Monitoring photodetector for integrated photonic devices
US7598527B2 · kind B2 · utility
15Cited by
15References
15Claims
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Key dates
| Filing date | Jan 5, 2006 |
| Grant date | Oct 6, 2009 |
| Priority date | — |
| Expiry date | Jan 5, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/544
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser and detector integrated on corresponding epitaxial layers of a single chip cooperate with on-chip and/or external optics to couple light of a first wavelength emitted by the laser to a single external device such as an optical fiber and to simultaneously couple light of a different wavelength received from the external device to the detector to provide bidirectional photonic operation. Multiple lasers and detectors may be integrated on the chip to provide multiple bidirectional channels. A monitoring photodetector is fabricated in the detector epitaxy adjacent one end of the laser.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.