Details

Autor(en) / Beteiligte

• Murtaza, S.S.
• Anselm, K.A.
• Hu, C.
• Nie, H.
• Streetman, B.G.
• Campbell, J.C.

Titel

Resonant-cavity enhanced (RCE) separate absorption and multiplication (SAM) avalanche photodetector (APD)

Ist Teil von

• IEEE photonics technology letters, 1995-12, Vol.7 (12), p.1486-1488

Ort / Verlag

IEEE

Erscheinungsjahr

1995

Quelle

IEEE Electronic Library (IEL)

Beschreibungen/Notizen

• We report a highly-efficient and wavelength-selective separate absorption and multiplication (SAM) avalanche photodiode (APD) with a thin (500 /spl Aring/) absorbing layer. The improved characteristics of the photodetector were obtained by placing the absorption and multiplication layers in a Fabry-Perot cavity. An external quantum efficiency of 77% was achieved with a spectral linewidth of less than 4 nm and an avalanche gain of more than 50. Noise measurements indicate that the impact ionization coefficient for electrons is larger than that for holes.