Laser remote method of oil pollution detection on the rough sea surface is described. The method uses additional information about near-water wind and a special geometrical scheme for surface illumination. It is demonstrated that the offered method allows control of two effects independently and simultaneously: wind wave smoothing and changes of sea surface reflection coefficient. And consequently it allows decision making about oil contamination presence on the sea surface with a high reliability.

No abstract

The theoretical and experimental investigation results for the regenerative regime of the 4-passes YAG:Nd laser amplifier with phase conjugation SBS mirror are presented. The role of the abnormal dispersion and Kerr nonlinearity of the active element on the forming of the output radiation parameters are shown. The gain of the amplifier 2,5* 1 04 was obtain experimentally.

In the article the authors analyze the change of French principles of participation in international conflicts after the new edition of White Book in 2013. Each White Book presents the aims and perspectives of the French defense policy development. The first one was published in 1972 during the Cold War and the next one in 1994 after the collapse of the Soviet Union when the major role in conflicts resolution was taken by UNO. The 21st century brings new challenges and threats as well as new methods of conflicts resolution taking into account their new nature and development. In the article we analyze new principles of conflicts resolution elaborated by Francois Holland, the book was published in 2013. The core principles of the previous Book (elaborated by N. Sarkozy) included the activation of the French role on the world arena and reduction of the military forces. But now taking into account that the majority of crises are international and involve different parties and countries, France focuses on collaboration with the other countries especially with the members of NATO. As an example the authors investigate policy of the French government in the operations in Mali and Libya where France plays the leading role. Both conflicts are not resolved and are going to become permanent. So, as it takes more forces and expenses, the French government tries to bring in more countries-allies to settle the issue.

The article considers the main directions of France’s migration policy at the turn of 20th – 21st centuries and focuses on the measures taken by the French government to regulate migration policy. The author concludes that nowadays a lot of work has been done in the country to solve the problem of migration, which has slightly weakened migration flows.