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Irimajiri Y, Kumagai M, Morohashi I, Kawakami A, Nagano S, Sekine N, et al. Phase-locking of a THz-QCL using a Low Noise HEB mixer, and a Frequency-comb as a Reference. In: 39th Int. Conf. IRMMW-THz.; 2014. p. 1–2.
Abstract: We have developed a phase-locking system of a 3.1THz QCL (Quantum Cascade Laser) using a low noise hot electron bolometer mixer (HEBM) and a THz reference. The THz reference was generated by photomixing two optical modes of a frequency comb. The THz-QCL and HEBM devices are fabricated in our laboratory. A line width of the phase-locked QCL of narrower than 1Hz was achieved.
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