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Conference Paper
Enhancement of Reflection Tolerance in a Bidirectional WDM-PON based on RSOA Employing Near-threshold Operated DFB Laser as a Seed Light
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- Authors
- Jie Hyun Lee, Seung-Hyun Cho, Youn Seon Jang, Sang-Soo Lee
- Issue Date
- 2010-07
- Citation
- International Conference on Optical Internet (COIN) 2010, pp.1-3
- Language
- English
- Type
- Conference Paper
- Abstract
- We successfully enhanced reflection tolerance in a single fiber bidirectional WDM-PON based on RSOA where DFB laser diode is utilized as a seeding source. We propose to operate DFB laser diode at its near threshold regime to broaden its spectral linewidth. With such a broadened linewidth, the back-reflection induced beating noise is mitigated, and we can achieve the BER below 10-10 over 20km under -32 dB link reflection.
- KSP Keywords
- Back-reflection, DFB laser, Laser diode, Single fiber, Spectral linewidth, Wavelength-division-multiplexing passive optical network(WDMPON), near-threshold