Temat: optical gain - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Optical gain in one-dimensional photonic band gap structures with n-i-p-i crystal layers
Autorzy:: Nefedov, I.S.
Gusyatnikov, V.N.
Marciniak, M.
Kononenko, V.K.
Ushakov, D.V.
Powiązania:: https://bibliotekanauki.pl/articles/308163.pdf
Data publikacji:: 2002
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: photonic crystals
doping superlattice
optical gain
tunable source
Opis:: The gain enhancement in a layered periodic photonic band gap structure containing active medium based on GaAs n-i-p-i superlattices separated by A1GaAs layers is analyzed. The dependences of extinction coefficient and refractive index on excitation level and wavelength are presented. Transmission characteristics of a probe light versus excitation level are calculated. It is shown that the threshold of generation can be essentially reduced if the wavelength of probe light falls to the band gap edge.
Źródło:: Journal of Telecommunications and Information Technology; 2002, 1; 60-64
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Utilization of the SOA Deep Saturation and Power Averaging Effect to Counteract Intra-Channel Crosstalk in DWDM System
Autorzy:: Dyc, F. M.
Mazurek, P.
Turkiewicz, J. P.
Powiązania:: https://bibliotekanauki.pl/articles/308974.pdf
Data publikacji:: 2014
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: cross-gain modulation
Dense Wavelength Division Multiplexing
Semiconductor Optical Amplifier
Opis:: The Semiconductor Optical Amplifier (SOA) is a key component of cost-effective short/medium range transmission systems. However it can introduce signal distortions. In this paper the authors investigate the possibility to reduce the signal distortions in SOA operating with the multiple wavelength channels. Using numerical simulations the negative influence of the nonlinear effects, namely cross-gain modulation (XGM) and the patterning effect can be reduced in deep SOA saturation regime. The self-healing effect is pronounced for the 4 or more wavelength channels and the transmitted symbol length longer than double of the SOA recovery time.
Źródło:: Journal of Telecommunications and Information Technology; 2014, 2; 22-28
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Synthesis method for distributed amplifiers
Autorzy:: Zólomy, A.
Powiązania:: https://bibliotekanauki.pl/articles/309227.pdf
Data publikacji:: 2003
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: wzmacniacz
synchronizacja fazowa
distributed amplifier
gain-bandwidth products
phase synchronization
optical receivers
Opis:: New design method is presented for distributed amplifiers (DA). It is shown that by proper design of the applied transmission lines (TL) between the active devices the image impedance and the cut-off frequency (COF) of the input or output line of the DA can be independently tuned. As a consequence, the phase mismatch between the lines of the DA can be adjusted independently from the termination conditions and from the capacitances of the applied transistor and thus flat gain characteristic can be achieved. The method is well applicable for nearly unilateral devices like HBTs [1] and yields the highest gain-bandwidth product.
Źródło:: Journal of Telecommunications and Information Technology; 2003, 1; 20-23
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

Artykuł

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