Abstract
An all-fiber passively wideband-tunable nanotube Q-switched low threshold erbium doped fiber laser is presented. With a low insertion loss carbon nanotube based saturable absorber, C- and L-band tunable Q-switched lasers are achieved by tuning the transmission wavelength of one C-band tunable filter and the other L-band one, respectively. The threshold of the Q-switched operation is only 12:8mW. The selfmode- locking effect on the Q-switching can be effectively reduced by introducing a spatial hole burning effect with two optical circulators. The tunable wavelength range of the Q-switching laser can be changed by inserting a variable optical attenuator in the laser cavity to tune the gain spectrum.
Original language | English |
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Pages (from-to) | 1442-1445 |
Number of pages | 4 |
Journal | Applied Optics |
Volume | 50 |
Issue number | 10 |
DOIs | |
Publication status | Published - 1 Apr 2011 |
Externally published | Yes |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Engineering (miscellaneous)