program
KU-Authors
KU Authors
Co-Authors
Kowalevicz Jr., Andrew M.
Ippen, Erich P.
Fujimoto, James G.
Publication Date
Language
Type
Embargo Status
Journal Title
Journal ISSN
Volume Title
Alternative Title
Abstract
This paper provides a comprehensive description of the design of compact femtosecond solid-state lasers that are based on novel multipass cavity (MPC) configurations to extend the resonator length. of special importance are the q-preserving MPCs, which leave invariant the original spotsize distribution and Kerr lens mode-locking point of the short cavity. The general design guidelines of q-preserving MPCs are first reviewed and a novel configuration is proposed for the case where the MPC consists of notch mirrors. A class of non-q-preserving compact cavities is also analyzed and conditions needed to minimize the deviation from the q-preserving configuration are discussed. The design and performance of a q-preserving and a non-q-preserving mode-locked Ti: Al2 O3 laser are then described as examples. These compact oscillators measuring only 30 cm × 45 cm could produce pulses as short as 19 fs at a repetition rate of around 31 MHz. Up to ∼ 3.6 nJ of pulse energy could be obtained with only ∼ 1.5 W of pump power. Finally, two-mirror MPC geometries are examined to investigate the limits of compactness and energy scaling.
Source
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Subject
Electrical engineering
Citation
Has Part
Source
IEEE Journal of Quantum Electronics
Book Series Title
Edition
DOI
10.1109/JQE.2004.826438