Self-frequency doubling laser performance of Nd:GdCOB crystal with a phase-matching angle out of the principal plane

Jun Hua Lü; Guang Ming Li; Jun Hai Liu; Shu Jun Zhang; Huan Chu Chen; Min Hua Jiang; Zong Shu Shao

doi:10.1088/0256-307X/16/9/011

Self-frequency doubling laser performance of Nd:GdCOB crystal with a phase-matching angle out of the principal plane

Jun Hua Lü, Guang Ming Li, Jun Hai Liu, Shu Jun Zhang, Huan Chu Chen, Min Hua Jiang, Zong Shu Shao

Materials Research Institute (MRI)

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

3 Scopus citations

Abstract

The self-frequency doubling laser performance of Nd:GdCOB crystal cut in phase-matching direction (θ = 66.3°, φ = 134.4°) was compared with the crystal cut in the direction of (θ = 90°, φ = 46°). Results show that the former has a higher second-harmonic conversion efficiency than the latter. Using Ti:sapphire laser as pumping source, a maximum of 11.3m W of green light has been obtained with an incident power of 520 mW. This corresponds to an optical-optical conversion efficiency of 2.2%. Laser threshold for self-frequency doubling operation is measured to be 1 mW. To our knowledge, this is the lowest threshold achieved so far.

Original language	English (US)
Pages (from-to)	651-652
Number of pages	2
Journal	Chinese Physics Letters
Volume	16
Issue number	9
DOIs	https://doi.org/10.1088/0256-307X/16/9/011
State	Published - 1999

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1088/0256-307X/16/9/011

Cite this

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title = "Self-frequency doubling laser performance of Nd:GdCOB crystal with a phase-matching angle out of the principal plane",

abstract = "The self-frequency doubling laser performance of Nd:GdCOB crystal cut in phase-matching direction (θ = 66.3°, φ = 134.4°) was compared with the crystal cut in the direction of (θ = 90°, φ = 46°). Results show that the former has a higher second-harmonic conversion efficiency than the latter. Using Ti:sapphire laser as pumping source, a maximum of 11.3m W of green light has been obtained with an incident power of 520 mW. This corresponds to an optical-optical conversion efficiency of 2.2%. Laser threshold for self-frequency doubling operation is measured to be 1 mW. To our knowledge, this is the lowest threshold achieved so far.",

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T1 - Self-frequency doubling laser performance of Nd:GdCOB crystal with a phase-matching angle out of the principal plane

AU - Lü, Jun Hua

AU - Li, Guang Ming

AU - Liu, Jun Hai

AU - Zhang, Shu Jun

AU - Chen, Huan Chu

AU - Jiang, Min Hua

AU - Shao, Zong Shu

PY - 1999

Y1 - 1999

N2 - The self-frequency doubling laser performance of Nd:GdCOB crystal cut in phase-matching direction (θ = 66.3°, φ = 134.4°) was compared with the crystal cut in the direction of (θ = 90°, φ = 46°). Results show that the former has a higher second-harmonic conversion efficiency than the latter. Using Ti:sapphire laser as pumping source, a maximum of 11.3m W of green light has been obtained with an incident power of 520 mW. This corresponds to an optical-optical conversion efficiency of 2.2%. Laser threshold for self-frequency doubling operation is measured to be 1 mW. To our knowledge, this is the lowest threshold achieved so far.

AB - The self-frequency doubling laser performance of Nd:GdCOB crystal cut in phase-matching direction (θ = 66.3°, φ = 134.4°) was compared with the crystal cut in the direction of (θ = 90°, φ = 46°). Results show that the former has a higher second-harmonic conversion efficiency than the latter. Using Ti:sapphire laser as pumping source, a maximum of 11.3m W of green light has been obtained with an incident power of 520 mW. This corresponds to an optical-optical conversion efficiency of 2.2%. Laser threshold for self-frequency doubling operation is measured to be 1 mW. To our knowledge, this is the lowest threshold achieved so far.

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Self-frequency doubling laser performance of Nd:GdCOB crystal with a phase-matching angle out of the principal plane

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