1. Multiwavelength erbium-doped fiber laser based on an all-fiber polarization interference filter
- Author
-
Jiazheng Song, Ye Feng, Hushan Wang, Kaiming Zhou, Yishan Wang, and Zhijun Yan
- Subjects
Interference filter ,Optical fiber ,Materials science ,business.industry ,Physics::Optics ,Polarization-maintaining optical fiber ,02 engineering and technology ,01 natural sciences ,law.invention ,010309 optics ,Laser linewidth ,020210 optoelectronics & photonics ,Optics ,Fiber Bragg grating ,law ,Fiber laser ,0103 physical sciences ,0202 electrical engineering, electronic engineering, information engineering ,Optoelectronics ,Dispersion-shifted fiber ,business ,Photonic-crystal fiber - 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.
- Published
- 2017