Patent ID: 6278721
Filing Date: 2001-08-21
Classification: H01S

Abstract:
A method for minimizing the locking range variability of a laser module housing a laser, and a fiber which receives light egressing from the laser, said laser module being designed to have a desired locking range with a fiber grating having a nominal peak reflectivity R.sub.p1 and a nominal coupling efficiency C.sub.1 between said laser and fiber, with the effective reflectivity R.sub.eff of said fiber and grating combination given by C.sub.1.sup.2 R.sub.p1, said method comprising the steps of:measuring the coupling efficiency C.sub.2 between the laser and fiber; andattaching to said fiber a fiber grating having a peak reflectivity R.sub.p2 so as to maintain the effective reflectivity R.sub.eff substantially constant with the variation in the measured coupling efficiency C.sub.2 from the nominal coupling efficiency C.sub.1.