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Journal Article
Self-Wavelength Initialization Method for the Bragg-Grating Based Tunable Light Source in WDM Passive Optical Network
- Authors
- Jie Hyun Lee, Kwang Ok Kim, Seung-Il Myoung, Sang Soo Lee, Youn Seon Jang
- Issue Date
- 2011-12
- Citation
- Optics Express, v.19, no.26, pp.B522-B530
- ISSN
- 1094-4087
- Publisher
- Optical Society of America(OSA)
- Language
- English
- Type
- Journal Article
- Abstract
- We propose a self-wavelength initialization method for the waveguide Bragg-grating based tunable external cavity laser. Reflection characteristics of the Bragg-grating, and the wavelength routing property in the wavelength division multiplexing-passive optical network (WDM-PON) were used in our proposed method. By adding a cost-effective and low- power broadband light source in the central office, the tunable laser can align its output wavelength with the wavelength at the center of the pass band of the WDM multiplexer. This method can be applicable for the Bragg-grating based tunable laser, which is placed either in the central office or in the subscriber region. The operating principle and the feasibility of the proposed method were described by evaluating the transmission performance. By using our initialization method, a tunable laser with a Bragg-grating can be used as a true colorless light source for the WDM-PON. © 2011 Optical Society of America.
- KSP Keywords
- Broadband light source, Central office, Colorless light source, External cavity laser(ECL), Operating principle, Pass-band, Reflection characteristics, Tunable lasers, Wavelength routing, Wavelength-Division multiplexing(WDM), Wavelength-division-multiplexing passive optical network(WDMPON)
This work is distributed under the term of Creative Commons License (CCL)
(CC BY)
(CC BY)
