Monolithically integrated DWDM receiver

1 January 1993

journal article
Published by Institution of Engineering and Technology (IET) in IEE Proceedings J Optoelectronics

Vol. 140 (1) , 71-74
https://doi.org/10.1049/ip-j.1993.0013

Abstract

A grating spectrometer integrated monolithically in the InGaAsP system with a photodiode array for a dense WDM system is presented for the 1.5 μm wavelength region. The chip provides more than 30 wavelength channels with a spacing of 4 nm, a channel crosstalk of approximately −15 dB, an internal photodiode efficiency of 90% and a photodiode capacitance of 0.33 pF. The chip needs no optical adjustments. It is therefore well suited to mass production.

Keywords

MONOLITHIC INTEGRATION
OPTICAL RECEIVERS
CHIP
GRATING SPECTROMETER
MASS PRODUCTION
CHANNEL CROSSTALK
0.33 PF
INTERNAL PHOTODIODE EFFICIENCY
WAVELENGTH CHANNELS
INGAASP SYSTEM
1.5 MICRON
DENSE WDM SYSTEM
90 PERCENT
PHOTODIODE ARRAY
PHOTODIODE CAPACITANCE
SEMICONDUCTORS

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