We propose and demonstrate an all-fiber passively mode-locked laser with pulsed cylindrical vector beam output based on a mode selective coupler (MSC) in a figure-8 cavity, 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. 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 mode-locked laser pulses have duration of 17 ns and a repetition rate of 0.66 MHz, operating near a wavelength of 1556.3 nm with a spectral bandwidth of 3.2 nm.
|Title of host publication||ICOCN 2017 - 16th International Conference on Optical Communications and Networks|
|Number of pages||3|
|Publication status||E-pub ahead of print - 1 Dec 2017|
|Event||16th International Conference on Optical Communications and Networks, ICOCN 2017 - Wuzhen, China|
Duration: 7 Aug 2017 → 10 Aug 2017
|Conference||16th International Conference on Optical Communications and Networks, ICOCN 2017|
|Period||7/08/17 → 10/08/17|
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Funding: National Science Foundation of Jiangsu Province (Nos. BK20150858,
BK20161521), the Six Talent Peaks Project in Jiangsu Province (No. 2015-XCL-023), the Talents Projects in Nanjing University of Posts and Telecommunications
(Nos. NY214002, NY215002).
- Mode-locked lasers