The Expanded Mode Laser<cd0215d.gif>A Route to Low Cost Optoelectronics

Michael J. ROBERTSON; Ian F. LEALMAN; John V. COLLINS

The Expanded Mode LaserA Route to Low Cost Optoelectronics

Michael J. ROBERTSON, Ian F. LEALMAN, John V. COLLINS

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At present, the widespread use of optoelectronic components is restricted by their high cost. Up to 90% of the cost of a semiconductor laser is in the packaging, with the fibre-chip alignment the major part. In this paper, an approach to low cost packaging is described, which uses an integrated mode size transformer to match the laser output to the fibre mode. This improves the alignment tolerance of the laser-fibre coupling by more than a factor of three, allowing simple passive alignment approaches to be used. It requires only minor modification to the processing of a standard buried heterostructure laser, and allows the coupling efficiency to be optimised without compromising the performance of the laser. The design of a silicon submount for passive laser-fibre alignment is described and coupling losses as low as 1.2 dB to standard cleaved single mode fibre are reported. The technology that has been developed is generic and its successful application to other optoelectronic devices such as fibre grating lasers, semiconductor optical amplifiers and laser arrays is described.

Publication: IEICE TRANSACTIONS on Electronics Vol.E80-C No.1 pp.17-23

Publication Date: 1997/01/25

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Type of Manuscript: Special Section INVITED PAPER (Special Issue on Devices, Packaging Technology, and Subsystems for the Optical Access Network)

Category: LD, PD and modulator

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Michael J. ROBERTSON, Ian F. LEALMAN, John V. COLLINS, "The Expanded Mode LaserA Route to Low Cost Optoelectronics" in IEICE TRANSACTIONS on Electronics, vol. E80-C, no. 1, pp. 17-23, January 1997, doi: .
Abstract: At present, the widespread use of optoelectronic components is restricted by their high cost. Up to 90% of the cost of a semiconductor laser is in the packaging, with the fibre-chip alignment the major part. In this paper, an approach to low cost packaging is described, which uses an integrated mode size transformer to match the laser output to the fibre mode. This improves the alignment tolerance of the laser-fibre coupling by more than a factor of three, allowing simple passive alignment approaches to be used. It requires only minor modification to the processing of a standard buried heterostructure laser, and allows the coupling efficiency to be optimised without compromising the performance of the laser. The design of a silicon submount for passive laser-fibre alignment is described and coupling losses as low as 1.2 dB to standard cleaved single mode fibre are reported. The technology that has been developed is generic and its successful application to other optoelectronic devices such as fibre grating lasers, semiconductor optical amplifiers and laser arrays is described.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e80-c_1_17/_p

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@ARTICLE{e80-c_1_17,
author={Michael J. ROBERTSON, Ian F. LEALMAN, John V. COLLINS, },
journal={IEICE TRANSACTIONS on Electronics},
title={The Expanded Mode LaserA Route to Low Cost Optoelectronics},
year={1997},
volume={E80-C},
number={1},
pages={17-23},
abstract={At present, the widespread use of optoelectronic components is restricted by their high cost. Up to 90% of the cost of a semiconductor laser is in the packaging, with the fibre-chip alignment the major part. In this paper, an approach to low cost packaging is described, which uses an integrated mode size transformer to match the laser output to the fibre mode. This improves the alignment tolerance of the laser-fibre coupling by more than a factor of three, allowing simple passive alignment approaches to be used. It requires only minor modification to the processing of a standard buried heterostructure laser, and allows the coupling efficiency to be optimised without compromising the performance of the laser. The design of a silicon submount for passive laser-fibre alignment is described and coupling losses as low as 1.2 dB to standard cleaved single mode fibre are reported. The technology that has been developed is generic and its successful application to other optoelectronic devices such as fibre grating lasers, semiconductor optical amplifiers and laser arrays is described.},
keywords={},
doi={},
ISSN={},
month={January},}

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TY - JOUR
TI - The Expanded Mode LaserA Route to Low Cost Optoelectronics
T2 - IEICE TRANSACTIONS on Electronics
SP - 17
EP - 23
AU - Michael J. ROBERTSON
AU - Ian F. LEALMAN
AU - John V. COLLINS
PY - 1997
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E80-C
IS - 1
JA - IEICE TRANSACTIONS on Electronics
Y1 - January 1997
AB - At present, the widespread use of optoelectronic components is restricted by their high cost. Up to 90% of the cost of a semiconductor laser is in the packaging, with the fibre-chip alignment the major part. In this paper, an approach to low cost packaging is described, which uses an integrated mode size transformer to match the laser output to the fibre mode. This improves the alignment tolerance of the laser-fibre coupling by more than a factor of three, allowing simple passive alignment approaches to be used. It requires only minor modification to the processing of a standard buried heterostructure laser, and allows the coupling efficiency to be optimised without compromising the performance of the laser. The design of a silicon submount for passive laser-fibre alignment is described and coupling losses as low as 1.2 dB to standard cleaved single mode fibre are reported. The technology that has been developed is generic and its successful application to other optoelectronic devices such as fibre grating lasers, semiconductor optical amplifiers and laser arrays is described.
ER -