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Diode oscillations

To synchronize the fluorescence to the continuous sinusoidal deflection voltage of the streak camera, 10% of the visible output from the dye laser was directed onto a pin photodiode which was used to trigger a tunnel diode oscillator. The output of this oscillator was then frequency... [Pg.34]

Landauer studied the behavior of a bistable system consisting of a tunnel diode and focused his attention on the activation jump between the two states resulting from thermal fluctuations. Later, Matsuno ° analyzed the power spectrum of the noise affecting the electric conductivity of a Gunn diode. Diode oscillations were proven to be accompanied by modulation of both amplitude and frequency. The noise spectrum was shown to exhibit typical 1// characteristics, and fluctuations were found to appear in the region close to the critical threshold with an increasing relaxation time as the threshold was approached. This behavior is largely reminiscent of that ex-... [Pg.450]

Scharfetter, D.L. and Gummel, H.K. (1969) Large-Scale Analysis of a Silicon Read Diode Oscillator. IEEE Trans. Electron Devices, ED-16, 64-77. [Pg.327]

At frequencies up to -150-200 GHz, solid-state sources such as YIG-tuned oscillators or Guim diode oscillators are now available with power outputs of up to 100 mW. The harmonic generation of such millimetre-wave sources is relatively efficient for doubling and tripling (>10-15%), but for higher harmonics the power drops rapidly ( (1 THz)< 0.1-10 pW). Nevertheless, harmonic generation was used as early as the 1950s to record the submillimetre wave spectra of stable molecules [33]- Harmonics from optimized solid-state millimetre-wave sources are now used to drive astronomical heterodyne receivers up to 900-1100 GHz... [Pg.1246]

CW microwaves at 9.35 GHz are generated by a cavity-stabilized Gunn diode oscillator with an output power of 20 mW. The microwaves are then chopped at a frequency 20 Hz < < 10 kHz by a p-i-n switch... [Pg.322]

Signal Analysis of a Silicon Read Diode Oscillator. [Pg.292]

Scharfetter DL, Gummel HK (1969) Large-signal analysis of a silicon read diode oscillator. IEEE Trans Electron Dev ED-16 64-77... [Pg.366]

Inductance Thermometers. Inductance thermometers make use of the temperature depedence of the magnetic properties of core materials. When an inductor is incorporated into a tunnel diode oscillator circuit, the temperature dependence of the core is reflected in the oscillator frequency. Inductors with cores of specially treated alloys can be used in the temperature range 4-300 K with a resolution of better than 10 mK. Standard broadcasting techniques can be used to transmit the frequency over long distances. [Pg.543]

Microwave Klystron backward wave oscillator Mica None Crystal diode... [Pg.60]

Millimetre wave Klyston (frequency multiplied) backward wave oscillator Mica polymer None Crystal diode Golay cell thermocouple bolometer pyroelectric... [Pg.60]

For the visible and near-ultraviolet portions of the spectmm, tunable dye lasers have commonly been used as the light source, although they are being replaced in many appHcation by tunable soHd-state lasers, eg, titanium-doped sapphire. Optical parametric oscillators are also developing as useful spectroscopic sources. In the infrared, tunable laser semiconductor diodes have been employed. The tunable diode lasers which contain lead salts have been employed for remote monitoring of poUutant species. Needs for infrared spectroscopy provide an impetus for continued development of tunable infrared lasers (see Infrared technology and RAMAN spectroscopy). [Pg.17]

Figure 6.7. Temperature dependence of a hypothetical laser diode. Several modes are shown oscillating within the 2-nm bandwidth envelope of this laser the mode spacing and position change somewhat with temperature as well. Note that some longer-wave-length lasers exhibit significant increases in the bandwidth with temperature. Figure 6.7. Temperature dependence of a hypothetical laser diode. Several modes are shown oscillating within the 2-nm bandwidth envelope of this laser the mode spacing and position change somewhat with temperature as well. Note that some longer-wave-length lasers exhibit significant increases in the bandwidth with temperature.
The bombing test is use to check the tightness of components which are already hermetically sealed and which exhibit a gas-filled, internal cavity. The components to be examined (e.g. transistors, 1C housings, dry-reed relays, reed contact sw/itches, quartz oscillators, laser diodes and the like) are placed in a pressure vessel which is filled with helium. Operating with the test gas at relatively high pressure (5 to 10 bar) and leaving the system standing over several hours the test gas (helium) will collect inside the... [Pg.123]

Major, A., Cisek, R., and Barzda, V. 2006. Femtosecond Yb KGd(W04)(2) laser oscillator pumped by a high power fiber-coupled diode laser module. Opt. Exp. 14 12163-68. [Pg.100]

See other pages where Diode oscillations is mentioned: [Pg.8]    [Pg.44]    [Pg.8]    [Pg.44]    [Pg.1253]    [Pg.1574]    [Pg.1584]    [Pg.1586]    [Pg.1971]    [Pg.363]    [Pg.370]    [Pg.314]    [Pg.316]    [Pg.133]    [Pg.231]    [Pg.232]    [Pg.379]    [Pg.133]    [Pg.101]    [Pg.220]    [Pg.8]    [Pg.470]    [Pg.276]    [Pg.429]    [Pg.255]    [Pg.48]    [Pg.474]    [Pg.74]    [Pg.721]    [Pg.803]    [Pg.370]    [Pg.118]    [Pg.23]    [Pg.403]    [Pg.68]    [Pg.129]    [Pg.144]   
See also in sourсe #XX -- [ Pg.450 ]



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