High-speed photodiodes for InP-based photonic integrated circuits Articles uri icon

publication date

  • April 2012

start page

  • 9172

end page

  • 9177

issue

  • 8

volume

  • 20

International Standard Serial Number (ISSN)

  • 1094-4087

abstract

  • We demonstrate the feasibility of monolithic integration of evanescently coupled Uni-Traveling Carrier Photodiodes (UTC-PDs) having a bandwidth exceeding 100 GHz with Multimode Interference (MMI) couplers. This platform is suitable for active-passive, butt-joint monolithic integration with various Multiple Quantum Well (MQW) devices for narrow linewidth millimeter-wave photomixing sources. The fabricated devices achieved a high 3-dB bandwidth of up to 110 GHz and a generated output power of more than 0 dBm (1 mW) at 120 GHz with a flat frequency response over the microwave F-band (90-140 GHz).