Helical fiber amplifier
| Patent Number: | 6496301 |
| Issued: | 12/17/2002 |
| Official Filing: | View the Complete Patent |
| Abstract: | A multi-mode gain fiber is provided which affords substantial improvements in the maximum pulse energy, peak power handling capabilities, average output power, and/or pumping efficiency of fiber amplifier and laser sources while maintaining good beam quality (comparable to that of a conventional single-mode fiber source). These benefits are realized by coiling the multimode gain fiber to induce significant bend loss for all but the lowest-order mode(s). |
| Filed: | 3/10/2000 |
| Application Number: | 9/523,215 |
| Government Interests: | STATEMENT OF GOVERNMENT INTEREST This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |