Wavelength-tunable laser device

Abstract

Abstract PURPOSE:To obtain a device which is small in fluctuation and rapid in shift of wavelength, and efficient and moreover surely protected against damage of crystal by a method wherein a light parametric oscillator varies oscillating light in wavelength by changing incident angle of excited light incident on niobic acid kalium crystal and a secondary harmonic generator are provided. CONSTITUTION:A niobic acid kalium crystal 16 is provided between an incident mirror 14 and a projecting mirror 15, a light parametric oscillator 10 in wavelength outputted through the intermediary of a projecting mirror 15 by changing incident angle of excited light incident on a niobic acid kalium crystal 16 through the intermediary of the incident mirror 14 and a secondary harmonic generator 11 which outputs secondary harmonic of incident light, which is the oscillating light 20 outputted from the said parametric oscillator 10, as projecting light 25 by controlling incident angle of the said light incident on a niobic acid kalium crystal 23 are provided. The said light parametric oscillator 10 and the said secondary harmonic generator 11 are, for example, rendered to control incident angle of the excited light 12 or the oscillating light 20 incident on the crystals 16 or 23 by rotating the crystals 16 or 23 respectively.

Inventors

• 👤 Hideo Suzuki
• 👤 英夫 鈴木
• 👤 Yasutsugu Osumi
• 👤 大隅　安次
• 👤 Nobuhiro Morita
• 👤 森田　伸廣
• 👤 Osamu Matsumoto
• 👤 修 松本
• 👤 Yuji Kobayashi
• 👤 祐二 小林
• 👤 Yasushi Obayashi
• 👤 寧 大林

Bibliographic Details