Injection-seeded intracavity terahertz optical parametric oscillator

D. Walsh; D. J M Stothard; T. J. Edwards; P. G. Browne; C. F. Rae; M. H. Dunn

doi:10.1364/JOSAB.26.001196

Injection-seeded intracavity terahertz optical parametric oscillator

D. Walsh^*, D. J M Stothard, T. J. Edwards, P. G. Browne, C. F. Rae, M. H. Dunn

^*Corresponding author for this work

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

30 Citations (Scopus)

Abstract

We report a terahertz (THz) source continuously tunable over ̃20 GHz with a linewidth <100 MHz (close to the transform limit of 1-10 ns pulses) and settable anywhere in the range of 1-3 THz. The source consists of an injection-seeded intracavity THz optical parametric oscillator, which exhibits the benefits of lower threshold and enhanced efficiency and power over a similar extracavity device. Linewidth control was achieved with <1 mW of seed laser power and THz pulse energies of >5 nJ observed with up to 68% downconversion of the pump wave. Spectroscopy of the 1.4969 THz carbon monoxide absorption line was performed to verify linewidth and demonstrate tuning capability.

Original language	English
Pages (from-to)	1196-1202
Number of pages	7
Journal	Journal of the Optical Society of America B: Optical Physics
Volume	26
Issue number	6
DOIs	https://doi.org/10.1364/JOSAB.26.001196
Publication status	Published - 1 Jun 2009

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abstract = "We report a terahertz (THz) source continuously tunable over{\~ }20 GHz with a linewidth <100 MHz (close to the transform limit of 1-10 ns pulses) and settable anywhere in the range of 1-3 THz. The source consists of an injection-seeded intracavity THz optical parametric oscillator, which exhibits the benefits of lower threshold and enhanced efficiency and power over a similar extracavity device. Linewidth control was achieved with <1 mW of seed laser power and THz pulse energies of >5 nJ observed with up to 68% downconversion of the pump wave. Spectroscopy of the 1.4969 THz carbon monoxide absorption line was performed to verify linewidth and demonstrate tuning capability.",

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T1 - Injection-seeded intracavity terahertz optical parametric oscillator

AU - Walsh, D.

AU - Stothard, D. J M

AU - Edwards, T. J.

AU - Browne, P. G.

AU - Rae, C. F.

AU - Dunn, M. H.

PY - 2009/6/1

Y1 - 2009/6/1

N2 - We report a terahertz (THz) source continuously tunable over ̃20 GHz with a linewidth <100 MHz (close to the transform limit of 1-10 ns pulses) and settable anywhere in the range of 1-3 THz. The source consists of an injection-seeded intracavity THz optical parametric oscillator, which exhibits the benefits of lower threshold and enhanced efficiency and power over a similar extracavity device. Linewidth control was achieved with <1 mW of seed laser power and THz pulse energies of >5 nJ observed with up to 68% downconversion of the pump wave. Spectroscopy of the 1.4969 THz carbon monoxide absorption line was performed to verify linewidth and demonstrate tuning capability.

AB - We report a terahertz (THz) source continuously tunable over ̃20 GHz with a linewidth <100 MHz (close to the transform limit of 1-10 ns pulses) and settable anywhere in the range of 1-3 THz. The source consists of an injection-seeded intracavity THz optical parametric oscillator, which exhibits the benefits of lower threshold and enhanced efficiency and power over a similar extracavity device. Linewidth control was achieved with <1 mW of seed laser power and THz pulse energies of >5 nJ observed with up to 68% downconversion of the pump wave. Spectroscopy of the 1.4969 THz carbon monoxide absorption line was performed to verify linewidth and demonstrate tuning capability.

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JO - Journal of the Optical Society of America B: Optical Physics

JF - Journal of the Optical Society of America B: Optical Physics

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Injection-seeded intracavity terahertz optical parametric oscillator

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