Details

Autor(en) / Beteiligte

• Jiang, Youchao
• Ren, Guobin
• Xu, Yao
• Jin, Wenxing
• Wu, Yue
• Shen, Ya
• Yang, Yuguang
• Jian, Shuisheng

Titel

Measuring Vector Modal Content of Vortex Fibers

Ist Teil von

• IEEE photonics technology letters, 2017-11, Vol.29 (21), p.1804-1807

Ort / Verlag

IEEE

Erscheinungsjahr

2017

Quelle

IEEE Xplore

Beschreibungen/Notizen

• We present a method based on spatial and spectral (S 2 ) imaging technique to measure the vector modal content of vortex fibers. Different vector modes can be told apart and their modal contents can be determined by implementing the S 2 imaging process four times with four different polarizer directions. Moreover, the orbital angular momentum modes (OAMs) can be observed directly through the spiral phase patterns without interference process, and the OAM mode purity can be obtained from the intensity and phase patterns.