TKK Dissertations 36 Espoo 2006
OPTICAL POWER MEASUREMENTS: APPLICATIONS IN FIBER OPTICS AND ULTRAVIOLET RADIOMETRY Doctoral Dissertation Jouni Envall
Helsinki University of Technology Department of Electrical and Communications Engineering Metrology Research Institute
TKK Dissertations 36 Espoo 2006
OPTICAL POWER MEASUREMENTS: APPLICATIONS IN FIBER OPTICS AND ULTRAVIOLET RADIOMETRY Doctoral Dissertation Jouni Envall
Dissertation for the degree of Doctor of Science in Technology to be presented with due permission of the Department of Electrical and Communications Engineering for public examination and debate in Auditorium S5 at Helsinki University of Technology (Espoo, Finland) on the 30th of June, 2006, at 12 noon.
Helsinki University of Technology Department of Electrical and Communications Engineering Metrology Research Institute Teknillinen korkeakoulu Sähkö- ja tietoliikennetekniikan osasto MIKES TKK Mittaustekniikka
Distribution: Helsinki University of Technology Department of Electrical and Communications Engineering Metrology Research Institute P.O.Box 3000 FI - 02015 TKK FINLAND URL: http://metrology.tkk.fi/ Tel. +358-9-451 2288 Fax. +358-9-451 2222 E-mail:
[email protected] © 2006 Jouni Envall ISBN 951-22-8264-X ISBN 951-22-8265-8 (PDF) ISSN 1795-2239 ISSN 1795-4584 (PDF) URL: http://lib.tkk.fi/Diss/2006/isbn9512282658/ TKK-DISS-2155 Otamedia Oy Espoo 2006
AB HELSINKI UNIVERSITY OF TECHNOLOGY
ABSTRACT OF DOCTORAL DISSERTATION
P. O. BOX 1000, FI-02015 TKK http://www.tkk.fi Author
Jouni Tapani Envall
Name of the dissertation Optical Power Measurements: Applications in Fiber Optics and Ultraviolet Radiometry
Date of manuscript
18.4.2006
Monograph Department Laboratory Field of research Opponent(s) Supervisor (Instructor)
Date of the dissertation
30.6.2006
Article dissertation (summary + original articles) Electrical and Communications Engineering Metrology Research Institute Measurement Science and Technology Prof. Mario Blumthaler Prof. Erkki Ikonen Dr. Petri Kärhä
Abstract The work described in this thesis has concentrated on development and characterization of detectors, measurement setups and measurement methods for the needs of optical metrology in the fields of fiber optics and ultraviolet (UV) radiometry. A straightforward detector design for fiber optic power measurements, consisting of a single InGaAs photodiode, has been introduced. The simple and cost effective detectors were found applicable in high-precision measurements at
