Low‐pass impedance matching filters for packaged low‐cost laser diodes

A simple, cost-effective, and compact passive matching network, in the form of a low-pass filter, is developed for impedance matching of a commercially packaged laser diode with an optical connector. More than 15-dB matching improvement is achieved at 1.8-GHz frequency by using a small size (10.8 × 9.1 mm) three-pole lumped element low-pass LC filter. © 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 37: 194–196, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10865