Publication: High-performance, compact, prismless, low-threshold 30-MHz Ti:Al2O3 laser
Program
KU-Authors
KU Authors
Co-Authors
Kowalevicz, AM
Kartner, FX
Fujimoto, JG
Advisor
Publication Date
2003
Language
English
Type
Journal Article
Journal Title
Journal ISSN
Volume Title
Abstract
We describe the design and operation of a compact femtosecond Ti:Al2O3 laser based on a novel multipass cavity (MPC) design. The laser is all solid state, has prismless dispersion compensation with double-chirped mirrors, and uses a tight-focusing geometry to facilitate efficient low-threshold operation. We increase output pulse energies by extending the resonator length with a compact, scalable MPC, which preserves the characteristics of the Gaussian beam for the short cavity. Although the effective cavity length is 5 m, an extremely compact laser that measures only 30 cm 3 45 cm is achieved. With only 1.5 W of pump power, the laser generates 23-fs pulses at a repetition rate of 31.25 MHz and with 88 mW of average output power, corresponding to 2.8 nJ of pulse energy.
Description
Source:
Optics Letters
Publisher:
Optical Soc Amer
Keywords:
Subject
Optics