caa a22 4500 606243887 CHVBK 20210128101327.0 cr unu---uuuuu 210128e20150901xx s 000 0 eng 10.1007/s12596-015-0248-7 doi (NATIONALLICENCE)springer-10.1007/s12596-015-0248-7 Communication performance of free space optical link using wavelength diversity in strong atmospheric turbulence [Elektronische Daten] [Anil Kshatriya, Y. Acharya, A. Aggarwal, A. Majumdar] Atmospheric turbulence can be considered as one of the main problems facing FSO communication systems, which degrades the performance in terms of bit error rate. The objective of this paper is to examine the use of wavelength diversity in free-space optics to mitigate the effect of turbulence on the received optical signal. As the refractive index variation will be different for different wavelengths, the fading is not same for different wavelength and different paths at the same time. The signals traveling through turbulent atmosphere undergo different amount of intensity fluctuations. The effect of atmospheric turbulence and scintillation cause intensity fluctuation of optical beam thus increasing the bit error rate (BER). In this paper wavelength diversity technique is proposed to reduce the fading under strong atmospheric turbulence condition. Mathematical expressions are derived for the estimation of the outage probability under strong atmospheric turbulence conditions and considerable improvement is found using wavelength diversity. The Optical Society of India, 2015 Free Space optical communication (FSO) nationallicence Bit Error Rate (BER),Wavelength diversity nationallicence Turbulence nationallicence Kshatriya Anil Department of Electronics & Communication, Vishwakarma Government Engineering College, Chandkheda, Ahmedabad, Gujarat, India aut Acharya Y. Physical Research Laboratory, Ahmedabad, Gujarat, India aut Aggarwal A. Gujarat Technological University, Ahmedabad, Gujarat, India aut Majumdar A. 93555, Ridgecrest, CA, USA aut Journal of Optics Springer India 44/3(2015-09-01), 215-219 0972-8821 44:3<215 2015 44 12596 https://doi.org/10.1007/s12596-015-0248-7 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s12596-015-0248-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kshatriya Anil Department of Electronics & Communication, Vishwakarma Government Engineering College, Chandkheda, Ahmedabad, Gujarat, India aut NATIONALLICENCE 700 1- Acharya Y. Physical Research Laboratory, Ahmedabad, Gujarat, India aut NATIONALLICENCE 700 1- Aggarwal A. Gujarat Technological University, Ahmedabad, Gujarat, India aut NATIONALLICENCE 700 1- Majumdar A. 93555, Ridgecrest, CA, USA aut NATIONALLICENCE 773 0- Journal of Optics Springer India 44/3(2015-09-01), 215-219 0972-8821 44:3<215 2015 44 12596