Optimisation of microstructured waveguides in z-cut LiNbO3 crystals

2014/02/19 by Huseyin Karakuzu, Karakuzu, Huseyin, Mykhaylo Dubov +7
Engineering · Physics and Astronomy · #FOS: Physical sciences #Laser Material Processing Techniques #Optics (physics.optics) #Photonic and Optical Devices #Photorefractive and Nonlinear Optics #physics.optics

paper · pdf · doi:10.48550/arxiv.1402.4717

12 pages; 9 figures; to be submitted to Optical Material Express

arxiv created 2014/02/19 · openalex publication_date 2014/02/19 · arxiv updated 2014/02/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We present a practical approach to the numerical optimisation of the guiding properties of buried microstructured waveguides, which can be fabricated in a z-cut lithium niobate (LiNbO3) crystal by the method of direct femtosecond laser inscription. We demonstrate the possibility to extend the spectral range of low-loss operation of the waveguide into the mid-infrared region beyond 3μm.

Related

• Fabrication of polarization-independent single-mode waveguides in lithium niobate crystal with femtosecond laser pulses
• Modeling of the refractive index profile of a femtosecondwritten waveguide in LiNbO3
• Electro optic effect measurements for waveguide inscribed in X-cut LiNbO3 substrate using femtosecond laser direct writing process
• Tightly-confined and long Z-cut lithium niobate waveguide with ultralow-loss
• Fabrication of polarization-independent waveguides deeply buried in crystal using aberration-corrected femtosecond laser direct writing