Ultrahighly sensitive laser-Doppler velocity meter with a diode-pumped Nd:YVO4 microchip laser

S. Okamoto; H. Takeda; F. Kannari

doi:10.1063/1.1145539

Ultrahighly sensitive laser-Doppler velocity meter with a diode-pumped Nd:YVO₄ microchip laser

S. Okamoto, H. Takeda, F. Kannari

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

34 Citations (Scopus)

Abstract

Extremely high sensitivity of a diode-pumped microchip Nd:YVO₄ laser to external light injection is demonstrated in optical detection of Doppler shift from a moving object. Intensity modulation induced by reflected scattered light from a rotating object at the Doppler-shift frequency is measured for a 1-mm-long diode-pumped Nd:YVO₄ laser. When adjusting the diode pump power so that the relaxation oscillation frequency is resonant to the Doppler-shift frequency, the minimum detectable intensity of scattered light injected back into the microchip laser can be <-170 dB weaker than the intracavity laser intensity.

Original language	English
Pages (from-to)	3116-3120
Number of pages	5
Journal	Review of Scientific Instruments
Volume	66
Issue number	5
DOIs	https://doi.org/10.1063/1.1145539
Publication status	Published - 1995
Externally published	Yes

ASJC Scopus subject areas

Instrumentation

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10.1063/1.1145539

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title = "Ultrahighly sensitive laser-Doppler velocity meter with a diode-pumped Nd:YVO4 microchip laser",

abstract = "Extremely high sensitivity of a diode-pumped microchip Nd:YVO4 laser to external light injection is demonstrated in optical detection of Doppler shift from a moving object. Intensity modulation induced by reflected scattered light from a rotating object at the Doppler-shift frequency is measured for a 1-mm-long diode-pumped Nd:YVO4 laser. When adjusting the diode pump power so that the relaxation oscillation frequency is resonant to the Doppler-shift frequency, the minimum detectable intensity of scattered light injected back into the microchip laser can be <-170 dB weaker than the intracavity laser intensity.",

author = "S. Okamoto and H. Takeda and F. Kannari",

year = "1995",

doi = "10.1063/1.1145539",

language = "English",

volume = "66",

pages = "3116--3120",

journal = "Review of Scientific Instruments",

issn = "0034-6748",

publisher = "American Institute of Physics Publising LLC",

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T1 - Ultrahighly sensitive laser-Doppler velocity meter with a diode-pumped Nd:YVO4 microchip laser

AU - Okamoto, S.

AU - Takeda, H.

AU - Kannari, F.

PY - 1995

Y1 - 1995

N2 - Extremely high sensitivity of a diode-pumped microchip Nd:YVO4 laser to external light injection is demonstrated in optical detection of Doppler shift from a moving object. Intensity modulation induced by reflected scattered light from a rotating object at the Doppler-shift frequency is measured for a 1-mm-long diode-pumped Nd:YVO4 laser. When adjusting the diode pump power so that the relaxation oscillation frequency is resonant to the Doppler-shift frequency, the minimum detectable intensity of scattered light injected back into the microchip laser can be <-170 dB weaker than the intracavity laser intensity.

AB - Extremely high sensitivity of a diode-pumped microchip Nd:YVO4 laser to external light injection is demonstrated in optical detection of Doppler shift from a moving object. Intensity modulation induced by reflected scattered light from a rotating object at the Doppler-shift frequency is measured for a 1-mm-long diode-pumped Nd:YVO4 laser. When adjusting the diode pump power so that the relaxation oscillation frequency is resonant to the Doppler-shift frequency, the minimum detectable intensity of scattered light injected back into the microchip laser can be <-170 dB weaker than the intracavity laser intensity.

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DO - 10.1063/1.1145539

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JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

IS - 5

ER -

Ultrahighly sensitive laser-Doppler velocity meter with a diode-pumped Nd:YVO₄ microchip laser

Abstract

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