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Linear time-to-space mapping system using double electrooptic beam deflectors.

Shintaro Hisatake¹, Keiji Tada, Tadao Nagatsuma

¹Division of Advanced Electronics and Optical Science, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan. hisatake@ee.es.osaka-u.ac.jp

|December 24, 2008

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We developed a linear time-to-space mapping system using electrooptic sinusoidal beam deflection. This system achieves a temporal resolution of 5 picoseconds for ultrafast optical signal characterization and waveform shaping.

Area of Science:

Optoelectronics
Ultrafast optics
Signal processing

Background:

Accurate characterization of ultrafast optical signals is crucial for advanced applications.
Existing methods for temporal mapping can be complex or lack sufficient resolution.

Purpose of the Study:

To propose and demonstrate a novel linear time-to-space mapping system.
To achieve high temporal resolution for ultrafast optical signal analysis.

Main Methods:

Utilizing two electrooptic sinusoidal beam deflectors with orthogonal directions and a pi/2 phase shift.
Achieving a circular optical beam trajectory for uniform velocity motion.
Employing traveling-wave type quasi-velocity-matched electrooptic beam deflectors.

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Main Results:

Demonstrated a linear time-to-space mapping system.
Achieved a temporal resolution of 5 picoseconds (ps).
Verified uniform beam spot velocity for linear mapping.

Conclusions:

The developed system enables linear time-to-space mapping with high temporal resolution.
The system is suitable for characterizing ultrafast optical signals.
Potential applications include optical arbitrary waveform shaping for microwave/millimeter-wave generation.