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25 February 2016 Hybrid polymer/InP dual DBR laser for 1.5 μm continuous-wave terahertz systems
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A hybrid polymer/InP dual DBR laser at 1.5μm is presented as an optical source for heterodyne generation and detection of cw-THz signals. The device consists of an active InP chip as an active gain element, end-fire coupled to a polymer chip with thermo-optically tunable phase shifters and Bragg gratings. Mode-hop-free tuning of 1.1 THz has been achieved on the single DBR lasers. The usability of such sources for heterodyne cw-THz generation has been demonstrated in a coherent cw-THz setup. Scans in the THz range show a resolution of the H2O absorption lines comparable to the results achievable with commercially-available external-cavity diode lasers.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
D. de Felipe, M. Happach, S. Nellen, W. Brinker, M. Kleinert, C. Zawadzki, M. Möhrle, N. Keil, T. Göbel, K. Petermann, and M. Schell "Hybrid polymer/InP dual DBR laser for 1.5 μm continuous-wave terahertz systems", Proc. SPIE 9747, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications IX, 974719 (25 February 2016);

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