Study of an Integration Platform Based on an Adiabatic Active-Layer Waveguide Connection for InP Photonic Device Integration Mirroring That of Heterogeneous Integration on Silicon
- Northwestern Univ., Evanston, IL (United States); Jilin Univ., Changchun (China)
- Northwestern Univ., Evanston, IL (United States); Huazhong Univ. of Science and Technology, Wuhan (China)
- Jilin Univ., Changchun (China)
- OptoNet Inc., Evanston, IL (United States)
- Huazhong Univ. of Science and Technology, Wuhan (China)
- Northwestern Univ., Evanston, IL (United States)
In this work, a photonic device integration platform capable of integration of active-passive InP-based photonic devices without the use of material regrowth is introduced. The platform makes use of an adiabatic active-layer waveguide connection (ALWC) to move an optical beam between active and passive devices. The performance of this platform is analyzed using an example made up of four main sections: (1) a fiber coupling section for enabling vertical beam coupling from optical fiber into the photonic chip using a mode-matched surface grating with apodized duty cycles; (2) a transparent waveguide section for realizing passive photonic devices; (3) an adiabatic mode connection structure for moving the optical beam between passive and active device sections; and (4) an active device section for realizing active photonic devices. It is shown that the coupled surface grating, when added with a bottom gold reflector, can achieve a high chip-to-fiber coupling efficiency (CE) of 88.3% at 1550 nm. The adiabatic active-layer mode connection structure has an optical loss of lower than 1% (CE > 99%). The active device section can achieve an optical gain of 20 dB/mm with the use of only 3 quantum wells. The optimized structural parameters of the entire waveguide module are analyzed and discussed.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States). Center for Nanoscale Materials (CNM)
- Sponsoring Organization:
- National Aeronautics and Space Administration (NASA); USDOE Office of Science (SC)
- Grant/Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1983130
- Journal Information:
- Photonics, Journal Name: Photonics Journal Issue: 10 Vol. 8; ISSN 2304-6732
- Publisher:
- MDPICopyright Statement
- Country of Publication:
- United States
- Language:
- English
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