By Topic

Efficiency equalization of up- and down-conversion four-wave mixing in a semiconductor optical amplifier using two pumps with orthogonal polarization

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

9 Author(s)
A. Mecozzi ; Fondazione Ugo Bordoni, Rome, Italy ; G. Contestabile ; F. Martelli ; L. Graziani
more authors

Summary form only given. Frequency conversion with efficiency and SNR degradation compatible with applications in optical networks has recently been obtained in optimized semiconductor optical amplifiers (SOAs) by four-wave mixing (FWM). Many problems remain however to be solved for practical applications. First, the efficiency of the conversion from high to low frequencies is low, often lower than required, because of the destructive interference between the different processes contributing to FWM. Second, most applications do not tolerate that efficiency varies as much as 10 dBs for conversion interval ranging from few tens of GHz to 2 THz. Third, a bandpass filter is required to select the converted signal at the converter output, which must be tunable if the destination frequency and/or the signal frequency change during network operation. A tunable filter is also required at the converter input to filter out the amplified spontaneous emission generated by the in-line amplifiers upstream over the bandwidth of the converted signal. Finally, the signal cannot be converted over the same frequency when FWM is used for mid-span spectral inversion. Conversion over the same frequency is desirable to avoid waste of bandwidth in systems where the bandwidth is limited by in-line erbium amplifiers. We propose a two-pump FWM scheme that solves the above problems all at once.

Published in:

Optical Fiber Communication Conference and Exhibit, 1998. OFC '98., Technical Digest

Date of Conference:

22-27 Feb. 1998