High efficiency mode-locked, cylindrical vector beam fiber laser based on a mode selective coupler

Hongdan Wan, Jie Wang, Zuxing Zhang, Yu Cai, Bin Sun, Lin Zhang

Research output: Contribution to journalArticle

Abstract

We propose and demonstrate an all-fiber passively mode-locked laser with a figure-8 cavity, which generates pulsed cylindrical vector beam output based on a mode selective coupler (MSC). The MSC made of a two mode fiber and a standard single mode fiber is used as both the intracavity transverse mode converter and mode splitter with a low insertion loss of about 0.65 dB. The slope efficiency of the fiber laser is > 3%. Through adjusting the polarization state in the laser cavity, both radially and azimuthally polarized beams have been obtained with high mode purity which are measured to be > 94%. The laser operates at 1556.3 nm with a spectral bandwidth of 3.2 nm. The mode-locked pulses have duration of 17 ns and a repetition rate of 0.66 MHz.

Original languageEnglish
Pages (from-to)11444-11451
Number of pages8
JournalOptics Express
Volume25
Issue number10
Early online date8 May 2017
DOIs
Publication statusPublished - 15 May 2017

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couplers
fiber lasers
fibers
laser cavities
insertion loss
lasers
converters
repetition
purity
pulse duration
adjusting
slopes
bandwidth
cavities
output
polarization

Cite this

Wan, Hongdan ; Wang, Jie ; Zhang, Zuxing ; Cai, Yu ; Sun, Bin ; Zhang, Lin. / High efficiency mode-locked, cylindrical vector beam fiber laser based on a mode selective coupler. In: Optics Express. 2017 ; Vol. 25, No. 10. pp. 11444-11451.
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High efficiency mode-locked, cylindrical vector beam fiber laser based on a mode selective coupler. / Wan, Hongdan; Wang, Jie; Zhang, Zuxing; Cai, Yu; Sun, Bin; Zhang, Lin.

In: Optics Express, Vol. 25, No. 10, 15.05.2017, p. 11444-11451.

Research output: Contribution to journalArticle

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