Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1540604 | Optics Communications | 2009 | 4 Pages |
Abstract
We experimentally demonstrated a new structure of a multiwavelength semiconductor optical amplifier (SOA) ring laser based on a fiber Sagnac loop filter that can generate up to 25 stable output lasing wavelengths at room temperature. By varying the length of a polarization-maintaining (PM) fiber within the Sagnac loop filter, the wavelength spacing between the output lasing wavelengths can be changed to a desired value. By tuning a polarization controller (PC) within the Sagnac loop filter, stable multiwavelength 1550-nm operation with up to 17 lasing lines within 3Â dB power level variation and with a wavelength spacing of â¼0.8Â nm was achieved. The optical signal-to-noise ratios (OSNRs) of all the lasing wavelengths are greater than 40Â dB.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
D. Liu, N.Q. Ngo, H. Liu, D. Liu,