High-saturation-intensity InGaAs/InP PIN waveguide photodetector

Andrew R. Williams; Albert L. Kellner; Paul K. L. Yu

doi:10.1117/12.177388

10 June 1994 High-saturation-intensity InGaAs/InP PIN waveguide photodetector

Andrew R. Williams, Albert L. Kellner, Paul K. L. Yu

Author Affiliations +

Proceedings Volume 2155, Optoelectronic Signal Processing for Phased-Array Antennas IV; (1994) https://doi.org/10.1117/12.177388
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

Abstract

High-frequency and high-responsivity photodetectors which possess a high saturation intensity are needed for high performance analog fiber optic links. We report the results of a high saturation intensity InGaAs/InP PIN waveguide photodetector. At an optical wavelength of 1.3 micrometers , the detector has a responsivity of 0.5 A/W and a flat frequency response from 800 MHz to 20 GHz. With a bias of -4 V, the normalized frequency response of the detector remains unchanged when optical powers up to 10 mW are incident on the detector. An initial linearity measurement is made by measuring the linearity of a fiber optic link which uses the detector with a DC photocurrent of 140 (mu) A as the receiver. The linearity of the link is limited by the modulator of the link and there is no detectable nonlinearity introduced by the detector.

Citation Download Citation

Andrew R. Williams, Albert L. Kellner, and Paul K. L. Yu "High-saturation-intensity InGaAs/InP PIN waveguide photodetector", Proc. SPIE 2155, Optoelectronic Signal Processing for Phased-Array Antennas IV, (10 June 1994); https://doi.org/10.1117/12.177388

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