Speckle reduction in multimode fiber with a piezoelectric transducer in radial vibration for fiber laser marking and display applications

2008 ◽  
Author(s):  
W. Ha ◽  
S. Lee ◽  
Y. Jung ◽  
J. Kim ◽  
K. Oh
Keyword(s):  
Fiber Laser ◽  
Piezoelectric Transducer ◽  
Speckle Reduction ◽  
Radial Vibration ◽  
Multimode Fiber ◽  
Laser Marking

scholarly journals Speckle Reduction in Near-field Image of Multimode Fiber with a Piezoelectric Transducer[Author's Correction]

2008 ◽  
Vol 12 (4) ◽  
pp. 364-364
Author(s):  
Woo-Sung Ha ◽  
Se-Jin Lee ◽  
Kyung-Hwan Oh ◽  
Yong-Min Jung ◽  
Jun-Ki Kim
Keyword(s):  
Piezoelectric Transducer ◽  
Near Field ◽  
Speckle Reduction ◽  
Multimode Fiber

scholarly journals Speckle Reduction in Near-field Image of Multimode Fiber with a Piezoelectric Transducer

2008 ◽  
Vol 12 (3) ◽  
pp. 126-130 ◽  
Author(s):  
Woo-Sung Ha ◽  
Se-Jin Lee ◽  
Kyung-Hwan Oh ◽  
Yong-Min Jung ◽  
Jun-Ki Kim
Keyword(s):  
Piezoelectric Transducer ◽  
Near Field ◽  
Speckle Reduction ◽  
Multimode Fiber

scholarly journals Tunable and Switchable Erbium-Doped Fiber Laser Using a Multimode-Fiber Based Filter

2018 ◽  
Vol 8 (7) ◽  
pp. 1135 ◽  
Author(s):  
Anum Khattak ◽  
Gerard Tatel ◽  
Li Wei
Keyword(s):  
Fiber Laser ◽  
Single Mode ◽  
Polarization Controller ◽  
Dual Wavelength ◽  
Comb Filter ◽  
Multimode Fiber ◽  
Erbium Doped ◽  
Optical Fiber Sensing ◽  
The Difference ◽  
Spectral Ranges

We demonstrated a compact tunable and switchable single/dual-wavelength erbium-doped fiber laser. The fiber laser can be tuned and switched from single-wavelength to dual-wavelength oscillation by using our recently proposed tunable comb filter. The comb filter consists of a section of multimode fiber (MMF) coiled into a polarization controller and two sections of single mode fibers (SMFs) to form a SMF/MMF/SMF structure, serving as a simple tunable all-fiber Mach-Zehnder interferometer. Due to the insertion of the MMF-based polarization controller (PC), an additional phase shift is introduced from the difference of the birefringence intensity in different dominant modes, which can be used to tune the fiber laser. In the experiment, by properly adjusting the PC, a tuning range of 9.3 nm can be achieved for the single-wavelength operation. Moreover, dual-wavelength operation with different free-spectral-ranges can be obtained. The tunable and switchable fiber lasers are of great importance for their applications in optical testing, optical fiber sensing, and signal processing.

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