Abstract
A fiber Bragg grating is inscribed in a two-mode fiber using a 193-nm excimer
laser and a phase mask. Strong LP01 and LP11 mutual coupling as large as 22.5 dB,
which corresponds to a modal conversion efficiency of more than 99%, is experimentally
achieved. The intermodal coupling mechanism is theoretically analyzed through a finite
element method. This device can be used as a low-cost reflective LP01 $ LP11 converter.
laser and a phase mask. Strong LP01 and LP11 mutual coupling as large as 22.5 dB,
which corresponds to a modal conversion efficiency of more than 99%, is experimentally
achieved. The intermodal coupling mechanism is theoretically analyzed through a finite
element method. This device can be used as a low-cost reflective LP01 $ LP11 converter.
Original language | English |
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Pages (from-to) | 1080-1086 |
Journal | IEEE Photonics Journal |
Volume | 4 |
Issue number | 4 |
DOIs | |
Publication status | Published - 4 Apr 2012 |