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http://dx.doi.org/10.3807/KJOP.2014.25.2.061

Characteristics of a Wavelength-swept Laser with a Polygon-based Wavelength Scanning Filter  

Ko, Myeong Ock (Department of Physics, Chungnam National University)
Kim, Namje (THz Photonics Creative Research Center, ETRI)
Han, Sang-Pil (THz Photonics Creative Research Center, ETRI)
Park, Kyung Hyun (THz Photonics Creative Research Center, ETRI)
Lee, Bong Wan (Fiberpro Inc.)
Jeon, Min Yong (Department of Physics, Chungnam National University)
Publication Information
Korean Journal of Optics and Photonics / v.25, no.2, 2014 , pp. 61-66 More about this Journal
Abstract
We report the characterization of a wavelength-swept laser (WSL) using a polygon-based wavelength scanning filter and two semiconductor optical amplifiers (SOAs). The output intensity and scanning bandwidth of the WSL depend on the position of the two SOAs in the laser cavity and the coupling ratio of the output fiber coupler. The outputs of the WSL are characterized for coupling ratios of 10%, 30%, 50%, 70%, and 90% for the output fiber coupler. In the setup in which the output fiber coupler is located between the two SOAs, high output power and wide scanning bandwidth can be achieved with an optimized configuration. Using the optimized configuration of the WSL, the intensity increases with the coupling ratio. These results can be used to construct an optimized WSL using the polygon-based wavelength scanning filter.
Keywords
Wavelength-swept laser; Semiconductor optical amplifer; Polygon-based wavelength scanning filter;
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Times Cited By KSCI : 2  (Citation Analysis)
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