Sensitive absorption measurements of hydrogen sulfide at 1.578 μm using wavelength modulation spectroscopy*
Xia Hua, Dong Feng-Zhong†, Wu Bian, Zhang Zhi-Rong, Pang Tao, Sun Peng-Shuai, Cui Xiao-Juan, Han Luo, Wang Yu
       
Linearity of the measurement system. The fitting is given by y = 0.00143 + 7.52459 x with 0.998 fitting coefficient.