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Fiber loss is a fundamental limitation in realising long haul point-to-point fiber optical communication links and optical networks. One of the advanced technologies achieved in recent years is the advent of erbium doped fiber amplifiers (EDFAs) that has enabled the optical signals in an optical fiber to be amplified directly in high bit rate systems beyond(More)
Measurement of refractive index which is one of the distinctive properties of materials is commonly used in many fields such as quality control of food industry, biomedical applications, biochemical analysis and measurement of environmental pollution. From the refractive index measurement methods, the one based on fiber optic stands out with their provided(More)
In this study, the design and experimental characterisation of a bidirectionally pumped double-pass L-band EDFA is realized. First, the performance parameters of the double-pass L-band EDFA design are theoretically analyzed using Optiamplifier 4.0 simulation program. Then, it is realised experimentally and, its gain and noise figure performances are(More)
In this study, it is shown that an L-band optical signal can be ail-optically switched in an L-band loop EDFA using a C band control signal. In an L-band EDFA designed using loop configuration, a significant improvement can be achieved in gain and NF performance. Optical and electrical performance of the all-optical switching system realized is within the(More)
Özetçe 980 nm ve 1480 nm'de ileri, geri ve çift yönlü pompalanmış uzun dalgaboyu bandı (L-Bandı) erbiyum katkılı fiber amplifikatörlerin spektral kazanç ve gürültü faktörü karakteristikleri, farklı uzunluklarda erbiyum katkılı fiberler için kıyaslanmıştır. Gerçekleştirilen simülasyonlar, L-Bandı EDFA'nın kullanılabilir kazanç bandgenişliği ve spektral(More)
Özetçe Bu çalışmada 980 nm' de çift yönlü pompalanan yüksek performanslı bir L-band EDFA tasarımı yapılmış ve deneysel olarak gerçeklenmiştir. Gerçeklenen L-EDFA'ya 1550nm' de bir prob sinyali enjekte edilerek, EDFA' da üretilen ve kullanılmayan geri yönlü ASE sinyali faydalı C-bandı pompalama sinyaline dönüştürülmekte ve bu sayede yüksek kazanç (~18 dB) ve(More)
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