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Proceedings Paper

High-NA planar microlens for LD array
Author(s): Masahiro Oikawa; Hideki Imanishi; Takashi Kishimoto
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Paper Abstract

The paper describes a new high NA planar microlens witha swelled structure (S- PML) designed for a laser diode (LD) array. The center to center spacing of the S-PML is 250 micrometers which is adjusted to the most ordinary LD array to be used in optical fiber communication system. The diameter of the S-PM is 85 micrometers and the focal length is 110 micrometers . The NA of the S-PML is 0.37. We evaluate the coupling loss between an LD and a single mode fiber using the S- PML. The coupling losses were 6.2 dB for 1.3 micrometers LD and 7.6 dB for 1.55 micrometers LD, respectively.

Paper Details

Date Published: 13 January 1993
PDF: 9 pages
Proc. SPIE 1751, Miniature and Micro-Optics: Fabrication and System Applications II, (13 January 1993); doi: 10.1117/12.138887
Show Author Affiliations
Masahiro Oikawa, Nippon Sheet Glass Co., Ltd. (Japan)
Hideki Imanishi, Nippon Sheet Glass Co., Ltd. (Japan)
Takashi Kishimoto, Nippon Sheet Glass Co., Ltd. (Japan)


Published in SPIE Proceedings Vol. 1751:
Miniature and Micro-Optics: Fabrication and System Applications II
Chandrasekhar Roychoudhuri; Wilfrid B. Veldkamp, Editor(s)

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