All-optical 2R regeneration using passive saturable absorption

✍ Scribed by Quang Trung Le; Arthur O’Hare; Nguyen Hoang Trung; Laurent Bramerie; Mathilde Gay; Guy Aubin; Hary Ramanitra; Michel Joindot; Jean-Louis Oudar; Jean-Claude Simon

• Publisher: Elsevier Science
• Year: 2009
• Tongue: English
• Weight: 700 KB
• Volume: 282
• Category: Article
• ISSN: 0030-4018
• DOI: 10.1016/j.optcom.2009.04.009

✦ Synopsis

This paper reports on the regenerative properties and efficiency of an all-optical 2R regenerator based on a tandem of saturable absorber (SA) chips. A new SA structure allowing mark level equalization, which is a complement to the function of extinction ratio enhancement of the classical SA structure, is described. The experimental results at 42.6 Gbit/s show that amplitude fluctuations on both low and high power levels are significantly reduced with the SA tandem regenerator, and the system margin improvements in terms of receiver sensitivity and Q factor are obtained.