Single-mode fiber packaging for semiconductor optical devices
| Autor: | L.A. Reith, J.W. Mann, Gail R. Lalk, N.C. Andreadakis, C.E. Zah |
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| Rok vydání: | 1990 |
| Předmět: |
Optical amplifier
Optical fiber Materials science Optical isolator business.industry General Engineering Single-mode optical fiber Physics::Optics Industrial and Manufacturing Engineering Electronic Optical and Magnetic Materials law.invention Lens (optics) Optics law Optoelectronics Chip carrier Stimulated emission Electrical and Electronic Engineering business Optical filter |
| Zdroj: | IEEE Transactions on Components, Hybrids, and Manufacturing Technology. 13:791-797 |
| ISSN: | 0148-6411 |
| Popis: | The authors describe an approach which increases package assembly alignment tolerances substantially while demonstrating coupling efficiencies as high as 40%. This has been accomplished by utilizing a spherical lens to couple from the device into single-mode fiber. The ball lens is mounted directly on the chip carrier for maximum thermal and mechanical stability and is aligned mechanically rather than actively. The single-mode fiber alignment is done actively, and the fiber is positioned so as to compensate for misalignments of the ball lens. Coupling to the single-mode fiber was done directly and by using a second lens affixed to the end of the fiber. In addition to relaxed alignment tolerances, this coupling scheme has other advantages. The working distance between the ball lens and single-mode fiber is typically approximately=2-4 mm. This allows for easy insertion of microoptical components such as optical isolators or filters into the package. The scheme also lends itself to a flexible, modular approach to packaging. The dual-lens coupling technique has been used to package optical amplifiers. A fiber-to-fiber gain as large as 10 dB has been demonstrated using this coupling technique. > |
| Databáze: | OpenAIRE |
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