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Updated: Jun 22, 2026
Quasi-light Storage for Optical Data Packets
Published on: February 6, 2014
200 GHz-spacing 8-channel multi-wavelength lasers for WDM-PON optical line terminal sources
Su Hwan Oh1, Jang-Uk Shin, Ki Soo Kim
1Photonic . Wireless Convergence Components Department, Electronics and Telecommunications Research Institute, 138 Gajeongno, Yuseong-gu, Daejeon, 305-350, Republic of Korea. osh@etri.re.kr
Abstract:
We have fabricated modules of 8-channel multi-wavelength lasers (MWLs) with a wavelength separation of 200 GHz for the wavelength division multiplexed-passive optical network (WDM-PON) optical line terminal sources. The variation in the output power is minimized by inserting silicone between the superluminescent diode (SLD) and the silica waveguide. The wavelength shift of each channel is less than 0.21 nm from the ITU grid and can be controlled in the range of 0.36 nm without any reductions of the output power by a tuning heater. MWLs operated successfully in the direct modulation for 1.25 Gbit/s transmissions over 20 km.
