Free‐carrier and thermal grating effects in gallium phosphide | Zendy

Shimura T. | Zendy; Boothroyd S. A. | Zendy; Chrostowski J. | Zendy

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Free‐carrier and thermal grating effects in gallium phosphide

Author(s) -

Shimura T.,

Boothroyd S. A.,

Chrostowski J.

Publication year - 1992

Publication title -

microwave and optical technology letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.304

H-Index - 76

eISSN - 1098-2760

pISSN - 0895-2477

DOI - 10.1002/mop.4650051213

Subject(s) - gallium phosphide , grating , materials science , optics , free carrier , diffraction grating , indium phosphide , optoelectronics , thermal , diffraction , gallium arsenide , physics , meteorology

We report the first observation of the simultaneous creation and competition between a free‐carrier light‐induced diffraction grating and an accompanying thermal grating in gallium phosphide. The lifetimes of the two gratings are widely different and the nonlinear index n 2 = 1 × 10 −11 cm 2 /W for the free‐carrier grating is almost an order of magnitude larger than the thermal effect of a 100‐psec mode‐locked pulse. © 1992 John Wiley & Sons, Inc.

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