Experimental investigation of the cascadability of a cross-gain modulation wavelength converter

Xueyan Zheng, Fenghai Liu, Allan Kloch

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The cascading characteristics of a wavelength converter based on cross-gain modulation (XGM) are studied experimentally using a recirculating loop at 10 Gb/s. The maximum cascaded number of the wavelength converter converting the signal to the same wavelength is improved from five to eight by adding a fiber grating-based optical add-drop multiplexer after the semiconductor optical amplifier (SOA) to enhance the high-frequency response of the wavelength converter. However, the low-frequency degradation of the signal together with amplified spontaneous emission (ASE) noise and jitter accumulation finally limits the wavelength converter to he cascaded for more times.
Original languageEnglish
JournalI E E E Photonics Technology Letters
Issue number3
Pages (from-to)272-274
Publication statusPublished - 2000

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