| Title: |
Radiation tolerant frequency comb fiber laser for space applications |
| Authors: |
Lezius, Matthias; Penka, Daniela; Melin, Gilles; Robin, Thierry; Cadier, Benoit; Kuhnhenn, Jochen; Weinand, Udo; Holzwarth, Ronald |
| Publication Year: |
2023 |
| Collection: |
Publikationsdatenbank der Fraunhofer-Gesellschaft |
| Subject Terms: |
frequency comb; radiation hard; erbium doped fiber laser |
| Description: |
A radiation tolerant Erbium fiber based optical frequency comb has been developed and environmentally tested. The system remained operable after an accumulated dose of 1 kGy. The underlying femtosecond fiber oscillator and Erbium fiber amplifiers have been manufactured from speciality doped fibers. The fiber optic system has been assembled and packaged using low outgassing components in a flight representative package before it was irradiated under active operation in two stages a 500 kGy. The accelerated ageing with dose rates of 10 mGy/s in water was tested using the calibrated Cobalt 60 source of the ESA-ESTEC facilities. The comb laser remained fully functional while the oscillator lost up to 30% of output power after the full exposure to the accumulated dose of 1 kGy. The fiber amplifiers lost 5-7% of output power. |
| Document Type: |
conference object |
| File Description: |
application/pdf |
| Language: |
English |
| Relation: |
International Conference on Space Optics 2022; #PLACEHOLDER_PARENT_METADATA_VALUE#; International Conference on Space Optics, ICSO 2022; https://publica.fraunhofer.de/handle/publica/466139 |
| DOI: |
10.1117/12.2689947 |
| DOI: |
10.24406/publica-2954 |
| Availability: |
https://publica.fraunhofer.de/handle/publica/466139; https://doi.org/10.1117/12.2689947; https://doi.org/10.24406/publica-2954 |
| Rights: |
CC BY 4.0 |
| Accession Number: |
edsbas.435394E |
| Database: |
BASE |