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Updated: Jul 4, 2026
Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy
Published on: November 22, 2019
Cost-effective colorless WDM-PON delivering up/down-stream data and broadcast services on a single wavelength using
Ho-Chul Ji1, Ikuo Yamashita, Ken-Ichi Kitayama
1Graduate School of Engineering, Department of Electrical, Electrical and Information Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan. hcji5002@gmail.com
Abstract:
We propose and demonstrate for the first time a cost-effective and colorless wavelength-division-multiplexed passive optical network which can provide a full-duplex 155-Mb/s up/downstream data and broadcast signals on a single wavelength using light-injected optical sources and bidirectional transmission in a single fiber. The optical sources for downstream and upstream baseband data are Fabry-Perot laser diode (FPLD) at the central office and a reflective semiconductor optical amplifier (RSOA) at each optical network unit, respectively. The broadband light source (BLS) for the downstream is implemented by using mutually injected FPLDs. The transmission experiment shows that the error-free operation for baseband data and a high-quality broadcast signal with 3-dB CNR margin can be obtained.
