Sapphire Photonic Crystal Waveguides with Integrated Bragg Grating Structure

This contribution demonstrates photonic crystal waveguides generated within bulk planar sapphire substrates. A femtosecond laser is used to modify the refractive index in a hexagonal pattern around the pristine waveguide core. Near-field measurements reveal single-mode behavior at a wavelength of 15...

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Bibliografski detalji

Glavni autori:	Stefan Kefer, Gian-Luca Roth, Julian Zettl, Bernhard Schmauss, Ralf Hellmann
Format:	Artigo
Jezik:	Inglês
Izdano:	MDPI AG 2022-04-01
Serija:	Photonics
Teme:	integrated photonics sapphire Bragg grating femtosecond laser photonic crystal waveguide depressed cladding
Online pristup:	https://www.mdpi.com/2304-6732/9/4/234
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