Diode-laser-to-waveguide butt coupling

Pentti Karioja, Dennis Howe

Research output: Contribution to journalArticleScientificpeer-review

20 Citations (Scopus)

Abstract

A diode-laser-to-waveguide butt-coupling model is described. The model takes into consideration the Fabry–Perot reflection and transmission of the étalon formed by the laser front facet and the waveguide entrance facet. The model predicts coupling efficiency and the coupled-power fluctuations that occur versus the separation between the laser and the waveguide. Calculations performed for Fabry–Perot-laser-to-KTP waveguide coupling show that the transverse and the angular alignment tolerances of the waveguide can be increased when the waveguide entrance facet is antireflection coated. The longitudinal alignment tolerance of the waveguide can be increased by use of an index-matching gel between the laser and the waveguide.
Original languageEnglish
Pages (from-to)404-415
Number of pages12
JournalApplied Optics
Volume35
Issue number3
DOIs
Publication statusPublished - 1996
MoE publication typeA1 Journal article-refereed

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Semiconductor lasers
Waveguides
semiconductor lasers
waveguides
flat surfaces
Lasers
entrances
lasers
alignment
Gels
gels

Cite this

Karioja, Pentti ; Howe, Dennis. / Diode-laser-to-waveguide butt coupling. In: Applied Optics. 1996 ; Vol. 35, No. 3. pp. 404-415.
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abstract = "A diode-laser-to-waveguide butt-coupling model is described. The model takes into consideration the Fabry–Perot reflection and transmission of the {\'e}talon formed by the laser front facet and the waveguide entrance facet. The model predicts coupling efficiency and the coupled-power fluctuations that occur versus the separation between the laser and the waveguide. Calculations performed for Fabry–Perot-laser-to-KTP waveguide coupling show that the transverse and the angular alignment tolerances of the waveguide can be increased when the waveguide entrance facet is antireflection coated. The longitudinal alignment tolerance of the waveguide can be increased by use of an index-matching gel between the laser and the waveguide.",
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Diode-laser-to-waveguide butt coupling. / Karioja, Pentti; Howe, Dennis.

In: Applied Optics, Vol. 35, No. 3, 1996, p. 404-415.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Diode-laser-to-waveguide butt coupling

AU - Karioja, Pentti

AU - Howe, Dennis

PY - 1996

Y1 - 1996

N2 - A diode-laser-to-waveguide butt-coupling model is described. The model takes into consideration the Fabry–Perot reflection and transmission of the étalon formed by the laser front facet and the waveguide entrance facet. The model predicts coupling efficiency and the coupled-power fluctuations that occur versus the separation between the laser and the waveguide. Calculations performed for Fabry–Perot-laser-to-KTP waveguide coupling show that the transverse and the angular alignment tolerances of the waveguide can be increased when the waveguide entrance facet is antireflection coated. The longitudinal alignment tolerance of the waveguide can be increased by use of an index-matching gel between the laser and the waveguide.

AB - A diode-laser-to-waveguide butt-coupling model is described. The model takes into consideration the Fabry–Perot reflection and transmission of the étalon formed by the laser front facet and the waveguide entrance facet. The model predicts coupling efficiency and the coupled-power fluctuations that occur versus the separation between the laser and the waveguide. Calculations performed for Fabry–Perot-laser-to-KTP waveguide coupling show that the transverse and the angular alignment tolerances of the waveguide can be increased when the waveguide entrance facet is antireflection coated. The longitudinal alignment tolerance of the waveguide can be increased by use of an index-matching gel between the laser and the waveguide.

U2 - 10.1364/AO.35.000404

DO - 10.1364/AO.35.000404

M3 - Article

VL - 35

SP - 404

EP - 415

JO - Applied Optics

JF - Applied Optics

SN - 1559-128X

IS - 3

ER -