Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/196453
Title: Generation of Femtosecond Optical Vortex Beams in All-Fiber Mode-Locked Fiber Laser Using Mode Selective Coupler
Authors: Teng Wang;Feng Wang;Fan Shi;Fufei Pang;Sujuan Huang;Tingyun Wang;Xianglong Zeng
Year: 2017
Publisher: IEEE
Abstract: We experimentally demonstrated a high-order optical vortex pulsed laser based on a mode selective all-fiber fused coupler composed of a single-mode fiber (SMF) and a few-mode fiber (FMF). The fused SMF-FMF coupler inserted in the cavity acts as a mode converter from LP<sub>01</sub> mode to LP<sub>11</sub> (LP<sub>21</sub>) mode with a broadband width. Linearly polarized OAM modes can be obtained by combining different vector modes HE<sub>2,m</sub><sup>even</sup> (HE<sub>2,m</sub><sup>odd</sup>) and TE<sub>0,m</sub> (TM<sub>0,m</sub>) when l = 1 or combining HE<sup>even</sup><sub>l+ 1,m</sub> (HE<sub>l+ 1,m</sub><sup>odd</sup>) and EH<sub>l-1,m</sub><sup>odd</sup> (EH<sub>l-1,m</sub><sup>even</sup>) when l &gt; 1 with a &x03C0;/2 phase shift. To the best of our knowledge, this is the first report on the generation of high-order pulse vortex beams in a mode-locked fiber laser. The measured time duration of OVB pulses is 273 fs, 140 fs of OAM<sub>&x00B1;1</sub> and OAM<sub>&x00B1;2</sub>.
URI: http://localhost/handle/Hannan/196453
volume: 35
issue: 11
More Information: 2161,
2166
Appears in Collections:2017

Files in This Item:
File SizeFormat 
7867833.pdf2.3 MBAdobe PDF
Title: Generation of Femtosecond Optical Vortex Beams in All-Fiber Mode-Locked Fiber Laser Using Mode Selective Coupler
Authors: Teng Wang;Feng Wang;Fan Shi;Fufei Pang;Sujuan Huang;Tingyun Wang;Xianglong Zeng
Year: 2017
Publisher: IEEE
Abstract: We experimentally demonstrated a high-order optical vortex pulsed laser based on a mode selective all-fiber fused coupler composed of a single-mode fiber (SMF) and a few-mode fiber (FMF). The fused SMF-FMF coupler inserted in the cavity acts as a mode converter from LP<sub>01</sub> mode to LP<sub>11</sub> (LP<sub>21</sub>) mode with a broadband width. Linearly polarized OAM modes can be obtained by combining different vector modes HE<sub>2,m</sub><sup>even</sup> (HE<sub>2,m</sub><sup>odd</sup>) and TE<sub>0,m</sub> (TM<sub>0,m</sub>) when l = 1 or combining HE<sup>even</sup><sub>l+ 1,m</sub> (HE<sub>l+ 1,m</sub><sup>odd</sup>) and EH<sub>l-1,m</sub><sup>odd</sup> (EH<sub>l-1,m</sub><sup>even</sup>) when l &gt; 1 with a &x03C0;/2 phase shift. To the best of our knowledge, this is the first report on the generation of high-order pulse vortex beams in a mode-locked fiber laser. The measured time duration of OVB pulses is 273 fs, 140 fs of OAM<sub>&x00B1;1</sub> and OAM<sub>&x00B1;2</sub>.
URI: http://localhost/handle/Hannan/196453
volume: 35
issue: 11
More Information: 2161,
2166
Appears in Collections:2017

Files in This Item:
File SizeFormat 
7867833.pdf2.3 MBAdobe PDF
Title: Generation of Femtosecond Optical Vortex Beams in All-Fiber Mode-Locked Fiber Laser Using Mode Selective Coupler
Authors: Teng Wang;Feng Wang;Fan Shi;Fufei Pang;Sujuan Huang;Tingyun Wang;Xianglong Zeng
Year: 2017
Publisher: IEEE
Abstract: We experimentally demonstrated a high-order optical vortex pulsed laser based on a mode selective all-fiber fused coupler composed of a single-mode fiber (SMF) and a few-mode fiber (FMF). The fused SMF-FMF coupler inserted in the cavity acts as a mode converter from LP<sub>01</sub> mode to LP<sub>11</sub> (LP<sub>21</sub>) mode with a broadband width. Linearly polarized OAM modes can be obtained by combining different vector modes HE<sub>2,m</sub><sup>even</sup> (HE<sub>2,m</sub><sup>odd</sup>) and TE<sub>0,m</sub> (TM<sub>0,m</sub>) when l = 1 or combining HE<sup>even</sup><sub>l+ 1,m</sub> (HE<sub>l+ 1,m</sub><sup>odd</sup>) and EH<sub>l-1,m</sub><sup>odd</sup> (EH<sub>l-1,m</sub><sup>even</sup>) when l &gt; 1 with a &x03C0;/2 phase shift. To the best of our knowledge, this is the first report on the generation of high-order pulse vortex beams in a mode-locked fiber laser. The measured time duration of OVB pulses is 273 fs, 140 fs of OAM<sub>&x00B1;1</sub> and OAM<sub>&x00B1;2</sub>.
URI: http://localhost/handle/Hannan/196453
volume: 35
issue: 11
More Information: 2161,
2166
Appears in Collections:2017

Files in This Item:
File SizeFormat 
7867833.pdf2.3 MBAdobe PDF