Continuous laser Velocity®

fiberUVtunable

The Velocity® is our premier tunable diode laser system offering both wide and fine wavelength scanning. The laser cavity housing is shock proof, thermally insulated with active temperature control, and incorporates our unique magnetic damping technology to provide higher power, stability, and narrow linewidths. True mode-hop-free wide tuning Exceptional stability with shock-proof and thermally insulated housing and magnetic damping technology Fiber coupled option with robust permanent fiber coupling Easy-to-use wavelength control Applications Quantum Physics Micro-cavity resonators Quantum dots Spectroscopy Features Linewidth: Heterodyne Beat Note Method Historically, linewidth is measured over an integration time of 50 msec or longer with the heterodyne beat note method utilizing two independent similar ECDLs. This method is less dependent on the measurement setup and provides a true snap shot of spectral broadening. Linewidth: Delayed Self-beat Note Method The delayed self-beat note method is another linewidth measurement technique. While this technique filters out spectral broadening, it provides an instantaneous snapshot of the Lorentzian spectrum. The New Focus Velocity laser measures 2.5 kHz over a delayed 4.6 µs measurement.