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10 Gb/s WDM Transmission at 1064 and 1550 nm over 24 km Photonic Crystal Fiber with Negative Power Penalties
Kenji KUROKAWA Kyozo TSUJIKAWA Katsusuke TAJIMA Kazuhide NAKAJIMA Izumi SANKAWA
IEICE TRANSACTIONS on Communications
Publication Date: 2007/10/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Optical Fiber for Communications
photonic crystal fiber (PCF) , wavelength division multiplexing (WDM) , chirp , optical fiber dispersion , optical losses ,
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We achieved the first 10 Gb/s WDM transmission at 1064 and 1550 nm over 24 km of photonic crystal fiber (PCF). We confirmed an improvement in the bit error rate (BER) performance after the transmission, namely "negative power penalties" of -0.5 and -0.3 dB at 1064 and 1550 nm, respectively. Our experimental result and theoretical estimation revealed that the signal degradation induced by the chromatic dispersion can be effectively suppressed by employing the pre-chirp technique with a conventional Z-cut lithium niobate (LN) modulator. We also show theoretically that we can expect to realize 10 Gb/s transmission over a 24 km PCF with negligible BER degradation in the 1060 to 1600 nm wavelength range by using the pre-chirp technique.