Acoustooptic coherent mode coupling in polarization-maintaining fiber and its application as a variable-polarization-dependent loss element

作者：Huang Rong^*; Alhassen Fares; Tseng David; Boyraz Ozdal; Lee Henry P

来源：IEEE Photonics Technology Letters, 2007, 19(9-12): 665-667.

DOI：10.1109/LPT.2007.894339

• acoustooptic tunable filter
• coherent coupling
• piezoelectric transducer (PZT)
• polarization-dependent loss (PDL)

In this letter, we investigate coherent acoustooptic coherent mode coupling from the LP01 core mode to LP1m cladding mode of a polarization-maintaining fiber (PMF) induced by two acoustic gratings. We show narrowband variable attenuation along either birefringent axis of the PMF by varying the relative phase between the two acoustic gratings. By launching two acoustic gratings at different frequencies, variable attenuation and low crosstalk along either birefringent axis within the acoustooptic coupling bandwidth are demonstrated.

• 出版日期2007-6