Femtosecond-Laser Direct Writing of Double-Line and Tubular Depressed-Cladding Waveguides in Ultra-Low-Expansion Glass

Addressing the stability requirements of photonic integrated devices operating over wide temperature ranges, this work achieves controlled fabrication of femtosecond-laser direct-written Type II double-line waveguides and Type III depressed-cladding tubular waveguides within ultra-low-expansion LAS...

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Bibliographic Details

Published in:	Photonics
Main Authors:	Yuhao Wu, Sixuan Guo, Guanghua Cheng, Feiran Wang, Xu Wang, Yunjie Zhang
Format:	Article
Language:	English
Published:	MDPI AG 2025-08-01
Subjects:	ultra-low-expansion glass-ceramic nonlinear optics femtosecond-laser direct writing double-line waveguide depressed-cladding waveguide
Online Access:	https://www.mdpi.com/2304-6732/12/8/797