Laser Tuning Based on Wavelength-Dependent Resonant Losses

调谐激光器的波长是激光器的许多用途的基础。 光 这项研究活动将开发一种新的机制 用于电子调谐激光器。 目标是使 更快速可调谐的激光器，其是高效且可靠的。 调谐方法是通过抑制不需要的纵向 腔模式或等效的不想要的波长。 损失 该机制是基于激光腔的 我们希望抑制的基本横向模式和更高的- 3阶高损耗横模。 耦合是通过腔中的声光调制器实现的。 一个成功的第一阶段和第二阶段计划将产生可调 连续发射和脉冲激光器， 广泛的研究和测量应用。

Tuning the wavelength of lasers is basic to many uses of light. This research activity will develop a new mechanism for electronically tuning lasers. The objectives are to make more rapidly tunable lasers that are efficient and reliable. The tuning method is by suppressing unwanted longitudinal cavity modes, or equivalently unwanted wavelengths. The loss mechanism is based on a coupling between a laser cavity's fundamental transverse mode we wish to suppress and a higher- order higher-loss transverse mode of the same laser cavity. The coupling is by an acousto-optic modulator in the cavity. A successful Phase I and Phase II program will produce tunable continuously-emitting and pulsed lasers relevant to a wide range of research and measurement applications.