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On-chip free beam optics on a polymer-based photonic integration platform.
Optics Express
|November 3, 2017
Summary
This study introduces on-chip free beam optics using Gradient Index (GRIN) lenses in polymer photonic components. This enables efficient power transmission and demonstrates a feasible integrated wavelength meter with stable resonators.
Area of Science:
- Photonics
- Optics
- Materials Science
Background:
- Waveguide-based optics lack direct beam access, limiting applications.
- Integrated photonic components require efficient beam management and stability.
Purpose of the Study:
- To present on-chip free beam optics using Gradient Index (GRIN) lenses on polymer photonic components.
- To demonstrate low-loss power transmission and a stable resonator for integrated wavelength meters.
Main Methods:
- Assembly of Gradient Index (GRIN) lenses into polymer-based photonic chips.
- Implementation of free-space optics within the chip.
- Integration of optical isolators using bulk coated glass.
Main Results:
- Achieved low-loss power transmission over 1432 µm.
- Demonstrated a stable resonator with a wavelength shift of 0.002 nm/°C, meeting ITU-T grid requirements for ± 20 °C.
- Showcased the feasibility of an integrated wavelength meter by combining resonators in a free-space section.
Conclusions:
- On-chip free beam optics with GRIN lenses are viable for polymer photonic components.
- The proposed design enables stable operation and integration of multiple optical elements.
- This approach facilitates the development of advanced integrated photonic devices like wavelength meters.
