| 摘要 |
<p>A resonant laser cavity (3) is defined in an optical material (2). Light of a first wavelength (14) induces a refractive index change in optical material (2), which influences light of a second wavelength (11) transmitted through the laser cavity (3). The refractive index change may be clamped at a predetermined value if light of the first wavelength (14) causes lasing of the cavity (3). The clamped refractive index change may be utilised for optical switching and wavelength conversion via cross-phase modulation. A suitable optical material is an optical fibre (2) with a 0.2 % wt. Ytterbium doped core (3).</p> |
