Patent ID: 9705276
Date: 2017-07-11
CPC Classifications: H01S

Claim:
1. A laser apparatus operable to generate giant chirp pulses having a center frequency, comprising optical fiber based components arranged to form a cavity, the components comprising: a first gain medium, an optical isolator, a length of single mode fiber, a passive mode locking device, an output coupler, and an optical filter, wherein the optical filter is configured between an output of the passive mode locking device used by the cavity and an input of the first gain medium, wherein the mode locking device is a nonlinear amplified loop mirror including: an optical coupler configured to provide an input and an output, and a second gain medium with a pump source operable to provide energy to a propagating pulse, wherein the optical coupler has a 55/45 ratio, and wherein the optical fiber components are polarization maintaining components.