講演情報
[8p-P07-5]Broad-band yellow-green light source generated by diode-pumped Ce:YAG crystal fiber
〇Yin-Wen Lee1, Sz-Hau Chen1, Sheng-Lung Huang2, Ja-Hon Lin1, Rui-Lun Huang1 (1.National Taipei University of Technology, 2.National Taiwan University)
キーワード：
crystal fiber、visible OCT
Optical Coherence Tomography (OCT) is a non-invasive imaging technique providing micrometer-scale resolution. However, the development of suitable broadband sources for visible OCT remains a challenge. Conventional supercontinuum sources are often costly and noisy, while superluminescent diodes have limited spectral coverage in the critical yellow-green range. We have demonstrated a broadband yellow-green light source based on a Ce: YAG crystal fiber to address this gap. The source produced a maximum output power of 16.9 mW centered at 550 nm, achieving an optical-to-optical efficiency of 2.7% and a broad FWHM bandwidth of 112.3 nm. The source's high brightness is advantageous for high-resolution visible OCT. This approach offers key advantages, including high luminance, excellent thermal stability, and a smooth, peak-free spectral profile essential for high-quality imaging.