TY - JOUR
T1 - Fourier-transform external cavity lasers
AU - Breede, M.
AU - Hoffmann, S.
AU - Zimmermann, J.
AU - Struckmeier, J.
AU - Hofmann, M.
AU - Kleine-Ostmann, T.
AU - Knobloch, P.
AU - Koch, M.
AU - Meyn, J. P.
AU - Matus, M.
AU - Koch, S. W.
AU - Moloney, J. V.
N1 - Funding Information:
We thank W.W. Rühle, R. Caspary, and U. Unrau for stimulating discussions. The antireflection coatings were produced by Sacher Lasertechnik. The LT-GaAs photomixers were fabricated by K. Pierz and G. Hein. Parts of this research were supported by the German Minister for Education and Research, by the Deutsche Forschungsgemeinschaft within a graduate course program, and by the US Air Force Office of Scientific Research under contract numbers AFOSR-F49620-97-1-0002 and AFOSR-F49620-98-1-0227. R. Rink, M. Born, H. Fries and their workshop teams provided excellent technical help. S.W. Koch acknowledges support by the Max-Planck Programm of the Humboldt and Max Planck Societies.
PY - 2002/6/15
Y1 - 2002/6/15
N2 - We explore the potential of a new laser resonator design that uses an intracavity Fourier transformation and allows for multi-color operation, gain extension and intracavity second harmonic generation (SHG). First, purely electronically controlled wavelength tuning is demonstrated using liquid crystal displays (LCDs) and digital mirror devices. Moreover, the new design can be applied to different lasers as shown on the examples of a laser diode and a Thulium-doped fiber laser in the mid-infrared. Furthermore, we demonstrate the simultaneous control of multiple gain media within one single external cavity. In addition, tunable emission in the 490 nm range is obtained using intracavity SHG with one single control parameter. Finally, we unambiguously prove simultaneous multi-wavelength operation with variable wavelength spacings and apply it to the generation of THz difference frequencies.
AB - We explore the potential of a new laser resonator design that uses an intracavity Fourier transformation and allows for multi-color operation, gain extension and intracavity second harmonic generation (SHG). First, purely electronically controlled wavelength tuning is demonstrated using liquid crystal displays (LCDs) and digital mirror devices. Moreover, the new design can be applied to different lasers as shown on the examples of a laser diode and a Thulium-doped fiber laser in the mid-infrared. Furthermore, we demonstrate the simultaneous control of multiple gain media within one single external cavity. In addition, tunable emission in the 490 nm range is obtained using intracavity SHG with one single control parameter. Finally, we unambiguously prove simultaneous multi-wavelength operation with variable wavelength spacings and apply it to the generation of THz difference frequencies.
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U2 - 10.1016/S0030-4018(02)01451-7
DO - 10.1016/S0030-4018(02)01451-7
M3 - Article
AN - SCOPUS:0037097381
SN - 0030-4018
VL - 207
SP - 261
EP - 271
JO - Optics Communications
JF - Optics Communications
IS - 1-6
ER -