2010 Fiscal Year Final Research Report

Time-to-space mapping device and its applications

Research Project

Project/Area Number	21760039
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Single-year Grants
Research Field	Applied optics/Quantum optical engineering
Research Institution	Osaka University
Principal Investigator	HISATAKE Shintaro Osaka University, 大学院・基礎工学研究科, 助教 (20362642)
Project Period (FY)	2009 – 2010
Keywords	時空間マッピング / 光制御 / 光情報処理 / 偏向器 / 光周波数コム / パルス生成
Research Abstract	We proposed and demonstrated a linear time-to-space mapping system, which was based on two times electrooptic sinusoidal beam deflection. The proof-of-concept experiments were carried out and the temporal resolution of 5 ps was demonstrated using traveling-wave type quasi-velosity-matched elec-trooptic beam deflectors. We also demonstrated the generation of an optical frequency comb with a Gaussian spectrum using a continuous-wave laser, based on spatial convolution of a slit and a periodically moving optical beam spot in a linear time-to-space mapping system. In a proof-of-concept experiment, a 16.25-GHz-spaced, 240-GHz-wide Gaussian-envelope OFC (corresponding to 1.8 ps Gaussian pulse generation) was demonstrated.