Pioneer Electronic Corporation

Manabu Mochizuki

Yutaka Murakami

A laser-diode-pumped solid state laser comprises: a solid laser medium; a laser-diode capable of producing a laser beam for exciting the solid laser medium; a pair of mirrors which forms a resonator for resonating a light excited by the solid laser medium. An interval between the pair of mirrors is determined such that a gain width GW of the solid laser medium and a frequency interval FS (between every two resonator modes) satisfies an equation 0.1&lE;FS/GW<1.

Laser-diode-pumped solid state laser and an optical system using the same

An optical recording system has a gas laser having an optical resonator for emitting a laser beam, and an optical modulator for modulating the laser beam in accordance with a signal to be recorded. An optical system is provided for focusing the modulated laser beam on the recording medium so as to record the signal. The optical resonator has an etalon and a wavelength selecting prism for selecting a single wavelength so that the gas laser oscillates the laser beam in a single longitudinal mode.

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Yamanashi-ken, Japan

Manabu Mochizuki