Fig. 3.10 The principle of the direct modulation (DM) of laser emission in the laser with the
traveling-wave resonator (for instance, fiber optical laser) (a) and in the laser in the resonator with
the standing wave (b). The experimental watt–ampere characteristic of QWLD at modulation of the
harmonic signal (c). The optical spectrum of the laser without modulation, the wavelength at signalfrequency single-mode emission mode is 1.3 μm, the power is 1 mW (d)
3.2 Methods of Modulation and Heterodyning of Laser Emissions at DM and MZ. . .
95
traveling-wave resonator (for instance, fiber optical laser) (a) and in the laser in the resonator with
the standing wave (b). The experimental watt–ampere characteristic of QWLD at modulation of the
harmonic signal (c). The optical spectrum of the laser without modulation, the wavelength at signalfrequency single-mode emission mode is 1.3 μm, the power is 1 mW (d)
3.2 Methods of Modulation and Heterodyning of Laser Emissions at DM and MZ. . .
95