Chaoyi Li, Junming An, Jiashun Zhang, Liangliang Wang, Jianguang Li, Yue Wang, Xiaojie Yin, Hongjie Wang, Yuanda Wu. 4 × 20 GHz silica-based AWG hybrid integrated receiver optical sub-assemblies[J]. Chinese Optics Letters, 2018, 16(6): 060603
- Chinese Optics Letters
- Vol. 16, Issue 6, 060603 (2018)
Fig. 1. Configuration of ROSA. (a) Circuit diagram. (b) Package schematic.
Fig. 2. Relationship between the effective refractive index (n eff
Fig. 3. Longitudinal section of propagation simulation with an angle of 40°.
Fig. 4. Transmission loss (a) at different distances and wavelengths under the 40° angle and (b) at different angles and wavelengths under 20 μm distance. (The simulated light source contains both the polarizations simultaneously.)
Fig. 5. Spot profiles under the 20 μm transmission distance at (a) 45°, (b) 42°, (c) 40°, and (d) 38°.
Fig. 6. SEM photographs of (a) single-mode waveguides and (b) a multimode waveguide.
Fig. 7. Photograph of ROSA.
Fig. 8. ROSA responsivity in (a) CWDM and (b) LAN-WDM (gray areas indicate CWDM and LAN-WDM grid).
Fig. 9. Linearity in CWDM and LAN-WDM.
Fig. 10. Small signal frequency responses in CWDM and LAN-WDM.
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Table 1. Performance Comparison of ROSAs
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