Title :
A fiber laser with a comb-like spectrum
Author :
Ghera, Uri ; Friedman, Nir ; Tur, Moshe
Author_Institution :
Fac. of Eng., Tel Aviv Univ., Israel
Abstract :
An unpolarized comb-like spectrum is emitted from a fiber laser constructed from a Nd-doped silica fiber connected to an undoped high-birefringence fiber. Depending on the overall birefringence of the high-birefringence fiber, spectral spacings of 0.8 nm to 4 nm between two adjacent wavelengths were obtained, with as many as eight simultaneous discrete peaks. No intracavity polarizing elements were used, and the observed spectral characteristics are due to parasitic reflections at the interface between the two fibers.<>
Keywords :
birefringence; fibre lasers; reflectivity; refractive index; 0.8 to 4 nm; Nd-doped silica fiber; adjacent wavelengths; fiber laser; fibre interface; parasitic reflections; simultaneous discrete peaks; spectral characteristics; spectral spacings; undoped high-birefringence fiber; unpolarized comb-like spectrum; Birefringence; Erbium-doped fiber lasers; Fabry-Perot; Fiber lasers; Laser modes; Laser theory; Optical fiber devices; Optical fiber polarization; Optical filters; Power lasers;
Journal_Title :
Photonics Technology Letters, IEEE
