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Volume 14, Issue 10
Displaying 1-9 of 9 articles from this issue
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Yoshihiro HAMAKAWA1986 Volume 14 Issue 10 Pages 854-856
Published: October 28, 1986
Released on J-STAGE: February 26, 2010
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Yoshiki ICHIOKA1986 Volume 14 Issue 10 Pages 857-869
Published: October 28, 1986
Released on J-STAGE: February 26, 2010
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Kunio YOSHIDA1986 Volume 14 Issue 10 Pages 870-879
Published: October 28, 1986
Released on J-STAGE: February 26, 2010
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Kaoru SUZUKI, Tetsuya TANIYAMA, Takaya MASUTANI1986 Volume 14 Issue 10 Pages 880-888
Published: October 28, 1986
Released on J-STAGE: February 26, 2010
JOURNAL FREE ACCESSSmall lenses were processed in glass plates by the irradiation of carbon-dioxide (CO2) laser. The localized refractive-index change of glass small lenses were produced by the optical damage within the glass plate. The following results of this research were obtained. 1) At the laser processing, glass plate is preparatively heated to increase over the 300°C for preventing mechanical breakdown. 2) The ellipse form lenses are processed by irradiating the circular-form CO2laser beam. 3) The maximum refractive-index difference of this lenses are 0.0005-0.005, the focal length are 70-1 cm, the lens radius are 0.3-0.9mm and the residual stress are 1-18 kg/mm2. Those values are obtained by adjusting the shot number, the energy of CO2 laser and the temperature of glass plate.View full abstractDownload PDF (1493K) -
Kazuhiro WATANABE, Shigeru KASHIWABARA, Ryozo FUJIMOTO1986 Volume 14 Issue 10 Pages 889-896
Published: October 28, 1986
Released on J-STAGE: February 26, 2010
JOURNAL FREE ACCESSAnalysis of small-signal gain and laser output power of chemically pumped atomic iodine lasers obtained by using a simulation model which explains experimental results reasonably are presented for various gas pressure and composition of the lasing gas in the active region. Furthermore, laser intensities of two different dissociation models and gas temperature rise in the case of excess iodine injection are discussed quantitatively.View full abstractDownload PDF (755K) -
Shinichiro AOSHIMA, Yutaka TSUCHIYA1986 Volume 14 Issue 10 Pages 897-907
Published: October 28, 1986
Released on J-STAGE: February 26, 2010
JOURNAL FREE ACCESSOptical pulse feedback for a CPM ring dye laser has been proposed a one of the simplest methods to improve characteristics, such as the pulse-width, peak-power and stability of laser oscillation. Adopting this method to a CPM ring dye laser generating 6-beams, optical pulses of 89-fs in duration have been shortened to be 79-fs pulses with increase of 35 To in peak-power and improved oscillation-stability.View full abstractDownload PDF (1036K) -
Yoshiki KAWAOKA, Toshihiko OZAWA, Shozo ISHII1986 Volume 14 Issue 10 Pages 908-916
Published: October 28, 1986
Released on J-STAGE: February 26, 2010
JOURNAL FREE ACCESSWe proposed and tested a nitrogen laser pumped by an excitation circuit which were pulse-charged through a step-up transformer. The laser gas works as a closing switch element. Since the primary circuit branch is operated in low voltage, solid state switch devices instead of high voltage gap switches are applicable. The nitrogen laser of 30 cm tube length had the peak output power when the gas pressure was 70 Torr. A uniform discharge across the aluminum electrodes was established by using an auxiliary discharge preionization. In order to obtain the output characteristics under various conditions, a set of the circuit, equations and the rate equations based on the saturation approximation was solved numerically by the Runge-Kutta method. The computed results agreed well with the experimental results.View full abstractDownload PDF (822K) -
Akira FUKE, Katsuhiko MASUDA, Yasuhiro TOKITA1986 Volume 14 Issue 10 Pages 917-922
Published: October 28, 1986
Released on J-STAGE: February 26, 2010
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Takatomo SASAKI1986 Volume 14 Issue 10 Pages 923-930
Published: October 28, 1986
Released on J-STAGE: February 26, 2010
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