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High-Capacity DWDM-PON Using Triple-Contact F-P LDs

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5 Author(s)
Joon-young Kim ; Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea ; Ho-Sung Cho ; Sil-Gu Mun ; Hoon-Keun Lee
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We demonstrate a dense wavelength-division-multiplexing passive optical network (DWDM-PON) at 50-GHz channel spacing based on wavelength locked triple-contact Fabry-Perot laser diodes (TC F-P LDs). A transmission distance of 30 km was achieved at 1.25 Gb/s per channel. By controlling injected currents into three electrodes, we can match a lasing mode of the TC F-P LD to an injection wavelength. We also employ a prefilter before amplified spontaneous emission (ASE) injection to enhance the system performance by reducing a filtering effect. The transmission distance was limited by the back scattering. By changing a location of the seed source for upstream signal to the remote node, the transmission distance can be extended up to 60 km.

Published in:

Photonics Technology Letters, IEEE  (Volume:23 ,  Issue: 2 )

Date of Publication:

Jan.15, 2011

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