1 Teraherts Technologies and Biophotonics, Department of Photonics Engineering, Technical University of Denmark2 Department of Photonics Engineering, Technical University of Denmark3 Diode Lasers and LED Systems, Department of Photonics Engineering, Technical University of Denmark4 Optical Sensor Technology, Department of Photonics Engineering, Technical University of Denmark5 Risø National Laboratory for Sustainable Energy, Technical University of Denmark6 unknown7 Copenhagen Center for Health Technology, Center, Technical University of Denmark
We present a novel frequency-swept light source working at 1060nm that utilizes a tapered amplifier as gain medium. These devices feature significantly higher saturation power than conventional semiconductor optical amplifiers and can thus improve the limited output power of swept sources in this wavelength range. We demonstrate that a tapered amplifier can be integrated into a fiber-based swept source and allows for high-speed FDML operation. The developed light source operates at a sweep rate of 116kHz with an effective average output power in excess of 30mW. With a total sweep range of 70 nm an axial resolution of 15 μm in air (~11μm in tissue) for OCT applications can be achieved.
Proceedings of Spie, the International Society for Optical Engineering, 2010, Vol 7715
Main Research Area:
Biophotonics : Photonic Solutions for Better Health Care II, 2010