نتایج جستجو برای: quantum cascade lasers
تعداد نتایج: 357688 فیلتر نتایج به سال:
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We have measured the spectral linewidths of three continuous-wave quantum cascade lasers operating at terahertz frequencies by heterodyning the free-running quantum cascade laser with two far-infrared gas lasers. Beat notes are detected with a GaAs diode mixer and a microwave spectrum analyzer, permitting very precise frequency measurements and giving instantaneous linewidths of less than -30 k...
Related Articles Single-mode quantum cascade lasers employing asymmetric Mach-Zehnder interferometer type cavities Appl. Phys. Lett. 101, 161115 (2012) Bistability patterns and nonlinear switching with very high contrast ratio in a 1550nm quantum dash semiconductor laser Appl. Phys. Lett. 101, 161117 (2012) Relative intensity noise of a quantum well transistor laser Appl. Phys. Lett. 101, 15111...
Continuous wave operation of quantum cascade lasers is reported up to a temperature of 312 kelvin. The devices were fabricated as buried heterostructure lasers with high-reflection coatings on both laser facets, resulting in continuous wave operation with optical output power ranging from 17 milliwatts at 292 kelvin to 3 milliwatts at 312 kelvin, at an emission wavelength of 9.1 micrometers. Th...
Related Articles Single-mode quantum cascade lasers employing asymmetric Mach-Zehnder interferometer type cavities Appl. Phys. Lett. 101, 161115 (2012) Bistability patterns and nonlinear switching with very high contrast ratio in a 1550nm quantum dash semiconductor laser Appl. Phys. Lett. 101, 161117 (2012) Relative intensity noise of a quantum well transistor laser Appl. Phys. Lett. 101, 15111...
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