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Multiwavelength fiber laser using a Sagnac loop filter
Author(s) -
Das Gautam,
Lit John W. Y.
Publication year - 2003
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.10719
Subject(s) - polarization controller , lasing threshold , fiber laser , polarization maintaining optical fiber , optics , materials science , erbium doped fiber amplifier , dispersion shifted fiber , microwave , interferometry , laser , optoelectronics , optical fiber , fiber optic sensor , physics , optical amplifier , quantum mechanics
A Sagnac interferometer has been used in the ring cavity to produce a multiwavelength fiber laser. The results show that an elliptical‐core erbium‐doped fiber can produce more stable lasing lines compared to a normal erbium‐doped fiber. The principle of operation is based on polarization‐dependent gain phenomena in erbium‐doped fiber. The number of lasing lines and stability may be adjusted by using a polarization controller to control the polarization of the wave inside the cavity. © 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 36: 200–202, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10719