Narrow-bandpass filter with gain by use of twin-core rare-earth-doped fiber
Optics Letters, Vol. 18, Issue 22, pp. 1913-1915 (1993)
http://dx.doi.org/10.1364/OL.18.001913
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Abstract
We demonstrate both numerically and experimentally that rare-earth-doped twin-core fiber couplers can function as a narrow-bandpass wavelength filter or as a demultiplexer. The experimental bandwidth obtained is 6.5 nm. In addition, the filtered signal experiences a gain of 20 dB instead of attenuation.
© 1993 Optical Society of America
Citation
B. Wu and P. L. Chu, "Narrow-bandpass filter with gain by use of twin-core rare-earth-doped fiber," Opt. Lett. 18, 1913-1915 (1993)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-18-22-1913
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