NDLI: Accuracy and beam pointing stability of surface mounted optical elements

Content Provider	IEEE Xplore Digital Library
Author	de Graffenried, Ch. Andreasch, W. Zbinden, E. Kohler, R. Clavel, R. Sidler, Th. Salathe, R.-P. Gachter, B. Ehbets, H.
Copyright Year	1998
Description	Author affiliation: Dept. de Microtechnique, Ecole Polytech. Federale de Lausanne, Switzerland (de Graffenried, Ch.)
Abstract	Considerable efforts are presently being made in the fabrication of miniaturized optical devices. An automated assembly technique for small optical components based on standardized holders and on-line alignment of the optical elements has been developed. This optical surface mounted devices (O-SMD) technique consists of a flexible 2D arrangement of an universal tripod holder on a planar mounting plate. The compliant structure allows to align the optical elements during the mounting process in all 6 degrees of freedom and to attach them to the mounting plate in a one step procedure by laser point welding. The optical elements are interconnected by free-space propagation of the light. Flexibility, simple handling, high packaging density and low cost make this well established assembly technique suitable to both mass production and rapid prototyping of small optoelectronic devices. However, problems were encountered with the assembly of devices requiring very high angular beam precision adjustments. We report on a new improved version of the tripod holder which allows to considerably improve the beam pointing stability of the tripod holder. This allows to extend the field of applications of this technique to optical systems with more stringent angular specifications such as, e.g., spatial beam combiners and long distance free space optical transmission systems.
Starting Page	103
Ending Page	104
File Size	240631
Page Count	2
File Format	PDF
ISBN	0780349474
DOI	10.1109/LEOS.1998.737754
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-12-01
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Stability Optical devices Assembly Optical interconnections Optical device fabrication Welding Optical propagation Packaging Costs Mass production
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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