Developing compact multiphoton systems using femtosecond fiber lasers.
- Author(s): Tang, Shuo
- Liu, Jian
- Krasieva, Tatiana B
- Chen, Zhongping
- Tromberg, Bruce J
- et al.
Published Web Locationhttps://doi.org/10.1117/1.3153842
We implement a fiber-delivered compact femtosecond fiber laser at 1,030-nm wavelength in multiphoton imaging. The laser pulse duration is 150 fs, the average power is 200 mW, and the repetition rate is 40 MHz. The laser measures 200 x 160 x 45 mm in size and its output is delivered through a photonic bandgap fiber. Intrinsic second-harmonic generation signal is excited from rat tail tendon and human skin samples. Two-photon excited fluorescence signal is obtained from human skin tissues stained with exogenous fluorophore. Our results show that femtosecond fiber lasers at 1030-nm wavelength have significant potential in developing compact, all-fiber-based, portable multiphoton systems and endoscopes.