| 摘要 |
PURPOSE:To enable transmission without requiring any additional optical system for the optical fiber by an arrangement wherein the optical fiber is made to also act as a resonator mirror and integrated with the optical guide path. CONSTITUTION:The electrodes 31, 32 oppositely attached on the outer surface of a thin tube 30 are connected to a RF power supply 33. In one end of the thin tube 30 a highly reflective mirror 36 is airtightly inserted orthogonally with the axis of an optical guide path 35. In the other end, an optical fiber 37, the core diameter of which is substantially same as the diameter of the reflecting surface of the highly reflective mirror 36, is inserted so that the whole surface of the core blocks up the optical guide path 35, maintaining the optical guide path 35 and the outside air in airtightness. The core end opposite to the highly reflective mirror 36 has been applied with a coating treatment so as to have a predetermined reflectance for also acting as the output mirror. In this arrangement, an optical resonator is constructed with the highly reflective mirror 36 and the end face of the optical fiber 37, and the reflected light 40 is transmitted using the optical guide path 35 as a wave guiding path. Therefore, an optical system for incidence becomes unnecessary. |
