This book is an outgrowth of teaching the subject of " Optoelectronics Devices and Instrumentation" to undergraduate students of Instrumentation and Electronics Engineering for the past couple of years consecutively. A strong need was felt to put the syllabus matter in one book in a very systematic, pedagogical manner although a number of excellent books on a very well researched and mature topic like " Optoelectronics and Systems" are available. The book has been written particularly as per the UG syllabus prescribed by the Biju Patnaik University of Technology (BPUT), Odisha. It can serve as a text book for undergraduate students of Instrumentation and Electronics Engineering, Electronics and Telecommunication Engineering and as a reference book for graduate students pursuing a course on optoelectronics elsewhere. To facilitate the learning process for a beginner, emphasis has been given to start from introductory field theory. Some of the salient features of the book are o A formal yet adequate treatment of field theory o A good number of worked out examples o Extensive analysis of step index and graded index fibers o Detailed derivation a number of mathematical equations o Combining of optical fiber based communication systems and instrumentation systems o Compilation of a number of optical fiber based sensors/instrumentation o Coverage of some advanced topics o A good number of references

Aruna Tripathy obtained her Bachelors degree in Engineering in Electronics and Telecommunication from the then University College of Engineering, Burla (now known as Veer Surendra Sai University of Technology, VSSUT) in 1990. Immediately after, she worked in a core telecom company manufacturing telephones and exchanges for about four years. She obtained her Masters degree and Ph.D. from IIT, Kharagpur. She has been in the teaching profession thereafter for nearly twenty three years in various capacities. She has taught UG courses on a number of subjects including the optoelectronics and PG courses on mainly communication related subjects. She has a number of publications in international journals, conferences. Her current interests include various physical layer aspects of wireless communication and optical character recognition.