Carrier relaxation enhanced by optical confinement in InP/InGaAs phase-shifted distributed Bragg reflector

K Ogawa,Y Matsui,K Ouchi,T Itatani

doi:10.1109/iciprm.1998.712735

Carrier relaxation enhanced by optical confinement in InP/InGaAs phase-shifted distributed Bragg reflector

K Ogawa, Y Matsui + Show 2 more

https://doi.org/10.1109/iciprm.1998.712735

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Publication Date: May 11, 1998

Affiliation: Photonics Electronics Technology Research Association, Hitachi (Japan), University of Electro-Communications

#Bragg Reflector #Optical Confinement + Show 8 more

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Abstract

Ultrafast carrier dynamics in an InP/InGaAs phase-shifted distributed Bragg reflector is studied by means of transient reflectance measurements. Transient reflectance of the phase-shifted Bragg reflector shows ultrafast relaxation of relaxation time constant of /spl ap/200 fs due to carrier-carrier scattering. Such ultrafast relaxation is not observed in a bulk InGaAs. Carrier-carrier scattering is thus enhanced in the phase-shifted Bragg reflector by optical confinement.

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