Wideband-tunable nanotube Q-switched low threshold erbium doped fiber laser

Bo Dong, Junhao Hu, Chin Yi Liaw, Jianzhong Hao, Changyuan Yu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

45 Citations (Scopus)


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 languageEnglish
Pages (from-to)1442-1445
Number of pages4
JournalApplied Optics
Issue number10
Publication statusPublished - 1 Apr 2011
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)


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