An EMQ-Switched CO2 Laser as a Pump Source for a Far-Infrared Laser with a High Peak Power and a High Repetition Rate

Jongsuck Bae; Tatuo Nozokido; Hirokazu Shirai; Kazuyuki Furuya; Takashi Nishida; Koji Mizuno

doi:10.1109/3.29299

An EMQ-Switched CO₂ Laser as a Pump Source for a Far-Infrared Laser with a High Peak Power and a High Repetition Rate

Jongsuck Bae, Tatuo Nozokido, Hirokazu Shirai, Kazuyuki Furuya, Takashi Nishida, Koji Mizuno

Electric and Electronic Engineering

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

11 Scopus citations

Abstract

An EMQ-switched CO2 laser which is Q-switched by a mechanical beam chopper in combination with a pulsed discharge current has been developed for pumping far-infrared lasers. This CO2 laser produces a very stable output with a peak power greater than 1 kW at a repetition rate of 1000 pps for all transitions in the P and R branches of the CO2 spectrum. Using it as a pump source for a CH3F laser, we have obtained 496 μm radiation in 6.5 W peak, 100 ns pulses at 500 pps in the lowest loss EH11 mode.

Original language	English
Pages (from-to)	1591-1594
Number of pages	4
Journal	IEEE Journal of Quantum Electronics
Volume	25
Issue number	7
DOIs	https://doi.org/10.1109/3.29299
State	Published - 1989/07

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1109/3.29299

Cite this

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title = "An EMQ-Switched CO2 Laser as a Pump Source for a Far-Infrared Laser with a High Peak Power and a High Repetition Rate",

abstract = "An EMQ-switched CO2 laser which is Q-switched by a mechanical beam chopper in combination with a pulsed discharge current has been developed for pumping far-infrared lasers. This CO2 laser produces a very stable output with a peak power greater than 1 kW at a repetition rate of 1000 pps for all transitions in the P and R branches of the CO2 spectrum. Using it as a pump source for a CH3F laser, we have obtained 496 μm radiation in 6.5 W peak, 100 ns pulses at 500 pps in the lowest loss EH11 mode.",

author = "Jongsuck Bae and Tatuo Nozokido and Hirokazu Shirai and Kazuyuki Furuya and Takashi Nishida and Koji Mizuno",

note = "Funding Information: Manuscript received September 8, 1988. This work was supported in part by a Grdnt-in-Aid for Scientific Research from the Ministry of Education, Science, and Culture, and also by Saito Hoonkai (Sendai). The authors are with the Research Institute of Electrical Communication Tohuku University. Sendai 980. Japan. IEEE Log Number 8927985.",

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AU - Shirai, Hirokazu

AU - Furuya, Kazuyuki

AU - Nishida, Takashi

AU - Mizuno, Koji

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N2 - An EMQ-switched CO2 laser which is Q-switched by a mechanical beam chopper in combination with a pulsed discharge current has been developed for pumping far-infrared lasers. This CO2 laser produces a very stable output with a peak power greater than 1 kW at a repetition rate of 1000 pps for all transitions in the P and R branches of the CO2 spectrum. Using it as a pump source for a CH3F laser, we have obtained 496 μm radiation in 6.5 W peak, 100 ns pulses at 500 pps in the lowest loss EH11 mode.

AB - An EMQ-switched CO2 laser which is Q-switched by a mechanical beam chopper in combination with a pulsed discharge current has been developed for pumping far-infrared lasers. This CO2 laser produces a very stable output with a peak power greater than 1 kW at a repetition rate of 1000 pps for all transitions in the P and R branches of the CO2 spectrum. Using it as a pump source for a CH3F laser, we have obtained 496 μm radiation in 6.5 W peak, 100 ns pulses at 500 pps in the lowest loss EH11 mode.

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