Ultrafast laser writing quill effect in low loss waveguide fabrication regime

Abstract

Quill effect, one of the intriguing phenomena in ultrafast laser writing, to our knowledge, has not been studied in low-loss-waveguide (LLW) writing regime yet, probably due to its invisibility under conventional white-light microscope in that regime. In this report, with help of adaptive third harmonic generation microscopy we reveal the quill effect in LLW writing regime and study its influences on the properties of written photonic integrated components in term of polarization-related properties in fused silica and beam-splitting ratio of three-waveguide-coupler in borosilicate glass.

References in corpus (10)

• Experimental boson sampling in arbitrary integrated photonic circuits
• Two-particle bosonic-fermionic quantum walk via 3D integrated photonics
• Anderson localization of entangled photons in an integrated quantum walk
• Integrated photonic quantum gates for polarization qubits
• Integrated optical waveplates for arbitrary operations on polarization-encoded single-qubits
• Integrated-optics heralded controlled-NOT gate for polarization-encoded qubits
• Experimental statistical signature of many-body quantum interference
• Photonic Simulation of Entanglement Growth After a Spin Chain Quench
• Three-dimensional imaging of direct-written photonic structures
• Microscopic characterisation of laser-written phenomena for component-wise testing of photonic integrated circuits