Automatic gain control of semiconductor laser amplifiers

L. ESKILDSEN; D. S. OLESEN; B. MIKKELSEN; J. FARRE; T. DURHUUS; Z. WANG; P. B. HANSEN; K. E. STUBKJAER

Conference on Lasers and Electro-Optics
OSA Technical Digest (Optica Publishing Group, 1990),
paper CFD6

Automatic gain control of semiconductor laser amplifiers

L. ESKILDSEN, D. S. OLESEN, B. MIKKELSEN, J. FARRE, T. DURHUUS, Z. WANG, P. B. HANSEN, and K. E. STUBKJAER

Conference on Lasers and Electro-Optics 1990

Baltimore, Maryland United States
21–25 May 1990
ISBN: 1-55752-131-X

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Optical Amplifiers (CFD)

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L. ESKILDSEN, D. S. OLESEN, B. MIKKELSEN, J. FARRE, T. DURHUUS, Z. WANG, P. B. HANSEN, and K. E. STUBKJAER, "Automatic gain control of semiconductor laser amplifiers," in Conference on Lasers and Electro-Optics, T. Giallorenzi, S. Guch, Jr., A. Johnson, and R. Lind, eds., Vol. 7 of OSA Technical Digest (Optica Publishing Group, 1990), paper CFD6.

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Abstract

Automatic gain or power control (AGC/APC) is preferred to ensure proper system operation when laser amplifiers are used in optical communication systems.¹ The AGC/APC must compensate for the gain dependence on signal wavelength, polarization, input power, and amplifier temperature² as well as device degradation. An APC based on transmission of a 10-kHz pilot tone has been demonstrated.³ A pilot tone may, however, not always be available, and here we report on the direct approach to AGC/APC requiring no pilot tone.

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