Abstract
We report a tunable dual-wavelength-switching fiber grating laser by exploiting the large homogeneous gain broadening in erbium (Er)-doped fiber to suppress simultaneous lasing. Wavelength switching was accomplished through a novel design which has two overlapping cavities sharing a single-gain medium. The loss corresponding to one of the lasing wavelengths can be modulated via an optical chopper. Output power of about 6 mW and extinction ratio up to 50 dB were observed. The lasing wavelengths were tunable and switching was demonstrated for wavelength separations ranging from 0.35 to 23.5 nm.
Original language | English |
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Pages (from-to) | 334-336 |
Number of pages | 3 |
Journal | IEEE Photonics Technology Letters |
Volume | 10 |
Issue number | 3 |
DOIs | |
Publication status | Published - 1 Mar 1998 |
Keywords
- Dual wavelength switching
- Erbium-doped fiber laser
- Fiber grating laser
- Homogeneous broadening
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering