In the paper, optical fiber-nitrogen Stimulated Raman Scatting ( SRS) gain medium is produced by diffused nitrogen at high-Temperature and high-pressure. Experimental set up for measured SRS spectrum and transmission mode photograph are given. 在实验上,对三种不同长度的石英光纤进行了高温高压扩氮制成了光纤氮拉曼增益介质,给出了测试SRS光谱的实验装置、光谱及传输模式照片。