Patent ID: 6163553
Filing Date: 2000-12-19
Classification: G02F,H01S

Abstract:
A laser for generating an optical comb, comprisingan active laser medium (3) enclosed in a resonator,means for coupling pump light from a pump source (1) into the active laser medium, thereby forming a laser having a wavelength-dependent gain profile (12),means (5, 10) for coupling out a resulting optical comb (8) having a plurality of spectral lines at respective wavelengths, andat least one optical filter (6) within the resonator for generating the optical comb,further comprisingat least one filter (7) in the resonator which introduces a wavelength-dependent loss (11) which is inverse to and compensating for the gain profile (12) of the active laser medium, resulting in a net (13) of said laser gain and said filter loss which is substantially constant across a .lambda. range including said plurality of spectral lines in said optical comb.