Repetition Rate Tuning of an Ultrafast Ytterbium Doped Fiber Laser for Terahertz Time-Domain Spectroscopy

Keskin, Hakan
Altan, Hakan
Yavas, Seydi
İLDAY, Fatih Ömer
Yagci, M. Emre
Aydin, Ozan
Eken, Koray
Sahin, Behzat
Repetition rate tuning enables the fast acquisition of THz pulse profiles [1]. By using this method we demonstrate a compact and broadband terahertz time domain spectroscopy system (THz TDS) driven by ytterbium doped fiber laser source. The importance of this method is realized in that Yb: doped fiber lasers can be amplified to sub-millijoule pulse strengths more easily than other types of fiber lasers [2]. Hence, it has the potential to be used in excite-THz probe experiments. Furthermore, the repetition rate-tuning adds flexibility in the excite-probe techniques. These attributes as well as THz generation and detection are investigated with the laser that was developed.
38th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)


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Keskin, Hakan; Altan, Hakan; Berberoğlu, Halil Giray; Department of Physics (2013)
In this thesis, development of a Terahertz time domain spectrometer (THz-TDS) driven by an ultrafast Ytterbium (Yb) doped ber laser, whose repetition rate can be tuned, was investigated to show that it can be used in Optical Sampling by Cavity Tuning (OSCAT) technique which enables the fast acquisition of THz pulse pro les. Central wavelength of the Yb-doped laser developed for this study is 1031 nm. The output average power was measured to be 90 mW which corresponds to about two nanojoule per pulse at 51 ...
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Citation Formats
H. Keskin et al., “Repetition Rate Tuning of an Ultrafast Ytterbium Doped Fiber Laser for Terahertz Time-Domain Spectroscopy,” presented at the 38th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Mainz, Germany, 2013, Accessed: 00, 2020. [Online]. Available: