Contradirectional propagation through active, first-order, almost-periodic, corrugated
waveguide gratings is analyzed by using both coupled-mode theory and a combined …

Describes the analysis, fabrication, and characterization of chirped grating tunable
distributed-feedback (CGT DFB) semiconductor lasers. Both theoretical and experimental …

A new kind of distributed feedback (DFB) laser with a linearly chirped grating is proposed
and investigated theoretically for the first time. The eigenmodes of the chirped grating DFB …

Phase‐shifted distributed feedback laser with linearly chirped grating (PS‐CG‐DFB) was
analyzed. The field distribution, threshold gain difference between the lasing mode and the …

BACKGROUND In this specification the term “light'will be used in the sense that it is used in
optical systems to mean not just visible light, but also electromagnetic radiation having a …

A new method for designing optical waveguide grating structures by an optimization
technique is proposed based on the concept of narrow-band modulation. A grating profile is …

A new method for the design of optical waveguide grating structures is described. This
technique enables the production of gratings with given reflection profiles. Designs have …

Using the wavetheoretical analysis, this paper investigates the lasing characteristics of three
sectioned single-mode DFB semiconductor lasers with chirped gratings. Analytical …

Используемые в настоящее время способы управления длиной волны генерации
полупроводниковых лазеров можно разделить на следующие группы: перестройка …

Threshold conditions of a distributed feedback (DFB) laser with a linearly chirped grating are
investigated using a new and efficient method. DFB laser with chirped grating is found to …