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p>The optical communications had an exponential growth over the last few years, having a significant commercial market in optical systems and components. This growth has been extended across all application areas, from transcontinental and transoceanic distances to regional networks and lastly to campus and building wiring. This paper basically exp...
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Citations
... Optical fiber links comprise the best solution for implementing multimedia networks for fixed user locations. The development of manufacturing technology for detectors and light sources has attracted considerable attention, as they are key to the development of optical communication systems [13][14][15][16][17][18][19]. The use of fiber to implement local area networks (LANs) has increased. ...
p> This study has presented a spatial optical transmitter based on on off keying line coding modulation scheme for the optimum performance of telecommunication systems. The encircled flux versus fiber core radius, the 3D graph for fiber mode versus core radius, and the signal power level in dBm versus wavelength through coarse wavelength division multiplexing with a fiber length of 20 km are presented and discussed in detail. The total power measured in W and dBm as well as the signal power amplitude level obtained through the infinite impulse response (IIR) filter based on both Z domain and pole/zero coefficient filter types are illustrated clearly. Signal gain, noise figure, maximum Q factor, and received power are also clarified against bit rates for various modulation line coding schemes. </p
... Equalization can significantly help increase the overall communication bandwidth over copper channels with a severe frequency-dependent loss [1][2][3][4][5]. As the communication distance grows while the bandwidth requirement keeps scaling [6][7][8], equalized channels exceed the power envelope and become inadequate for delivering the required data in a power-efficient manner [9][10][11][12][13]. The optical transmitter and receiver electronics' power consumption and area can limit the number of possible on-chip interconnections. ...
p> This study shows hybrid continuous-phase frequency shift keying (CPFSK)/optical quadrature-phase shift keying (OQPSK) modulation transmission techniques’ performance efficiency with return-to-zero (RZ) line coding scheme–based fiber systems in passive optical networks. Max. Q factor/min. bit error rate variations versus modulation frequency and fiber length are studied in detail for various bits/symbol, based on hybrid proposed modulation transmission techniques. Also, optical power and received electrical power variations are simulated with fiber-length variations at a specified modulation frequency of 300 GHz. Max. Q Factor, min. BER, max. signal power, and min. noise power variations are based on hybrid modulation techniques for CPFSK/OQPSK of 32 bits/symbol and a modulation frequency of 500 GHz through a fiber length of 30 km. </p
... Equalization can significantly help increase the overall communication bandwidth over copper channels with a severe frequency-dependent loss [1][2][3][4][5]. As the communication distance grows while the bandwidth requirement keeps scaling [6][7][8], equalized channels exceed the power envelope and become inadequate for delivering the required data in a power-efficient manner [9][10][11][12][13]. The optical transmitter and receiver electronics' power consumption and area can limit the number of possible on-chip interconnections. ...
This study shows hybrid continuous-phase frequency shift keying (CPFSK)/optical quadrature-phase shift keying (OQPSK) modulation transmission techniques’ performance efficiency with return-to-zero (RZ) line coding scheme–based fiber systems in passive optical networks. Max. Q factor/min. bit error rate variations versus modulation frequency and fiber length are studied in detail for various bits/symbol, based on hybrid proposed modulation transmission techniques. Also, optical power and received electrical power variations are simulated with fiber-length variations at a specified modulation frequency of 300 GHz. Max. Q Factor, min. BER, max. signal power, and min. noise power variations are based on hybrid modulation techniques for CPFSK/OQPSK of 32 bits/symbol and a modulation frequency of 500 GHz through a fiber length of 30 km.
... Permasalahan seperti ini juga mempunyai hubungan dengan perencanaan sistem instalasi komunikasi kabel serat optik ketika sistem tersebut mengalami gangguan disepanjang kabel serat optic [7] [8]. Rugi daya yang ditimbulkan dengan melengkungkan serat optik kemungkinan akan lebih besar dari rugi daya total yang timbul pada seluruh kabel serat optik di sepanjang jalur [9]. ...
Pada penelitian ini telah dilakukan analisis Rugi-rugi redaman yang dipengaruhi oleh lengkungan dengan beberapa variasi jari-jari lengkungan pada sistem komunikasi serat optic di jaringan FTTH. Ada tiga titik kabel serat optik yang akan diukur dengan jenis Single Mode Step Index pada panjang gelombang 1310 nm. Alat bantu yang digunakan adalah Optical Time Domain Reflectometer (OTDR) tipe ANRITSU. Data dari pengukuran akan dibandingkan dengan data dari analisis perhitungan guna mencari nilai daya terima. Metode yang digunakan adalah power link budget dan power loss fiber. Dari hasil penelitian ini didapatkan bahwa saat jari-jari sebesar 0.3 cm dihasilkan nilai Rugi-rugi sebesar 13.6921 dB, sehingga nilai daya transmisi sebesar 60 dB berkurang menjadi 46.3079 dB. Besar nilai jari-jari lengkungan berbanding terbalik dengan nilai Rugi-rugi redaman. Namun berbanding lurus dengan nilai daya terima. Adanya variasi jari-jari lengkungan dengan sudut lengkungan rata-rata 75.730 yang masih layak terhadap sudut kritis 45.280dan panjang serat optik dapat mempengaruhi besar kecilnya nilai Rugi-rugi yang akan dihasilkan serta daya terima pada sistem dengan rata-rata presentase error persen tidak melebihi 1%.
