Adaptive phase matching probe-injection technique for enhancement of Brillouin scattering signal

作者：Li, Hongwei; Shi, Guangyao; Lv, Yuelan; Zhang, Hongying; Gao, Wei^*

来源：Optics and Laser Technology, 2017, 93: 14-17.

DOI：10.1016/j.optlastec.2017.01.034

• Brillouin scattering
• Stimulated Brillouin amplification
• Adaptive phase matching
• Signal enhancement

We report on a simple and efficient method for enhancing Brillouin scattering signal, i.e., adaptive phase matching (APM) probe-injection technique. In this technique, a low-polarization broad-spectrum probe wave is injected opposite to the pump, which can enhance any stokes signal in its APM range instantly by selective stimulated Brillouin amplification. With advantages of simple scheme, real-time multi-signal enhancement and sweep-free measurement, this technique has a great potential for improving the signal-to-noise ratio of Brillouin gain spectrum in the Brillouin scattering application systems.

• 出版日期2017-8-1
• 单位哈尔滨工程大学; 哈尔滨学院