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Complete characterization of ultrashort pulse sources at 1550 nm

Dudley, John M. and Barry, Liam P. and Harvey, John D. and Thomson, Mark D. and Thomsen, Benn C. and Bollond, Paul G. and Leonhardt, Rainer (1999) Complete characterization of ultrashort pulse sources at 1550 nm. IEEE Journal of Quantum Mechanics, 35 (4). pp. 441-450. ISSN 0018-9197

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This paper reviews the use of frequency-resolved optical gating (FROG) to characterize mode-locked lasers producing ultrashort pulses suitable for high-capacity optical communications systems at wavelengths around 1550 nm, Second harmonic generation (SHG) FROG is used to characterize pulses from a passively mode-locked erbium-doped fiber laser, and both single-mode and dual-mode gain-switched semiconductor lasers. The compression of gain-switched pulses in dispersion compensating fiber is also studied using SHG-FROG, allowing optimal compression conditions to be determined without a priori assumptions about pulse characteristics. We also describe a fiber-based FROG geometry exploiting cross-phase modulation and show that it is ideally suited to pulse characterization at optical communications wavelengths. This technique has been used to characterize picosecond pulses with energy as low as 24 pJ, giving results in excellent agreement with SHG-FROG characterization, and without any temporal ambiguity in the retrieved pulse

Item Type:Article (Published)
Uncontrolled Keywords:Nonlinear optics; optical fiber lasers; optical fibers; optical pulse compression; optical pulse generation; optical pulse measurements; semiconductor lasers; ultrafast optics;
Subjects:Engineering > Optical communication
Physical Sciences > Lasers
Physical Sciences > Semiconductors
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Engineering and Computing > School of Electronic Engineering
Research Initiatives and Centres > Research Institute for Networks and Communications Engineering (RINCE)
Publisher:Institute of Electrical and Electronics Engineers
Official URL:
Copyright Information:Copyright © 1999 IEEE. Reprinted from IEEE Journal of Quantum Mechanics. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the Dublin City University's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to By choosing to view this document, you agree to all provisions of the copyright laws protecting it.
ID Code:185
Deposited On:28 Jan 2008 by DORAS Administrator. Last Modified 02 Feb 2009 13:53

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