Cheng Kyle H Y, Standish Beau A, Yang Victor X D, Cheung K K Y, Gu Xijia, Lam Edmund Y, Wong K K Y
Photonic Systems Research Laboratory, Department of Electrical and Electronic Engineering, the University of Hong Kong, Hong Kong, China PRC.
Opt Express. 2010 Feb 1;18(3):1909-15. doi: 10.1364/OE.18.001909.
We report the first Fourier domain modelocked (FDML) laser constructed using optical parametric amplifier (OPA) in conjunction with an erbium-doped fiber amplifier (EDFA), centered at approximately 1555 nm, to the best of our knowledge. We utilize a one-pump OPA and a C-band EDFA in serial configuration with a tunable Fabry-Perot interferometer to generate a hybrid FDML spectrum. Results demonstrate a substantially better spectral shape, output power and stability than individual configurations, with decreased sensitivity to polarization changes. We believe this technique has the potential to enable several amplifiers to complement individual deficiencies resulting in improved spectral shapes and power generation for imaging applications such as optical coherence tomography (OCT).
据我们所知，我们报道了首个使用光参量放大器（OPA）与掺铒光纤放大器（EDFA）相结合构建的傅里叶域锁模（FDML）激光器，其中心波长约为1555nm。我们采用单泵浦OPA和C波段EDFA串联配置，并结合可调谐法布里 - 珀罗干涉仪来生成混合FDML光谱。结果表明，与单独配置相比，其光谱形状、输出功率和稳定性有显著改善，对偏振变化的敏感度降低。我们认为，这种技术有潜力使多个放大器相互补充各自的不足，从而为光学相干断层扫描（OCT）等成像应用带来改善的光谱形状和更高的功率输出。
