On-chip optical isolation device and method
By integrating the first filter and traveling wave modulator onto a semiconductor chip, an on-chip optical isolation device is developed, solving the problem that existing optical isolators are difficult to integrate onto semiconductor chips. This achieves effective isolation of reflected light and lossless passage of target frequency light in the optical link.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- TENCENT TECHNOLOGY (SHENZHEN) CO LTD
- Filing Date
- 2022-03-07
- Publication Date
- 2026-07-21
AI Technical Summary
Existing optical isolators are difficult to manufacture using semiconductor processes and materials, cannot be integrated onto semiconductor chips, and therefore cannot meet the optical isolation requirements of the semiconductor field.
An on-chip optical isolation device comprising a first filter and a traveling wave modulator is employed, manufactured using semiconductor technology and materials. The filter allows only light of the target frequency to pass through, while the traveling wave modulator does not modulate the light of the target frequency in the first direction but modulates the light of the target frequency in the second direction, thereby achieving optical isolation.
It achieves effective isolation of reflected light in the optical link without affecting the normal operation of the semiconductor chip, solving the problem that existing optical isolators are difficult to integrate onto semiconductor chips, and ensuring lossless passage of light at the target frequency.
Smart Images
Figure CN116774349B_ABST