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Multiwavelength all-fiber ring laser using side-polished fiber comb filter and mechanically formed long-period fiber gratings

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2 Author(s)
Kyung-Rak Sohn ; Dept. of Radio & Inf. Commun. Eng., Korea Maritime Univ., Busan, South Korea ; Kwang Taek

Multiwavelength all-fiber lasers to be operated at room temperature are demonstrated. A side-polished fiber comb filter and mechanically formed long-period fiber gratings (LPFGs) are used to generate colasing operation. By using the band suppression characteristics of the LPFGs to prevent the gain cross-saturation effect, simultaneous lasing of four-wavelength peaks is obtained.

Published in:

Photonics Technology Letters, IEEE  (Volume:17 ,  Issue: 2 )