Authors:
Hristo Kisov
;
Margarita Deneva
;
Elena Stoykova
and
Marin Nenchev
Affiliation:
Technical University of Sofia, Bulgaria
Keyword(s):
Interference wedged structures, WDM-system, multi-wavelength lasers, optical transistor, laser with fixed wavelength at atomic absorption line, injection-locking linear laser amplifier.
Abstract:
The goal of the report is to present the development – principles, theories and computer simulations, experiments and practical realizations, of original and competitive methods, elements and devices for
quantum electronics, optical communications, metrology, remote sensing and sciences: multi-channel WDM system with independent tuning of each input/output, multi-wavelength laser with independent
control of each wavelength, lasers with emission, spectrally fixed at reference atomic absorption line, injection-locking laser system for high (~106-108) and linear amplification of low-power (~ μW, nW)
modulated laser light, optical analogue of the transistor action – optical transistor, system for remote (up to kilometres) measurement of small (mm) translational elongation – shrinking of objects, new solution of
tunable sub-nanosecond lasers and lasers with rectangular nanosecond (~1 ns) pulse emission, including controlled duration and tunable wavelength. The basic element of the devices
developed is stable and
compact interference wedged structures in new composite solution with very narrow transmission (≤ 0.01 nm) in relatively large spectral range (≥1 nm). The laser active media used are solid-state, semiconductor and dye.
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