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Published May 10, 1993 | public
Journal Article Open

Highly nondegenerate four-wave mixing and gain nonlinearity in a strained multiple-quantum-well optical amplifier

Abstract

Highly nondegenerate four-wave mixing was investigated in a 1.5 µm compressively strained multi-quantum-well semiconductor traveling-wave optical amplifier at detuning frequencies up to 600 GHz. A gain nonlinearity with a characteristic relaxation time of 650 fs was determined from the data, and the nonlinear gain coefficient was estimated to be 4.3×10^–23 m^3. Dynamic carrier heating is believed to be the major source of nonlinear gain in this device at the wavelengths investigated.

Additional Information

©1993 American Institute of Physics (Received 19 November 1992; accepted 10 March 1993) This work was supported by the Office of Naval Research (Contract No. N00014-91-J-1524) and the Northrop Corp.

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