GaAs-AlGaAs QW diluted waveguide laser with low-loss, alignment-tolerant coupling to a single-mode fiber
| Autor: | S. Kareenahalli, B. Gopalan, C.E.C. Wood, Dennis Stone, Mario Dagenais, Vijay Vusirikala, S.A. Merritt |
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| Rok vydání: | 1996 |
| Předmět: |
Coupling
Materials science business.industry Single-mode optical fiber Laser Waveguide (optics) Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Gallium arsenide law.invention Transverse plane chemistry.chemical_compound Optics chemistry law Optoelectronics Fiber Electrical and Electronic Engineering business Gaas algaas |
| Zdroj: | IEEE Photonics Technology Letters. 8:1130-1132 |
| ISSN: | 1941-0174 1041-1135 |
| DOI: | 10.1109/68.531812 |
| Popis: | We report on low-loss, alignment-tolerant coupling between a single-quantum-well (SQW) GaAs-AlGaAs laser and a cleaved single-mode fiber. The laser was fabricated using conventional growth and processing techniques, and did not involve any regrowth. The mode size in the transverse direction was expanded by using a diluted waveguide structure. A butt-coupling efficiency of 66% was achieved against a theoretically possible 78% (which does not correct for Fresnel losses). In addition, large alignment tolerances for a 1-dB excess loss of /spl plusmn/2.0 pm and /spl plusmn/1.0 /spl mu/m were measured in the lateral and the transverse directions, respectively. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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