Passively mode-locked lasers using saturable absorber incorporating dispersed single-wall carbon nanotubes

Author

Chiu, Jin-Chen ; Lan, Yi-Fen ; Kang, Jung-Jui ; Chang, Chia-Ming ; Haung, Zih-Shun ; Yeh, Chao-Yung ; Lee, Chao-Kuei ; Lin, Gong-Ru ; Lin, Jiang-Jen ; Cheng, Wood-Hi

Author_Institution

Dept. of Photonics, Nat. Sun Yat-sen Univ., Kaohsiung

fYear

2009

fDate

26-29 May 2009

Firstpage

827

Lastpage

830

Abstract

Passively mode-locked lasers using saturable absorber incorporating dispersed single-wall carbon nanotubes (SWCNTs) is demonstrated. The peak absorption wavelength of saturable absorber can be engineered within the gain band-width of erbium-doped fiber (EDF) centered at 1550 nm. The mean diameter of SWCNTs and the linear optical absorption of SWCNTs-polyvinyl alcohol (PVA) film are verified by Raman spectroscopy and UV-Visible-NIR spectrophotometer. By integrating the SWCNTs-PVA film into EDF ring laser (EDFL) centered at 1550 nm, we observed three pulse mode operations, Q-switching, mode-locking, and 5^th-order harmonic mode-locking. The measured pulsewidths of the mode-locking and 5^th harmonic mode-locking EDFL are 4.2 ps and 2.7 ps, respectively.

Keywords

Q-switching; Raman spectra; carbon nanotubes; fibre lasers; filled polymers; infrared spectra; laser mode locking; optical saturable absorption; polymer films; ultraviolet spectra; visible spectra; 5th-order harmonic mode-locking; C; Q-switching; Raman spectroscopy; SWCNT-polyvinyl alcohol film; UV-Visible-NIR spectrophotometry; absorption wavelength; dispersed single-wall carbon nanotubes; erbium-doped fiber ring laser; gain bandwidth; linear optical absorption; passively mode-locked lasers; pulse mode operations; saturable absorber; wavelength 1550 nm; Absorption; Carbon nanotubes; Erbium-doped fiber lasers; Laser mode locking; Optical films; Optical pulses; Pulse measurements; Raman scattering; Ring lasers; Spectroscopy;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronic Components and Technology Conference, 2009. ECTC 2009. 59th

Conference_Location

San Diego, CA

ISSN

0569-5503

Print_ISBN

978-1-4244-4475-5

Electronic_ISBN

0569-5503

Type

conf

DOI

10.1109/ECTC.2009.5074107

Filename

5074107