| 摘要 |
<p>According to a first aspect, the invention relates to a device (1) for generating a continuous wide-band frequency comb, including: an optical fiber loop (3); a continuous laser source (2) providing a laser line at a reference frequency, the laser source being coupled to the loop so that the laser line provided by the source passes several times through the loop (3); a phase modulator (5) provided in the optical fiber loop, said phase modulator being capable of generating side lines from an incident central line, a plurality of evenly spaced lines being then generated over a wide band due to the passages thereof in the phase modulator; characterized in that it further comprises frequency transposition means (7) arranged in the optical fiber loop (3), said frequency transposition means (7) being adapted for offsetting said plurality of lines generated on the loop upon each passage in the loop.</p> |
