High Efficient and Small Sized Coupling Optics for Monolithic Array LD Module

Junichiro YAMASHITA  Akihiro ADACHI  Shinichi KANEKO  Tsutomu HASHIMOTO  

Publication
IEICE TRANSACTIONS on Electronics   Vol.E77-C   No.11   pp.1776-1780
Publication Date: 1994/11/25
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Electromagnetic Theory)
Category: 
Keyword: 
optical communication,  optical FDM,  optics,  laser diode array,  

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Summary: 
Coupling optics for a monolithic array LD module has been developed. High efficient and small sized confocal optics with aspheric lenses based on hyperbolic surfaces has been designed to achieve the uniformity of coupling loss. A small sized (7.2 cc) 4 channel array LD module with this optics was fabricated. This module has low (4.2 dB) and uniform (0.5 dB) coupling loss.