Han, YG Tran, TVA Lee, SB 2024-01-21T03:32:39Z 2024-01-21T03:32:39Z 2021-09-02 2006-03-15 0146-9592 https://pubs.kist.re.kr/handle/201004/135655 We experimentally demonstrate a wavelength-spacing tunable multiwavelength erbium-doped fiber laser based on degenerate four-wave mixing in a dispersion-shifted fiber incorporating multiple-fiber Bragg gratings. We have achieved stable operation of the multiwavelength erbium-doped fiber laser, which has 0.8 mn spacing ten-channel lasing wavelengths and a high extinction ratio of more than similar to 45 dB, at room temperature. The output power of the multiwavelength erbium-doped fiber laser is stable, so the peak fluctuation is less than similar to 0.2 dB. By changing the properties such as loss and polarization state of multiple fiber Bragg grating cavities, we can exercise flexible control of the wavelength spacing of the multiwavelength output. We can also obtain switchable multiwavelength lasing operation by elimination of the effects of alternate single-fiber Bragg gratings. (c) 2006 Optical Society of America. English OPTICAL SOC AMER RING LASER MULTIWAVELENGTH TEMPERATURE GRATINGS NM Wavelength-spacing tunable multi wavelength erbium-doped fiber laser based on four-wave mixing of dispersion-shifted fiber Article 10.1364/OL.31.000697 1 OPTICS LETTERS, v.31, no.6, pp.697 - 699 OPTICS LETTERS 31 6 697 699 scie scopus 000235833400007 2-s2.0-33645727859 Optics Optics Article RING LASER MULTIWAVELENGTH TEMPERATURE GRATINGS NM