Efficient coupling between laser diodes with a highly elliptic field and single-mode fibers by means of GIO fibers

A new configuration is proposed for efficient coupling between laser diodes (LDs) with a highly elliptic field and single-mode fibers (SMFs). Graded-index oval-core (GIO) fibers were employed to match the LD and SMF field profiles. Experiments show that the coupling loss between the LD, operating at...

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Bibliographic Details
Published inIEEE photonics technology letters Vol. 13; no. 11; pp. 1191 - 1193
Main Authors Ogura, A., Kuchiki, S., Shiraishi, K., Ohta, K., Oishi, I.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.11.2001
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Aspect ratio
Coupling circuits
Diode lasers
Fibers
Joining
Laser diodes
Lenses
Noise levels
Optical coupling
Optical devices
Optical fiber applications
Optical fiber devices
Optical fibers
Optical losses
Photonics
Semiconductor optical amplifiers
Tolerances
Wavelengths
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Summary:A new configuration is proposed for efficient coupling between laser diodes (LDs) with a highly elliptic field and single-mode fibers (SMFs). Graded-index oval-core (GIO) fibers were employed to match the LD and SMF field profiles. Experiments show that the coupling loss between the LD, operating at a wavelength of 980 nm with a field profile aspect ratio of 5.9, and SMF is effectively 0.6 dB. The tolerances for lateral displacements are roughly an order of magnitude larger than those in the conventional wedge-shaped lensed-fiber coupling scheme.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1041-1135
1941-0174
DOI:10.1109/68.959360