Universiti Teknologi Malaysia Institutional Repository

Active alignment and reliable pigtailing if laser of diode transmitter

Fadhali, Mohamed and Toto, Saktioto and Zainal, Jasman and Munajat, Yusof and Ali, Jalil and Abdul Rahman, Rosly (2008) Active alignment and reliable pigtailing if laser of diode transmitter. 9th International Symposium on Laser Metrology . p. 1. (Unpublished)

[img]
Preview
PDF
10Kb

Abstract

In this paper we present theoretical and experimental analyses on Nd: YAG laser microwelding for pigtailing laser diode transmitter through two ball lenses that are employed for effectively matching the elliptical mode field of the laser diode with the circular on of the single mode fiber. The fiber attachment and the fixing of various coupling components have been performed in what is so called active alignment process, where the system continues measuring the coupled power during the process of alignment and attachment of various coupling components as well as the working distance and misalignment tolerances optimizations. Results of theoretical modeling of laser weld penetration depth agree with the experimentally measured results in the low laser pulse energy range. Moreover the laser pulse parameters such as, duration, energy, number of pulse shoots as well as the focusing position over the work piece and angle of laser pulse incidents are found to have very significant effects on the weld yields and greatly affect the laser weld depth to width ratio. Optimization of all the mentioned parameters found to be necessary for achieving strong laser microwelds with more penetration and less width in the attachments of the sensitive optical components inside the packaged photonic devices modules. Keywords: Laser Microwelding, photonic devices pigtailing, penetration depth, laser weld aspect ratio, ball lenses.

Item Type:Article
Subjects:Q Science > QC Physics
Divisions:Science
ID Code:5863
Deposited By: Azlin Abd. Jamil
Deposited On:19 Nov 2009 02:39
Last Modified:16 Dec 2010 03:37

Repository Staff Only: item control page