NDLI: A novel fiber alignment shift measurement technique employing an ultra high precision laser displacement meter in laser-welded laser module packaging

Content Provider	IEEE Xplore Digital Library
Author	Yi-Cheng Hsu Yue-Lin He Maw-Tyan Sheen Ying-Chien Tsai Jao-Hwa Kuang Wood-Hi Cheng
Copyright Year	2004
Description	Author affiliation: Inst. of Electro-Opt. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan (Yi-Cheng Hsu; Yue-Lin He; Maw-Tyan Sheen; Ying-Chien Tsai; Jao-Hwa Kuang; Wood-Hi Cheng)
Abstract	A novel measurement technique employing an ultra high precision laser displacement meter (LDM) with a 20 nm resolution for probing the post-weld-shift (PWS) induced fiber alignment shifts in laser-welded laser module packaging is presented. The results show that the direction and magnitude of the fiber alignment shifts induced by PWS in laser-welded laser module packaging can be determined and measured in real time by four parameters: lateral shift(r), position angle (/spl alpha/), swing angle(/spl theta/), and tilt angle(/spl psi/). This suggests that the PWS induced fiber alignment shifts may be corrected as long as the PWS direction and magnitude are determined. Therefore, the LDM technique can be used as an important tool for quantitative analyzing the effect of PWS on the fiber alignment shifts in laser-welded laser module packaging, and a reliable laser module with high yield and high performance for use in low-cost lightwave transmission systems can be developed and fabricated.
Starting Page	1903
Ending Page	1908
File Size	351779
Page Count	6
File Format	PDF
ISBN	0780383656
DOI	10.1109/ECTC.2004.1320381
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-06-04
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fiber lasers Measurement techniques Packaging Welding Lasers and electrooptics Laser theory Optical materials Optical design Coaxial components Joining materials
Content Type	Text
Resource Type	Article

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