Li L Yan

US Patent:

59563540, Sep 21, 1999

Filed:

Jun 6, 1996

Appl. No.:

8/659855

Inventors:

Li Yan - Columbia MD

Assignee:

The University of Maryland Baltimore County - Baltimore MD

International Classification:

H01S 3098

US Classification:

372 18

Abstract:

In a two laser media, Nd:phosphate glass and Nd:YLF are combined into a single laser. Generally, one broad band inhomogeneously broadened material and one narrow band homogeneously broadened material, with the two materials having overlapping center wavelengths are suitable. ) The phase coherence property of Nd:YLF facilitates the initial formation of a coherent pulse. The broadband property of Nd:phosphate glass supports the generation of ultrashort laser pulse. Thus, this mode-locked hybrid Nd laser generates ultrashort coherent pulses more easily and reliably.