LOW-LOSS FIBER-CHIP-COUPLING WITH LARGE ALIGNMENT TOLERANCES BY TAPERED INGAASP INP WAVE-GUIDE STRUCTURE/

Authors
MULLER G SAUER B WENGER G SEEBERGER D
Citation
G. Muller et al., LOW-LOSS FIBER-CHIP-COUPLING WITH LARGE ALIGNMENT TOLERANCES BY TAPERED INGAASP INP WAVE-GUIDE STRUCTURE/, AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS, 47(3), 1993, pp. 186-189
Citations number
NO
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
ISSN journal
14348411 → ACNP
Volume
47
Issue
3
Year of publication
1993
Pages
186 - 189
Database
ISI
SICI code
1434-8411(1993)47:3<186:LFWLAT>2.0.ZU;2-I
Abstract
An optical spot size transformer for efficient butt-coupling of single mode fibres to optoelectronic InGaAsP/InP chips is investigated. The losses associated with the transformation of the fibre mode into a sma ll elliptical mode are calculated with the help of a simple theoretica l model. The measured transmission loss of 2.0 dB is in good agreement with the theoretical result. The alignment tolerances (corresponding to 90% of maximum transmission) for the butt-coupled fibre amount to /- 2.0 mum for the lateral offset, +/- 1.5 mum for the vertical offset and 25 mum for the separation of fibre and chip.