Nonlinear optical element for extremely high bit rates

Details Nonlinear optical element for extremely high bit rates Nonlinear optical element for extremely high bit rates

1995-09-21

1997-11-18

Moskowitz, Nelson

Optical: systems and elements

Optical modulator

Light wave temporal modulation

257 17, 257 21, H01L 2714, G02F 1015, G02F 123

Patent

active

056893574

ABSTRACT:
The nonlinear optical element for extremely high bit rates comprises a plate made of semiconductor material, in which is there is realized a sequence of variously doped layers, which can be passed through, in operation, by one or more light radiations. The element comprises a sequence of structures which exhibit excitonic nonlinearities, and which are placed geometrically close to layers of larger sizes, which act as dilution/recombination tanks for the carriers eliminated by the nonlinear structures. The element allows realization of optical devices, such as memories, directional couplers, switches, etc., in which fast excitonic nonlinearity is very evident and in which carriers are eliminated in time intervals of 1 to 10 ps, so that the devices are able to function at extremely high bit rates. (FIG. 1 )

REFERENCES:
patent: 4957337 (1990-09-01), Ogawa et al.
patent: 5160993 (1992-11-01), Ishikawa et al.
patent: 5175739 (1992-12-01), Takeuchi et al.
patent: 5191630 (1993-03-01), Tajima
patent: 5216261 (1993-06-01), Inata et al.
patent: 5436756 (1995-07-01), Knox et al.
Vaterlein et al, J. Appl. Physi., vol. 76, #2, pp. 1184-1186, Jul. 15, 1994; abst. only herewith.
Campi et al, Proc. SPIE, vol. 2150, pp. 72-83, Jan. 24, 1994; abst. only herewith.
Campi et al, CSELT Tech. Rep (Italy), vol. 21, #4, pp. 727-740, Oct. 1993; abst. only herewith.
Tacheevelir et al, Surf. Sci (Netherlands), vol. 267, #1-3, pp. 267-269, Apr. 21, 1992; abst. only herewith.
"130 PS Recovery of All-Optical Switching in a GaAs Multiquantum Well Directional Coupler", P.LikamWa et al, Applied Physics Letters, vol.58,No.19, 3 May 1991, pp.2055-2057.
"Femtosecond Dynamics of the Nonlinear Index Near the Band Edge in A1GaAs Wavwguides", KK. Anderson et al, Applied Physics Letters, vol.56, No.19, 7 May 1991, pp.1834-1836.
"Mode Locking of Semiconductor Diode Lasers Using Saturable Excitonic Nonlinearities", P.W.Smith et al, Journal of the Optical Society of America, vol.2, No.7, Jul. 1985, pp. 1228-1236.

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