Pump-power dependence of transparency characteristics in semiconductor optical amplifiers

J. M. Tang; P. S. Spencer; P. Rees; K. A. Shore

doi:10.1109/3.892567

Pump-power dependence of transparency characteristics in semiconductor optical amplifiers

J. M. Tang, P. S. Spencer, P. Rees, K. A. Shore

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

A numerical investigation is performed of the characteristics of the pump-power dependent transparency carrier density of semiconductor optical amplifiers (SOAs) in pump-probe configurations. The simulations show good agreement with published experimental measurements. It is found that both gain compression due to two-photon absorption (TPA) and TPA carrier generation are crucial in determining the behavior of SOAs at transparency. In particular, a novel technique for significantly reducing the pump-power dependence of the transparency carrier density is proposed. Calculations also indicate that, by using negative frequency detuned probe and pump pulses, SOAs with fixed-transparency carrier densities can be obtained for a large pump energy range.

Original language	English (US)
Pages (from-to)	1462-1467
Number of pages	6
Journal	IEEE Journal of Quantum Electronics
Volume	36
Issue number	12
DOIs	https://doi.org/10.1109/3.892567
State	Published - Dec 2000

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1109/3.892567

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title = "Pump-power dependence of transparency characteristics in semiconductor optical amplifiers",

abstract = "A numerical investigation is performed of the characteristics of the pump-power dependent transparency carrier density of semiconductor optical amplifiers (SOAs) in pump-probe configurations. The simulations show good agreement with published experimental measurements. It is found that both gain compression due to two-photon absorption (TPA) and TPA carrier generation are crucial in determining the behavior of SOAs at transparency. In particular, a novel technique for significantly reducing the pump-power dependence of the transparency carrier density is proposed. Calculations also indicate that, by using negative frequency detuned probe and pump pulses, SOAs with fixed-transparency carrier densities can be obtained for a large pump energy range.",

author = "Tang, {J. M.} and Spencer, {P. S.} and P. Rees and Shore, {K. A.}",

note = "Funding Information: Manuscript received January 14, 2000; revised August 18, 2000. This work was supported by EPSRC under Grant GR/M65717. The authors are with the School of Informatics, University of Wales, Bangor, LL57 1UT, U.K. (e-mail: [email protected]). Publisher Item Identifier S 0018-9197(00)10551-2. Copyright: Copyright 2004 Elsevier Science B.V., Amsterdam. All rights reserved.",

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AU - Spencer, P. S.

AU - Rees, P.

AU - Shore, K. A.

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PY - 2000/12

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N2 - A numerical investigation is performed of the characteristics of the pump-power dependent transparency carrier density of semiconductor optical amplifiers (SOAs) in pump-probe configurations. The simulations show good agreement with published experimental measurements. It is found that both gain compression due to two-photon absorption (TPA) and TPA carrier generation are crucial in determining the behavior of SOAs at transparency. In particular, a novel technique for significantly reducing the pump-power dependence of the transparency carrier density is proposed. Calculations also indicate that, by using negative frequency detuned probe and pump pulses, SOAs with fixed-transparency carrier densities can be obtained for a large pump energy range.

AB - A numerical investigation is performed of the characteristics of the pump-power dependent transparency carrier density of semiconductor optical amplifiers (SOAs) in pump-probe configurations. The simulations show good agreement with published experimental measurements. It is found that both gain compression due to two-photon absorption (TPA) and TPA carrier generation are crucial in determining the behavior of SOAs at transparency. In particular, a novel technique for significantly reducing the pump-power dependence of the transparency carrier density is proposed. Calculations also indicate that, by using negative frequency detuned probe and pump pulses, SOAs with fixed-transparency carrier densities can be obtained for a large pump energy range.

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Pump-power dependence of transparency characteristics in semiconductor optical amplifiers

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