The absorption and fluorescence spectra, as well as fluorescence decay lifetime of Yb3+ ion in LPS have been investigated. The absorption and fluorescence cross-sections of the transitions F-2(7/2) <-> F-2(5/2) of Yb3+ ion in LPS crystal have been determined.
The advantages of the Yb:LPS crystal including high crystal quality, quasi-four-level laser operating scheme, high absorption cross-sections (1.33 x 10(-2) cm(2)) and particularly broad emission bandwidth (similar to 62 nm) indicated that the Yb:LPS crystal seemed to be a promising candidate used as compact, efficient thin chip lasers when LD is pumped at 940 and 980 nm due to its low-symmetry monoclinic structure and single crystallographic site.
|Nd Doping Level||1%|
|Orientation||<Acut > crystalline direction|
|Surface Flatness||up to λ/10 at 633 nm|
|Parallelism||< 20 arcsec|
|Surface quality||10/5 scratch/dig
as per MIL-O-13830A
|Perpendicularity||< 5 arcmin|
|Angle tolerance||< 30 arcmin|
|Aperture tolerance||± 0.1 mm|
|Clear aperture||90% of full aperture|
|Chamfers||0.1 mm at 45 deg|
|Coating||both sides coated AR @ 1030 nm, R < 0.2%, AOI = 0 deg|