All-optical sampling based on two-photon absorption in a semiconductor microcavity for high-speed OTDM

P. J. Maguire; L. P. Barry; T. Krug; M. Lynch; A. L. Bradley; J. F. Donegan; H. Folliot

doi:10.1117/12.604835

3 June 2005 All-optical sampling based on two-photon absorption in a semiconductor microcavity for high-speed OTDM

P. J. Maguire, L. P. Barry, T. Krug, M. Lynch, A. L. Bradley, J. F. Donegan, H. Folliot

Proceedings Volume 5825, Opto-Ireland 2005: Optoelectronics, Photonic Devices, and Optical Networks; (2005) https://doi.org/10.1117/12.604835
Event: OPTO-Ireland, 2005, Dublin, Ireland

Abstract

Future high-speed optical communications networks operating at data rates in excess of 100Gbit/s per channel will require a sensitive and ultrafast technique for precise optical signal monitoring. The standard way of characterising high-speed optical signals to use a fast photodetector in conjunction with a high-speed oscilloscope. However, this method is limited to a maximum data rate of approximately 40Gbit/s. An alternative is to employ all-optical sampling techniques based on ultrafast optical nonlinearities present in optical fibres, optical crystals and semiconductors. One such nonlinearity is the optical-to-electrical process of Two-Photon Absorption (TPA) in a semiconductor. This paper presents an optical sampling technique based on TPA in a specially designed semiconductor microcavity. By incorporating the microcavity design, we are able to enhance the TPA efficiency to a level that can be used for high-speed optical sampling.

Citation Download Citation

P. J. Maguire, L. P. Barry, T. Krug, M. Lynch, A. L. Bradley, J. F. Donegan, and H. Folliot "All-optical sampling based on two-photon absorption in a semiconductor microcavity for high-speed OTDM", Proc. SPIE 5825, Opto-Ireland 2005: Optoelectronics, Photonic Devices, and Optical Networks, (3 June 2005); https://doi.org/10.1117/12.604835

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available