Saturatable absorbant with very short switching times

Details Saturatable absorbant with very short switching times Saturatable absorbant with very short switching times

1986-07-09

1988-01-19

Hearn, Brian E.

Metal treatment

Barrier layer stock material, p-n type

With contiguous layer doped to degeneracy

148 334, 148175, 148DIG65, 148DIG72, 148DIG160, 148 335, 437129, 437126, 437133, 357 16, 372 11, 372 18, 372 10, H01L 3300, H01L 3106, H01S 318

Patent

active

047203099

ABSTRACT:
This absorbant is of the type formed by superlattice constituted by a stack of films of two different semiconductor materials having gaps of different heights. Thus, a potential well is produced in each film corresponding to the semiconductor with the smallest gap and a potential barrier in each film corresponding to the semiconductor with the largest gap. This saturatable absorbant is characterized in that the films corresponding to the semiconductor with the smallest gap have a thickness, which can assume two values, one small and the other large.
Application in optics to the production of mode locking lasers and all optical logic gates.

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