22 January 2005 Fabrication of three-dimensional photonic devices using femtosecond laser pulses
Author Affiliations +
Using tightly focused femtosecond laser pulses, we produced optical waveguide and devices in the transparent materials. This technique has the potential to generate not only channel waveguide but three-dimensional optical devices. In this paper, an optical splitter and U-grooves, which are used for fiber alignment, are simultaneously fabricated in a fused silica glass by using near-IR femtosecond laser pulses. The fiber aligned optical splitter has a low insertion loss, less than 4 dB, including intrinsic splitting loss of 3 dB and excess loss due to the passive alignment of a single-mode fiber. Finally, the utility of the femtosecond laser writing technique is demonstrated by fabricating gratings at the surface and inside the silica glass, respectively.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ik-Bu Sohn, Ik-Bu Sohn, Man-Seop Lee, Man-Seop Lee, Sang-Man Lee, Sang-Man Lee, Jung-Sik Woo, Jung-Sik Woo, Jung-Yong Jung, Jung-Yong Jung, } "Fabrication of three-dimensional photonic devices using femtosecond laser pulses", Proc. SPIE 5715, Micromachining and Microfabrication Process Technology X, (22 January 2005); doi: 10.1117/12.588501; https://doi.org/10.1117/12.588501

Back to Top