Abstract:
This paper proposes an all-optical regenerator utilizing a novel all-optical discriminator. The impacts of nonlinearity of optical gates on discrimination performance are...Show MoreMetadata
Abstract:
This paper proposes an all-optical regenerator utilizing a novel all-optical discriminator. The impacts of nonlinearity of optical gates on discrimination performance are estimated. The evaluation of discrimination performance shows that amplified spontaneous emission noise and wave form distortion in optical signals can be effectively suppressed. We experimentally demonstrate the suppression using a low-temperature-grown optical switch up to 10 Gb/s.
Published in: Journal of Lightwave Technology ( Volume: 17, Issue: 5, May 1999)
DOI: 10.1109/50.762906
Citations are not available for this document.
Cites in Patents (2)Patent Links Provided by 1790 Analytics
1.
Hainberger, Rainer; Watanabe, Shigeki, "OPTICAL REGENERATOR IN OPTICAL FIBER COMMUNICATION SYSTEM"
Inventors:
Hainberger, Rainer; Watanabe, Shigeki
Abstract:
In an optical fiber communication system, the input power to an all-optical nonlinear device in an optical regenerator is monitored and adjusted such that the regenerator operates at an optimized operation point.
Assignee:
FUJITSU LTD
Filing Date:
30 June 2003
Grant Date:
10 August 2010
Patent Classes:
Current U.S. Class:
398097000, 398037000, 398177000
Current International Class:
H04J0140200
2.
Cho, Pak S.; Goldhar, Julius; Mahgerefteh, Daniel, "ALL OPTICAL REGENERATION AT HIGH BIT RATES USING AN ELECTROABSORPTION MODULATOR"
Inventors:
Cho, Pak S.; Goldhar, Julius; Mahgerefteh, Daniel
Abstract:
The present invention provides simultaneous all-optical regeneration (re-shape and re-amplify) and wavelength conversion using a reverse-biased electroabsorption modulator. The nonlinear optical transmission characteristic of the electroabsorption modulator reshapes the degraded input data by selective absorption of the optical noise and, therefore, increases the signal-to-noise ratio of the output. Reverse biasing the modulator allows fast recovery of the optical absorption for high data-rate operation without the detrimental bit-patterning effect. Error-free wavelength conversion and regeneration at 20 Gb/s was obtained with more than 3-dB improvement of the receiver sensitivity at a bit-error-rate of 10 -9 . Embodiments and applications of the present invention include an all-optical SEAM regenerator, an all-optical distributed feedback laser SEAM (DFB-SEAM) regenerator, an all-optical SEAM with fiber Bragg grating (SEAM-FBG) regenerator, an all-optical SEAM with polarizing beam splitter (SEAM-PBS) regenerator, an all-optical Mach-Zehnder interferometric (MZI-SEAM) regenerator, an all-optical 3-port MZI-SEAM regenerator, and a SEAM-based optimized receiver.
Assignee:
UNIVERSITY OF MARYLAND
Filing Date:
18 February 2000
Grant Date:
01 January 2002
Patent Classes:
Current U.S. Class:
359333000, 398009000
Current International Class:
H01S0030000000
