| 摘要 |
<p>A tunable laser (300) includes an acousto-optic tunable filter (100), a radio frequency signal source (8), a phase modulator (22), and a signal control processing circuit. The acousto-optic tunable filter (100) includes an acousto-optic crystal (12) and an acoustic transducer (10) welded at a selected surface of the crystal (12) for generating sound wave.</p> |
