Generation of ultrashort optical pulses by efficient 10-GHz-order electro-optic deflector

Shintaro Hisatake; Kyoji Shibuya; Tetsuro Kobayashi

doi:10.1117/12.567222

16 November 2004 Generation of ultrashort optical pulses by efficient 10-GHz-order electro-optic deflector

Shintaro Hisatake, Kyoji Shibuya, Tetsuro Kobayashi

Proceedings Volume 5579, Photonics North 2004: Photonic Applications in Telecommunications, Sensors, Software, and Lasers; (2004) https://doi.org/10.1117/12.567222
Event: Photonics North, 2004, Ottawa, Ontario, Canada

Abstract

We have experimentally demonstrated ultrashort optical pulse generation from a continuous wave (CW) laser using an external electrooptic deflector (EOD). Highly efficient EOD operating at 16.25 GHz has been realized with periodically domain-inverted LiTaO₃ crystal. The shape of domain inversion region has been theoretically designed in consideration of the velocity mismatching between the modulation microwave and the light so as to realize spatially linearly-varying phase shift. The deflected CW Ar laser beam passed the Fourier transform lens, and then optical pulses were picked out at a repetition rate of 32.5 GHz through a narrow slit, which was placed at the focal point of the lens. The pulses were observed by streak camera (Hamamatsu: C5948) and the achieved shortest pulse width was estimated to be 0.9 ± 0.1 ps.

Citation Download Citation

Shintaro Hisatake, Kyoji Shibuya, and Tetsuro Kobayashi "Generation of ultrashort optical pulses by efficient 10-GHz-order electro-optic deflector", Proc. SPIE 5579, Photonics North 2004: Photonic Applications in Telecommunications, Sensors, Software, and Lasers, (16 November 2004); https://doi.org/10.1117/12.567222

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KEYWORDS

Modulation

Microwave radiation

Electro optics

Crystals

Continuous wave operation

Pulsed laser operation

Streak cameras

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