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- Title
Tunable and injection-switchable erbium-doped fiber laser of line structure.
- Authors
Daru Chen; Shan Qin; Zhangwei Yu; Sailing He
- Abstract
A tunable and injection-switchable erbium-doped fiber (EDF) laser is proposed based on a line structure formed by a fiber Sagnac loop reflector and an fiber Bragg grating (FBG). Wavelength switching is achieved by controlling the power of the tunable injection laser. The self-seeded wavelength corresponding to the Bragg wavelength of the FBG can be tuned by, for example, heating the FBG, and the injection wavelength can be tuned over a wide range of about 50 nm. The characteristics of the wavelength switching for different levels of the EDF pump power and different wavelengths of the injection laser are studied experimentally. The present fiber laser has the advantages of tunability, stability, low amplified spontaneous emission noise, and high injection efficiency when compared with a fiber ring laser. Rapid wavelength switching is expected and the transient switching response of the laser is also studied. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 765–768, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22262
- Subjects
BRAGG gratings; WAVELENGTHS; INJECTION lasers; NOISE; ELECTRIC equipment; MICROWAVES
- Publication
Microwave & Optical Technology Letters, 2007, Vol 49, Issue 4, p765
- ISSN
0895-2477
- Publication type
Article
- DOI
10.1002/mop.22262