Tunable 3.75–4.35 µm optical parametric generation using cascaded non-critical phase matching in CdSiP₂
File(s)
Published version
Author(s)
Type
Journal Article
Abstract
We demonstrate a cascaded optical parametric generation architecture based on type-I non-critical phase matching (NCPM) in CdSiP₂ producing tunable mid-wave infrared radiation in the first atmospheric transmission window. The architecture was implemented with two Nd:YAG pump lasers: a 10 Hz flashlamp-pumped system and a 1 kHz diode-pumped Nd:YAG system, generating up to 108 and 17 µJ at 3.75 µm, respectively. Temperature tuning of the second NCPM CdSiP₂ stage, with orthogonal crystal
axes to the first stage, enabled continuous wavelength tuning from 3.75 to 4.35 µm.
axes to the first stage, enabled continuous wavelength tuning from 3.75 to 4.35 µm.
Date Issued
2026-05-20
Date Acceptance
2026-04-25
Citation
Applied Optics, 2026, 65 (15), pp.5125-5130
ISSN
1559-128X
Publisher
Optica Publishing Group
Start Page
5125
End Page
5130
Journal / Book Title
Applied Optics
Volume
65
Issue
15
Copyright Statement
Published by Optica Publishing Group under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.
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Publication Status
Published
Date Publish Online
2026-05-14