High butt-coupling efficiency to single-mode fibers using a 1.55-μm InGaAsP laser integrated with a tapered ridge mode transformer

We demonstrate a tapered ridge mode expanded laser with reduced far-field divergence angles (9.5/spl deg//spl times/22/spl deg/) and improved coupling to cleaved single-mode fibers (SMF) (3.7-dB coupling loss). This device was grown in a single epitaxial growth and was processed using conventional f...

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Veröffentlicht in:	IEEE photonics technology letters 1997-11, Vol.9 (11), p.1472-1474
Hauptverfasser:	Vusirikala, V., Saini, S.S., Bartolo, R.E., Whaley, R., Agarwala, S., Dagenais, M., Johnson, F.G., Stone, D.
Format:	Artikel
Sprache:	eng
Schlagworte:	Epitaxial growth Fiber lasers Laser modes Manufacturing processes Optical beam splitting Optical coupling Optical device fabrication Optical devices Optical fiber devices Optical fiber losses
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