| 摘要 |
A fiber Cerenkov-type optical wavelength converter module includes an optical wavelength converter device comprising an optical fiber including a cladding having a first refractive index and a core of a nonlinear optical material disposed in the cladding, said core having a second refractive index higher than the first refractive index, whereby the optical fiber converts the wavelength of a fundamental wave introduced into the core and radiates a wavelength-converted wave into the cladding. A laser beam is emitted from a semiconductor laser and applied as the fundamental wave to the optical wavelength converter device. The temperature of the optical wavelength converter device, or the temperatures of the optical wavelength converter device and the semiconductor laser, are regulated such that the tolerances specified for the length of the optical fiber, the diameter of the core, and other dimensions can be increased. Therefore, the optical wavelength converter device and the optical wavelength converter module can be fabricated with greater ease.
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