Title :
Diode-Laser-Pumped Glass-Clad Ti:Sapphire Crystal-Fiber-Based Broadband Light Source
Author :
Hsu, Kuang-Yu ; Jheng, Dong-Yo ; Liao, Yi-Han ; Ho, Tuan-Shu ; Lai, Chien-Chih ; Huang, Sheng-Lung
Author_Institution :
Grad. Inst. of Photonics & Optoelectron., Nat. Taiwan Univ., Taipei, Taiwan
fDate :
5/15/2012 12:00:00 AM
Abstract :
Glass-clad crystal fibers were grown using the codrawing laser-heated pedestal growth method. Both single-clad and double-clad structures were attempted. Using a 446-nm laser diode as the pump, 2.45 mW of collimated broadband emission was generated with a 3-dB bandwidth of 180 nm. As much as 7.7 mW of output power with a 3-dB bandwidth of 182 nm was generated using a 532-nm solid-state pump laser. The broadband light source is advantageous to use in optical coherence tomography with an axial resolution of 1.5 in air and a low image pixel crosstalk.
Keywords :
alumina; drawing (mechanical); light sources; optical fibre cladding; optical fibre fabrication; optical glass; optical pumping; titanium; Al2O3:Ti; axial resolution; broadband light source; codrawing laser-heated pedestal growth; collimated broadband emission; diode-laser-pumping; double-clad structures; glass-clad Ti:sapphire crystal-fiber; image pixel crosstalk; optical coherence tomography; power 7.7 mW; single-clad structures; wavelength 532 nm; Annealing; Broadband communication; Crystals; Fiber lasers; Laser excitation; Optical fibers; Pump lasers; Broadband light sources; luminescent devices; optical coherence tomography; optical fiber devices;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2012.2189202
