Optical loop memory based on controlling the lasing of optical fiber loop amplifiers using a wavelength-tunable add/drop filter

Yoshinobu Maeda; Hirokazu Tanimoto; Hideki Nakayama

doi:10.1117/12.906925

11 October 2011 Optical loop memory based on controlling the lasing of optical fiber loop amplifiers using a wavelength-tunable add/drop filter

Yoshinobu Maeda, Hirokazu Tanimoto, Hideki Nakayama

Author Affiliations +

Proceedings Volume 8306, Photonics, Devices, and Systems V; 830609 (2011) https://doi.org/10.1117/12.906925
Event: Photonics Prague 2011, 2011, Prague, Czech Republic

Abstract

We demonstrated that the wavelength range of lasing generated in optical loop amplifiers can be controlled by varying the reflection wavelength range of an add/drop filter. Controlling the lasing wavelength range enabled the gain to be precisely controlled relative to the input wavelength. The ring-down pulse waveform exhibits similar behavior to an optical memory when the lasing region is close to the input wavelength and it is exponentially attenuated when the region is far from the input. When the optical loop memory effect is optimized, a 200 ns optical pulse can be retained in the memory for 20 μs.

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Yoshinobu Maeda, Hirokazu Tanimoto, and Hideki Nakayama "Optical loop memory based on controlling the lasing of optical fiber loop amplifiers using a wavelength-tunable add/drop filter", Proc. SPIE 8306, Photonics, Devices, and Systems V, 830609 (11 October 2011); https://doi.org/10.1117/12.906925

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KEYWORDS

Optical filters

Optical amplifiers

Wavelength tuning

Fiber amplifiers

Optical fibers

Chlorine

Current controlled current source

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