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Direct Generation of a Laguerre-Gaussian-Mode Optical Vortex Beam in a Single-Frequency Nd:YVO4 Unidirectional Ring Laser
- Issue Date
- Oct-2019
- Publisher
- 한국물리학회
- Keywords
- Diode-pumped solid state lasers; Laguerre-Gaussian mode; Single-frequency laser; Optical vortices; 42; 55; Xi; 42; 55; Rz; 42; 60; Da
- Citation
- Journal of the Korean Physical Society, v.75, no.8, pp 557 - 560
- Pages
- 4
- Indexed
- SCI
SCIE
SCOPUS
KCI
- Journal Title
- Journal of the Korean Physical Society
- Volume
- 75
- Number
- 8
- Start Page
- 557
- End Page
- 560
- ISSN
- 0374-4884
1976-8524
- Abstract
- A single-frequency, unidirectional ring laser with a first order Laguerre-Gaussian (LG(01)) mode output end-pumped by using a ring-shaped pump beam is reported. This approach has been applied to a diode-pumped Nd:YVO4 laser in a traveling wave resonator configuration yielding 2.1 W and 1.5 W of single-frequency LG(01) mode outputs with helical wavefronts of left- and right-handedness, respectively. Moreover, we show that its wavefront helicity can be switched by changing the lasing direction and frequency. The selection mechanism of the wavefront helicity and the prospects of this approach are discussed.
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Related Researcher
- Kim, Ji Won
- ERICA 첨단융합대학 (ERICA 지능정보양자공학전공)