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TAPERED WAVE-GUIDE INGAAS/INGAASP MULTIPLE-QUANTUM-WELL LASERS
被引:128
|作者:
KOCH, TL
KOREN, U
EISENSTEIN, G
YOUNG, MG
ORON, M
GILES, CR
MILLER, BI
机构:
[1] AT&T Bell Laboratories, Holmdel
关键词:
D O I:
10.1109/68.47056
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
We propose and demonstrate the application of ultra-thin etch-stop fabrication techniques to adiabatically expand the vertical optical mode size in 1.5 µm InGaAs/InGaAsP MQW lasers using a tapered-core passive intracavity waveguide structure. We achieve 30% differential quantum efficiency out the tapered facet, far-field FWHM of ~ 12°, and a butt-coupling efficiency into a cleaved fiber of -4.2 dB, with -1 dB alignment tolerances of ~ ± 3 ¼m. © 1990 IEEE
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页码:88 / 90
页数:3
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