Abstract
The L-shape waveguide was written in fused silica using a femtosecond laser with beam shaping. The guiding structure supports good light turning; 0.88 dB/turn was achieved at the silica-air interface. By using the finite-different time-domain method, the turn loss due to the turning structure and refractive index of the L-shape waveguide has been simulated. The results show that the proposed method has unprecedented flexibility in fabricating a 90°-bend waveguide.
| Original language | English |
|---|---|
| Pages (from-to) | 3470-3473 |
| Number of pages | 4 |
| Journal | Optics Letters |
| Volume | 42 |
| Issue number | 17 |
| Early online date | 30 Aug 2017 |
| DOIs | |
| Publication status | Published - 1 Sep 2017 |
Bibliographical note
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Cite this
Lv, J., Bai, J., Zhou, K., Mei, X., Wang, K., Li, M., & Cheng, G. (2017). Transmission performance of 90°-bend optical waveguides fabricated in fused silica by femtosecond laser inscription. Optics Letters, 42(17), 3470-3473. https://doi.org/10.1364/OL.42.003470