DFC Wavelength Extensions
Wavelength conversion from 1560 nm to any desired wavelength between 420 and 2200 nm
- Modular extensions
- For use with DFC CORE +
- Independent remote control of different extensions
- Up to three extensions per DFC EXT
- Custom extensions and beat detection in DFC EXT housing
- replaceable pump modules for lowest downtime
- in-field upgrade of new wavelength extensions
Various extension modules are available that convert the offset-free fundamental output of the DFC CORE + from 1560 nm to any desired wavelength between 420 nm and 2200 nm. The wavelength conversion in these modules is achieved with the well-established technology of TOPTICA’s femtosecond fiber lasers. All extension modules use highly stable all-fiber amplification, nonlinear conversion and compression. The output power of all extension modules allows for phase-locking of cw lasers. Special wavelength extensions are available on request or included in TOPTICA's complete stabilized laser systems.
Specifications
| Extension | Center wavelength within | Emission bandwidth | Wavelength tuning range |
| DFC IR | 1560 nm | 80 to 100 nm (pulse duration < 100 fs on request) | - |
| DFC SCIR | 980 to 2200 nm | typical 150 to 300 nm | typical 300 nm |
| DFC SCNIR | 860 to 980 nm | typical 30 to 60 nm | typical 100 nm |
| DFC NIR | 780 nm | > 40 nm | - |
| DFC VIS-L | 640 to 840 nm | typical 1 to 8 nm | 60 to 80 nm*1 |
| DFC VIS-S | 420 to 640 nm | typical 0.3 to 3 nm | 80 to 100 nm*1,2 |
*1 service operation necessary for adjustment of design wavelength to new value within tunability range
*2 tunability below 450 nm is limited