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Optical Engineering

Long-reach transmission experiment of a wavelength division multiplexed-passive optical networks transmitter based on reflective semiconductor optical amplifiers
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Paper Abstract

We propose and demonstrate a long-reach wavelength division multiplexed-passive optical networks (WDM-PON) based on reflective semiconductor optical amplifiers (RSOAs) with easy maintenance of the optical source. Unlike previous studies the proposed WDM-PON uses two RSOAs: one for wavelength-selected light generation to provide a constant seed light to the second RSOA, the other for active external modulation. This method is free from intensity-fluctuated power penalties inherent to directly modulated single-RSOA sources, making long-reach transmission possible. Also, the wavelength of the modulated signal can easily be changed for the same RSOA by replacing the external feedback reflector, such as a fiber Bragg grating, or via thermal tuning. The seed light has a high-side-mode suppression ratio (SMSR) of 45 dB, and the bit error rate (BER) curve reveals that the upstream 1.25-Gb/s nonreturn-to-zero (NRZ) signal with a pseudo-random binary sequence (PRBS) of length of 215-1 has power penalties of 0.22 and 0.69 dB at BERs of 10-9 after 55-km and 110-km transmission due to fiber dispersion, respectively.

Paper Details

Date Published: 31 January 2012
PDF: 6 pages
Opt. Eng. 51(1) 015008 doi: 10.1117/1.OE.51.1.015008
Published in: Optical Engineering Volume 51, Issue 1
Show Author Affiliations
Sie-Wook Jeon, Gwangju Institute of Science and Technology (Korea, Republic of)
Youngbok Kim, Gwangju Institute of Science and Technology (Korea, Republic of)
Chang-Soo Park, Gwangju Institute of Science and Technology (Korea, Republic of)


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