Our popular line of phase modulators are ideally suit-ed for applications in atomic physics (including atom- trapping and cooling experiments), laser-frequency stabilization (page 58), high-resolution spectroscopy, and laser-guide star systems for astronomy. We offer broadband modulators that can be used at a wide range of frequencies and resonant modulators thatoperate at a single frequency with much lower drive- voltage requirements. When used properly, the NewFocus electro-optic phase modulators can provide efficient phase modulation with extremely low unwanted amplitude modulation and insertion...