Multiwavelength erbium-doped fiber laser based on an all-fiber polarization interference filter

Hushan Wang; Zhijun Yan; Kaiming Zhou; Jiazheng Song; Ye Feng; Yishan Wang

doi:10.1117/12.2263392

23 April 2017 Multiwavelength erbium-doped fiber laser based on an all-fiber polarization interference filter

Hushan Wang, Zhijun Yan, Kaiming Zhou, Jiazheng Song, Ye Feng, Yishan Wang

Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 1032367 (2017) https://doi.org/10.1117/12.2263392
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of

Abstract

We demonstrated a compact stable room-temperature multiwavelength erbium doped fiber laser by employing a 45° tilted fiber gratings (TFGs) based all-fiber polarization interference filter. Benefiting from the filter, the channel number, the linewidth, the uniformity and stabilization of the multiwavelength laser were greatly improved. The filter also worked as a polarizing functional device in nonlinear polarization rotation leading to multiwavelength operation. More than 60 wavelengths (within 3dB bandwidth) lasing with a linewidth of 0.03nm and a signal-to-noise ratio of 31dB were obtained. The wavelength spacing was 0.164nm agreeing with the value of the filter and it can be flexibly controlled by adjusting the length of the filter.

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Hushan Wang, Zhijun Yan, Kaiming Zhou, Jiazheng Song, Ye Feng, and Yishan Wang "Multiwavelength erbium-doped fiber laser based on an all-fiber polarization interference filter", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 1032367 (23 April 2017); https://doi.org/10.1117/12.2263392

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KEYWORDS

Fiber lasers

Polarization

Optical filters

Nonlinear filtering

Interference filters

Phase modulation

Signal to noise ratio

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