EFEK PIN HOLE UNTUK MENEKAN EFEK MULTILENSA PADA KOMUNIKASI FREE SPACE OPTICS

Authors

  • Tri Nopiani Damayanti
  • Purnomo Sidi Priambodo

DOI:

https://doi.org/10.25124/jett.v1i1.82

Abstract

Teknologi FSOC pada jaringan teresterial memanfaatkan media atmosfer yang sangat terpengaruh kondisi cuaca sebagai media propagasi informasi sinyal optik. Pengaruh kondisi cuaca ini menyebabkan media atmosfer mengalami turbulens. Akibat turbulens atmosfer, teknologi FSOC dihadapkan oleh tantangan terbesar dimana salah satunya terjadi efek multi lensa akibat gradient temperature di atmosfer yang menyebabkan sinar meleset dari titik penerima.
Gangguan yang terjadi pada FSOC bersifat random dan fluktuatif dalam domain spasial dan waktu sehingga dilakukan pendekatan secara statistik untuk menganalisa gelombang yang dipropagasikan pada sistem FSOC. Pengujian eksperimen penelitian melalui pendekatan dengan teknik SISO FSOC (Single-input single output) dengan menggunakan laser He-Ne pada panjang gelombang 632 nm. Sistem dirancang dengan menggunakan pin hole di receiver FSOC dimana pada eksperimen ini terjadi peningkatan nilai SNR sebesar 7.3443 dB saat sistem diuji menggunakan pin hole 10 μm.

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Published

2016-07-26

Issue

Vol. 1 No. 1: JETT Desember (2014)

Section

Articles

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