Tuning of fiber lasers by use of a single-mode biconic fiber taper

Research output: Contribution to journalArticle

51 Citations (Scopus)

Abstract

We report a novel scheme to build a compact, tunable fiber laser. The tuning mechanism is based on the transmission property of a single-mode biconic fiber taper. While pulling the taper, we observe oscillations in the transmitted optical power that are due primarily to interference between a pair of excited modes within the tapered region, which are eventually coupled into the unstretched single-mode fiber at the end of the taper. A similar mechanism causes the modulation of the transmitted optical spectrum after the taper has been pulled and stabilized. It is this spectral modulation by the taper that is exploited here to control the wavelength of a fiber laser. The modulation can be adjusted by stretching the taper, thus enabling the tuning of the laser wavelength. We have built a 32 mW Er-doped tunable ring fiber laser with a continuous tuning range of over 20 nm and a signal-to-noise ratio of better than 45 dB over the entire tuning range; our output power is limited only by the available pump power.

Original languageEnglish (US)
Pages (from-to)2435-2437
Number of pages3
JournalOptics Letters
Volume31
Issue number16
DOIs
StatePublished - Aug 15 2006

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tapering
fiber lasers
tuning
fibers
modulation
pulling
ring lasers
tunable lasers
wavelengths
optical spectrum
signal to noise ratios
pumps
interference
oscillations
causes
output
lasers

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Tuning of fiber lasers by use of a single-mode biconic fiber taper. / Kieu, Khanh Q; Mansuripur, Masud.

In: Optics Letters, Vol. 31, No. 16, 15.08.2006, p. 2435-2437.

Research output: Contribution to journalArticle

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