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Time‐domain gate based on a mach‐zehnder interferometer to reduce amplified spontaneous emissions in a continuously pumped fiber amplifier
Author(s) -
Kuroda Keiji,
Yoshikuni Yuzo
Publication year - 2014
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.28137
Subject(s) - interferometry , mach–zehnder interferometer , amplifier , materials science , optics , amplified spontaneous emission , optical amplifier , microwave , optoelectronics , physics , cmos , laser , quantum mechanics
We report reduction of amplified spontaneous emissions in a continuously pumped fiber amplifier by using a Mach–Zehnder interferometer. A reduction ratio of over 25 dB in the total emission intensity was achieved by using the interferometer. We also measured the dependence of the emission spectra on the bias voltage. Time‐resolved emissions were observed in a dual‐amplifier system containing the interferometer as a time‐domain gate. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:590–594, 2014