Integrated chip
AssigneeInstitute of Semiconductors, Chinese Academy of Sciences
InventorsMing Li, Jian Tang, Yu Liu, Haiqing Yuan, Ninghua Zhu
Life of this patent
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Abstract
An integral chip is disclosed by embodiments of the present disclosure, including: two mono-mode vertical coupling gratings, two modulation modules, one 2×1 multi-mode interference coupler, and one dual-mode vertical coupling grating. The integral chip is capable of operating in dual wavelengths and dual polarization states by combination of polarization multiplexing and wavelength division multiplexing so as to realize modulation of complex formats and to enhance data modulation rate.
Claims9
An integrated chip, comprising a first mono-mode vertical coupling grating (1a), a first modulation module (1), a second mono-mode vertical coupling grating (1b), a second modulation module (2), a 2×1 multi-mode interference coupler (7) and a dual-mode vertical coupling grating (8),
- wherein the first mono-mode vertical coupling grating (1a) is configured to receive a laser light beam (a) which is externally inputted and to couple the laser light beam (a) into the first modulation module (1), which processes the laser light beam (a) by a phase shift, an intensity modulation and a mode conversion sequentially before outputting such to the 2×1 multi-mode interference coupler (7);
- wherein the second mono-mode vertical coupling grating (1b) is configured to receive a laser light beam (b) which is externally inputted and to couple the laser light beam (b) into the second modulation module (2), which processes the laser light beam (b) by a phase shift, an intensity modulation and a mode conversion sequentially before outputting such to the 2×1 multi-mode interference coupler (7);
- and
- wherein the laser light beam (a) and the laser light beam (b) are two laser light beams with different wavelengths;
- and
- the 2×1 multi-mode interference coupler (7) couples the two received laser light beams as an integral laser light beam and in turn sends the integral laser light beam into the dual-mode vertical coupling grating (8) which couples lights of different modes simultaneously into a multi-mode optical fiber.
Dependencies are inferred from the claim text.