| 摘要 |
<p>Thermo-optic apparatuses and techniques that may be used in external cavity lasers are provided. A wevelength selection device may be placed in the external cavity and may include a thermally responsive substrate and tunable optical elements extending therefrom. Heating and heat monitoring actuators may be formed in the substrate itself, with the tunable optical elements being mechanically positioned in the recesses of the substrate for thermo-optic tuning. In some examplese, a seperate optical pate length adjustment element is also placeed in there thermally responsive substrate, or elsewhere, for separate frequency tuning. This adjustment element may be part of a control that is detangled from the normal servo controls used in laser tuning.</p> |
