A symmetric InGaAlAs waveguide photodiode for low cost modules is investigated. A high responsivity of 0.95 A/W and a low dark current after 1900 hours aging of 300 pA are demonstrated. In this paper, we optimize the symmetric doublecore structure for higher responsivity while maintaining a wide coupling tolerance at a low operating voltage. We also describe the use of a surface passivation technique to achieve low dark current operation over a wide temperature range and after aging at 200 C.
A symmetric double-core InGaAlAs waveguide photodiode for hybrid integration on optical platforms
1996-01-01
178620 byte
Conference paper
Electronic Resource
English
A Symmetric Double-Core InGaAlAs Waveguide Photodiode for Hybrid Integration on Optical Platforms
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