Investigation of the synchronization requirements for optical fibre PPM

Jaafar M. H. Elmirghani; Robert A. Cryan; F. M. Clayton

doi:10.1117/12.161500

4 November 1993 Investigation of the synchronization requirements for optical fiber PPM

Jaafar M. H. Elmirghani, Robert A. Cryan, F. M. Clayton

Proceedings Volume 1974, Transport Technologies for Broadband Optical Access Networks; (1993) https://doi.org/10.1117/12.161500
Event: Video Communications and Fiber Optic Networks, 1993, Berlin, Germany

Abstract

Self synchronization of the optical fiber n-ary PPM format entails acquiring the slot, frame frequency, and frame phase information directly from the PPM stream. Processing the PPM power spectral density can result in extracting the slot and frame frequency leaving an n^th degree frame phase ambiguity to be resolved. We identify two classes of naturally occurring PPM sequences and present a novel technique for acquiring the frame phase directly from the incoming data stream. The technique is superior to previous methods since it does not involve added code redundancy, loss in sensitivity or bit rate. The frame phase synchronizers are shown to be upgradable and thus capable of coping with the required PPM word size. Original theoretical and practical results are reported for the synchronizers. Tracking the first two additional sequences is demonstrated and shown to offer 10.4 dB improvement in the discrete frame spectral component joined with 8.4 X 10^-3 rad² reduction in the timing variance.

Citation Download Citation

Jaafar M. H. Elmirghani, Robert A. Cryan, and F. M. Clayton "Investigation of the synchronization requirements for optical fiber PPM", Proc. SPIE 1974, Transport Technologies for Broadband Optical Access Networks, (4 November 1993); https://doi.org/10.1117/12.161500

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