Low-threshold dual-wavelength CW mid-IR laser from shared intracavity quasi-phase-matched OPO

Bao Te Chen; Shin Lin Tsai; Xiang Wang; Hsing Chih Liang; Chun Yu Cho

doi:10.1364/OL.486183

Low-threshold dual-wavelength CW mid-IR laser from shared intracavity quasi-phase-matched OPO

Bao Te Chen, Shin Lin Tsai, Xiang Wang, Hsing Chih Liang, Chun Yu Cho^*

^*Corresponding author for this work

Institute of Physics

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

A low-threshold continuous wave dual-wavelength mid-infrared laser is demonstrated by using an intracavity optical parametric oscillator (OPO) with a dual-wavelength pump wave. To realize a high-quality dual-wavelength pump wave, a composite Nd:YVO₄/Nd:GdVO₄ gain medium is applied for a linear polarized state and synchronization output. With the quasi-phase-matching OPO process, it is found that the dual-wavelength pump wave shares equal signal wave oscillation and leads to a lower OPO threshold. Finally, a diode threshold pumped power of barely 2 W can be achieved for the balanced intensity dual-wavelength watt-level mid-IR laser.

Original language	English
Pages (from-to)	1770-1773
Number of pages	4
Journal	Optics Letters
Volume	48
Issue number	7
DOIs	https://doi.org/10.1364/OL.486183
State	Published - 1 Apr 2023

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title = "Low-threshold dual-wavelength CW mid-IR laser from shared intracavity quasi-phase-matched OPO",

abstract = "A low-threshold continuous wave dual-wavelength mid-infrared laser is demonstrated by using an intracavity optical parametric oscillator (OPO) with a dual-wavelength pump wave. To realize a high-quality dual-wavelength pump wave, a composite Nd:YVO4/Nd:GdVO4 gain medium is applied for a linear polarized state and synchronization output. With the quasi-phase-matching OPO process, it is found that the dual-wavelength pump wave shares equal signal wave oscillation and leads to a lower OPO threshold. Finally, a diode threshold pumped power of barely 2 W can be achieved for the balanced intensity dual-wavelength watt-level mid-IR laser.",

author = "Chen, \{Bao Te\} and Tsai, \{Shin Lin\} and Xiang Wang and Liang, \{Hsing Chih\} and Cho, \{Chun Yu\}",

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T1 - Low-threshold dual-wavelength CW mid-IR laser from shared intracavity quasi-phase-matched OPO

AU - Chen, Bao Te

AU - Tsai, Shin Lin

AU - Wang, Xiang

AU - Liang, Hsing Chih

AU - Cho, Chun Yu

PY - 2023/4/1

Y1 - 2023/4/1

N2 - A low-threshold continuous wave dual-wavelength mid-infrared laser is demonstrated by using an intracavity optical parametric oscillator (OPO) with a dual-wavelength pump wave. To realize a high-quality dual-wavelength pump wave, a composite Nd:YVO4/Nd:GdVO4 gain medium is applied for a linear polarized state and synchronization output. With the quasi-phase-matching OPO process, it is found that the dual-wavelength pump wave shares equal signal wave oscillation and leads to a lower OPO threshold. Finally, a diode threshold pumped power of barely 2 W can be achieved for the balanced intensity dual-wavelength watt-level mid-IR laser.

AB - A low-threshold continuous wave dual-wavelength mid-infrared laser is demonstrated by using an intracavity optical parametric oscillator (OPO) with a dual-wavelength pump wave. To realize a high-quality dual-wavelength pump wave, a composite Nd:YVO4/Nd:GdVO4 gain medium is applied for a linear polarized state and synchronization output. With the quasi-phase-matching OPO process, it is found that the dual-wavelength pump wave shares equal signal wave oscillation and leads to a lower OPO threshold. Finally, a diode threshold pumped power of barely 2 W can be achieved for the balanced intensity dual-wavelength watt-level mid-IR laser.

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EP - 1773

JO - Optics Letters

JF - Optics Letters

IS - 7

ER -

Low-threshold dual-wavelength CW mid-IR laser from shared intracavity quasi-phase-matched OPO

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