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Ultra-sensitive all-optical sampling at 1.5 μm using waveguide two-photon absorption

Thomsen, Benn C. and Barry, Liam P. and Dudley, John M. and Harvey, John D. (1999) Ultra-sensitive all-optical sampling at 1.5 μm using waveguide two-photon absorption. Electronics Letters, 35 (17). pp. 1483-1484. ISSN 0013-5194

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We demonstrate a simple and ultra-sensitive all-optical sampling system suitable for the characterization of high capacity (> 100 Gbit/s) single channel systems operating around 1.5 µm. The system is based on the nonlinear effect of two-photon-absorption in a commercial 1.3 µm semiconductor laser and, using only direct detection of the unamplified two photon absorption photocurrent, we have achieved a temporal resolution of around 2 ps, and a sensitivity of less than 2 mW².

Item Type:Article (Published)
Subjects:Engineering > Optical communication
Engineering > Telecommunication
Physical Sciences > Lasers
Physical Sciences > Photonics
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:Institution of Engineering and Technology
Official URL:
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
ID Code:136
Deposited On:16 Jan 2008 by DORAS Administrator. Last Modified 02 Feb 2009 11:04

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