High resolution on-chip optical filter array based on double subwavelength grating reflectors
- California Inst. of Technology (CalTech), Pasadena, CA (United States). T. J. Watson Laboratory of Applied Physics
- California Inst. of Technology (CalTech), Pasadena, CA (United States). T. J. Watson Laboratory of Applied Physics; Samsung Advanced Institute of Technology (SAIT), Suwon-si (South Korea)
An optical filter array consisting of vertical narrow-band Fabry-Pèrot (FP) resonators formed by two highly reflective high contrast subwavelength grating mirrors is reported. The filters are designed to cover a wide range of operation wavelengths ( Δλ/λ=5%) just by changing the in-plane grating parameters while the device thickness is maintained constant. In conclusion, operation in the telecom band with transmission efficiencies greater than 40% and quality factors greater than 1,000 are measured experimentally for filters fabricated on the same substrate.
- Research Organization:
- California Institute of Technology (CalTech), Pasadena, CA (United States); Energy Frontier Research Centers (EFRC) (United States). Light-Material Interactions in Energy Conversion (LMI)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- SC0001293
- OSTI ID:
- 1241136
- Journal Information:
- Optics Express, Vol. 23, Issue 23; ISSN 1094-4087
- Publisher:
- Optical Society of America (OSA)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 20 works
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