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All-fiber tunable comb filter with nonreciprocal transmission

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3 Author(s)
In Kag Hwang ; Dept. of Phys., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea ; Seok Hyun Yun ; Byoung Yoon Kim

We demonstrate an all-fiber nonreciprocal comb filter by using two acoustooptic frequency shifters and a two-mode fiber interferometer. The transmission spectra for two opposite optical propagation directions are both periodic functions of optical wavelength, but different in transmission peak wavelengths. Methods for controlling the spacing and position of the transmission peak wavelengths are demonstrated.

Published in:

Photonics Technology Letters, IEEE  (Volume:10 ,  Issue: 10 )