The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 20, 2014
Filed:
Nov. 28, 2008
John Redvers Clowes, Sway, GB;
Anatoly Borisovich Grudinin, Southampton, GB;
Pascal Dupriez, Southampton, GB;
John Redvers Clowes, Sway, GB;
Anatoly Borisovich Grudinin, Southampton, GB;
Pascal Dupriez, Southampton, GB;
Fianium Ltd., Southampton, GB;
Abstract
A source of femtosecond laser pulses () comprising a 980 nm picosecond seed pulse source (), a Ytterbium (Yb) doped fiber amplifier () operating in the three-level regime, a passive air-clad fiber () and a pulse compressor (). The seed pulses are spectrally broadened due to self phase modulation (SPM) in the air-clad Yb doped fiber () and further broadened due to SPM in the passive core of the passive air-clad fiber (), to produce sufficient spectral broadening to allow the pulses to be compressed in the dispersion compensator () into femtosecond pulses. The Yb doped fiber may have a phosphosilicate host composition in order to mitigate photodarkening.