Abstract

Waveguide based solid-state lasers are key components in the quest to realise a compact, robust fully integrated optical circuit with advanced functionality including pulsed operation. Ta2O5 has been a promising host material for the realization of an integrated rare-earth doped waveguide laser as it offers many important attributes such as good ability to host rare-earth ions, a high refractive index (n ≈ 2.124 at λ ≈ 980 nm) and a large third order nonlinearity [1]. Here, we present an integrated rib waveguide laser in Yb:Ta2O5 with quantification of the laser slope efficiency and threshold in respect to absorbed pump power as well as presenting its lasing spectrum. Symmetrical rib waveguides with a thickness of 1 μm defined by a shallow etch of 150 nm were fabricated in Yb:Ta2O5 and encapsulated in silica cladding. These waveguides were designed for single mode operation for wavelengths ranging from 970 nm to 1100 nm, covering typical operational regions of Yb-doped materials. The fabrication process used conventional CMOS technologies which have been previously reported in [1], where spectroscopic characterisation of similar Yb-doped waveguides was included.

© 2015 IEEE

PDF Article
More Like This
Ytterbium-Doped Tantalum Pentoxide Waveguides: Spectroscopy for Compact Waveguide Lasers

A. Aghajani, G. S. Murugan, N. P. Sessions, V. Apostolopoulos, and J. S. Wilkinson
AM4A.38 Advanced Solid State Lasers (ASSL) 2013

A Thulium-Doped Tantalum Pentoxide Waveguide Laser

Colin J Mitchell, Amy SK Tong, Neil P Sessions, James S Wilkinson, and Jacob I Mackenzie
NoW2A.3 Novel Optical Materials and Applications (NOMA) 2021

Nonlinear optical properties of ytterbium-doped tantalum pentoxide rib waveguides on silicon at telecom wavelengths

C. Lacava, A. Aghajani, P. Hua, D.J. Richardson, P. Petropoulos, and J. S. Wilkinson
W4E.4 Optical Fiber Communication Conference (OFC) 2016

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription