| Title: | Optical characterization of a neodymium-doped lithium-niobate-on-insulator (LNOI) | Authors: | Haunhorst, Christian Hasse, Kore Yunxin Chen, Feng Kip, Detlef |
Language: | eng | Issue Date: | 2021 | Publisher: | OSA | Document Type: | Article | Journal / Series / Working Paper (HSU): | Optical materials express | Volume: | 11 | Issue: | 12 | Page Start: | 4007 | Page End: | 4014 | Publisher Place: | Washington, DC | Abstract: | A neodymium (Nd) doped lithium-niobate-on-insulator (LNOI) was fabricated from a lithium niobate (LN) substrate diffusion-doped with Nd prior to the LNOI fabrication process. Diffusion doping enables the fabrication of differently doped regions on a single LNOI substrate, a key advantage for future applications in highly integrated photonics. Fluorescence spectra, emission cross-section, fluorescence lifetime, and small-signal gain of Nd:LNOI were determined for the first time to our knowledge and compared with data published for diffusion-doped ridge or channel waveguides in LN substrates. For an 11 mm-long sample, we achieve a small-signal gain for p (s) polarization of about 14 (10) dB when pumping with a Ti:Sapphire laser, which is promising for future active components in Nd:LNOI like amplifiers and lasers. |
Organization Units (connected with the publication): | Experimentalphysik und Materialwissenschaften | ISSN: | 2159-3930 2159-3930 |
Publisher DOI: | 10.1364/OME.440852 |
| Appears in Collections: | 3 - Publication references (without fulltext) |
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