Integrated Prism-Chirped Volume Bragg Grating For Dispersion Compensation
AssigneeGoogle Inc.
InventorsLiming Wang, Xiang Zhou, Cedric Fung Lam
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Abstract
Aspects of the disclosure are directed to a system for incorporating a CVBG (Chirped Volume Bragg Grating) into a prism to form a P-CVBG (Prism-Chirped Volume Bragg Grating) optical element for channel dispersion compensation. A prism region is configured to receive optical signals with multiple wavelengths and provide the wavelengths to the CVBG region by spatially separating the optical signals into various wavelengths. The CVBG region is configured to compensate for dispersion of the multiple wavelengths by reflecting the various wavelengths at different depths within the gratings of the CVBG region.
Claims20
An optical element for channel dispersion compensation, comprising:
- a prism region configured to receive one or more optical signals having multiple wavelengths;
- and
- a chirped volume Bragg grating (CVBG) region formed within the prism region.
System for channel dispersion compensation, comprising:
- an optical transceiver configured to generate multiple dimensional optical signals, the optical transceiver comprising:
- one or more lasers;
- one or more photodetectors;
- and
- an optical element, comprising:
- an angled prism region configured to receive the optical signals having multiple wavelengths;
- and
- a chirped volume Bragg grating (CVBG) region formed with the angled prism region.
Dependencies are inferred from the claim text.