Compact silicon photonic resonance-assisted variable optical attenuator
- Univ. of California, San Diego, CA (United States). Dept. of Electrical & Computer Engineering
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States). Applied Photonic Microsystems
Here, a two-part silicon photonic variable optical attenuator is demonstrated in a compact footprint which can provide a high extinction ratio at wavelengths between 1520 nm and 1620 nm. The device was made by following the conventional p-i-n waveguide section by a high-extinction-ratio second-order microring filter section. The rings provide additional on-off contrast by utilizing a thermal resonance shift, which harvested the heat dissipated by current injection in the p-i-n junction. Finally, we derive and discuss a simple thermal-resistance model in explanation of these effects.
- Research Organization:
- Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- USDOE National Nuclear Security Administration (NNSA); National Science Foundation (NSF); National Aeronautics and Space Administration (NASA)
- Grant/Contract Number:
- AC04-94AL85000
- OSTI ID:
- 1338401
- Report Number(s):
- SAND2016-12881J; 650088
- Journal Information:
- Optics Express, Journal Name: Optics Express Journal Issue: 24 Vol. 24; ISSN 1094-4087; ISSN OPEXFF
- Publisher:
- Optical Society of America (OSA)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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