Goldberg L, Koplow J, Lancaster D G, Curl R F, Tittel F K
Optical Sciences Division, Naval Research Laboratory, Washington, DC 20375-5672, USA.
Opt Lett. 1998 Oct 1;23(19):1517-9. doi: 10.1364/ol.23.001517.
Continuous-wave mid-infrared radiation near 3.5 micrometers is generated by difference-frequency mixing of the output of a compact 1.1-1.5 micrometer dual-wavelength fiber amplifier in periodically poled LiNbO3. The diode side-pumped amplifier is constructed with double-cladding Yb-doped fiber followed by single-mode Er/Yb codoped fiber. Output powers of as much as 11 microW at 3.4 micrometers are obtained, and spectroscopic detection of CH4 and H2CO is demonstrated.
通过在周期极化铌酸锂中对紧凑型1.1 - 1.5微米双波长光纤放大器的输出进行差频混频，产生了波长接近3.5微米的连续波中红外辐射。该二极管侧面泵浦放大器由双包层掺镱光纤和单模铒/镱共掺光纤构成。在3.4微米波长处获得了高达11微瓦的输出功率，并展示了对CH4和H2CO的光谱检测。
