The quantum-dimension laser diode represents the nanostructural ultra-wideband
mesa-strip injection semiconductor laser diode with the following high output
indices:
• emission power 10–30 mW,
• modulation bandwidth due to utilization of photon technologies is 10–40 GHz,
and
• the slope of the optical power transformation for pumping DC is 1 mW/10 mA.
QWLD is the nanostructural element since semiconductor material layers are
formed in its active part, which have the de Broglie wave sizes of about 1–10 nm.
From the point of view of modern oscillation theory, formation of such layers
(or quantum zones) allows creation of original self-oscillating systems and resonators for electrons being the active particles in QWLD. In such oscillating systems,
Fig. 2.1 (a) The OEO functional diagram with various modulated light sources: OEO with QWLD
with direct modulation and OEO with QWLD with the external electro-optical modulator; (b) OEO
oscillations spectra at optical and RF outputs, (c) the approximate view of the RF oscillation
spectrum, which are generated by OEO with QWLD in the steady-state of single-frequency
generation on 8.2-GHz frequency (observation time is 1 ms) (Hereinafter, in structural figures,
thick lines in figures show the optical flows, while the thin lines show RF flows)
18
2 Nanostructural Optoelectronic Oscillators with the Fiber-Optical Delay Line
mesa-strip injection semiconductor laser diode with the following high output
indices:
• emission power 10–30 mW,
• modulation bandwidth due to utilization of photon technologies is 10–40 GHz,
and
• the slope of the optical power transformation for pumping DC is 1 mW/10 mA.
QWLD is the nanostructural element since semiconductor material layers are
formed in its active part, which have the de Broglie wave sizes of about 1–10 nm.
From the point of view of modern oscillation theory, formation of such layers
(or quantum zones) allows creation of original self-oscillating systems and resonators for electrons being the active particles in QWLD. In such oscillating systems,
Fig. 2.1 (a) The OEO functional diagram with various modulated light sources: OEO with QWLD
with direct modulation and OEO with QWLD with the external electro-optical modulator; (b) OEO
oscillations spectra at optical and RF outputs, (c) the approximate view of the RF oscillation
spectrum, which are generated by OEO with QWLD in the steady-state of single-frequency
generation on 8.2-GHz frequency (observation time is 1 ms) (Hereinafter, in structural figures,
thick lines in figures show the optical flows, while the thin lines show RF flows)
18
2 Nanostructural Optoelectronic Oscillators with the Fiber-Optical Delay Line