Waveform Conversion and Wavelength Multicasting with Pulsewidth Tunability Using Raman Amplification Multiwavelength Pulse Compressor

Quynh NGUYEN QUANG NHU  Quang NGUYEN-THE  Hung NGUYEN TAN  Motoharu MATSUURA  Naoto KISHI  

Publication
IEICE TRANSACTIONS on Electronics   Vol.E98-C   No.8   pp.824-831
Publication Date: 2015/08/01
Online ISSN: 1745-1353
DOI: 10.1587/transele.E98.C.824
Type of Manuscript: Special Section PAPER (Special Section on Microwave Photonics)
Category: Advanced Photonics
Keyword: 
fiber optics and optical communication,  optical signal processing,  four-wave mixing,  pulse compression,  distributed Raman amplification,  

Full Text: PDF(1.4MB)>>
Buy this Article




Summary: 
A combination of nonreturn-to-zero (NRZ)-to-return-to-zero (RZ) waveform conversion and wavelength multicasting with pulsewidth tunability is experimentally demonstrated. A NRZ data signal is injected into a highly nonlinear fiber (HNLF)-based four-wave mixing (FWM) switch with four RZ clocks compressed by a Raman amplification-based multiwavelength pulse compressor (RA-MPC). The NRZ signal is multicast and converted to RZ signals in a continuously wide pulsewidth tuning range between around 12.17 and 4.68 ps by changing the Raman pump power of the RA-MPC. Error-free operations of the converted RZ signals with different pulsewidths are achieved with negative power penalties compared with the back-to-back NRZ signal and the small variation among received powers of RZ output channels at a bit-error-rate (BER) of 10-9. The NRZ-to-RZ waveform conversion and wavelength multicasting without using the RA-MPC are also successfully implemented.