High-NA planar microlens for LD array

Masahiro Oikawa; Hideki Imanishi; Takashi Kishimoto

doi:10.1117/12.138887

13 January 1993 High-NA planar microlens for LD array

Masahiro Oikawa, Hideki Imanishi, Takashi Kishimoto

Proceedings Volume 1751, Miniature and Micro-Optics: Fabrication and System Applications II; (1993) https://doi.org/10.1117/12.138887
Event: San Diego '92, 1992, San Diego, CA, United States

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.

Citation Download Citation

Masahiro Oikawa, Hideki Imanishi, and Takashi Kishimoto "High-NA planar microlens for LD array", Proc. SPIE 1751, Miniature and Micro-Optics: Fabrication and System Applications II, (13 January 1993); https://doi.org/10.1117/12.138887

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