In this paper, a novel WDM-to-OTDM conversion system which has a simple setup is proposed. The system is a type of fiber loop consisting of an optical single-side-band (SSB) modulator that is driven by a RF signal source at 10 GHz, a fiber circulator, a single mode fiber coupler, a fiber amplifier and an ultra-narrowband high reflectivity fiber Bragg grating (FBG). The multi-wavelength WDM signals with the spectral sampling interval of 10 GHz (0.08 nm at 1550 nm) is inputted into the system and can be transformed to an OTDM signal carried by one wavelength. The advantages of this multi-wavelength conversion system are that the requirement for the input optical power is low, the wavelength conversion is fast due to the optic-electro effect in a nonlinear optical crystal and the system configuration is compact without need of time delay lines.

Date Published: 21 February 2011
PDF: 11 pages
Proc. SPIE 7936, RF and Millimeter-Wave Photonics, 79360M (21 February 2011); doi: 10.1117/12.875269

Published in SPIE Proceedings Vol. 7936:
RF and Millimeter-Wave Photonics
Robert L. Nelson; Dennis W. Prather; Christopher A. Schuetz, Editor(s)