METHOD AND APPARATUS FOR TUNING A LASER

摘要

The present invention provides a tunable laser (200) with a compact form factor and precise tuning to any selected center wavelength of a selected wavelength grid (140). A novel tuning technique is disclosed which includes tuning the laser (200) to selected passbands (162-170), as well as tuning the optical path length of the laser (200) utilizing a variety of tuning elements and a feedback circuit working together.