A wavalength selectable wdm source using a fiber sagnac loop filter

Download

index.pdf

Date

2006

Author

Ergül, Özgür

Metadata

Show full item record

Item Usage Stats

232
views

65
downloads

The demand for faster data transmission has been increasing since the wide acceptance of the Internet. To meet this ever increasing demand, optical communication systems use Wavelength Division Multiplexing (WDM) to transport more information per fiber by utilizing multiple wavelength channels. Multi-wavelength laser sources are one of the most important components of such WDM systems. In this thesis a multi-wavelength laser source is proposed. A fiber Sagnac loop filter is used to produce a grid pattern with peaks at a certain set of wavelengths. Then any desired channel is chosen from the grid by using an adjustable Fiber Bragg Grating.

Subject Keywords

Telecommunication (including telegraphy, telephone, radio, radar, television).

URI

http://etd.lib.metu.edu.tr/upload/12607666/index.pdf
https://hdl.handle.net/11511/15944

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

Scheduling algorithms for wireless cdma networks Hakyemez, Serkan Ender; Schmidt, Şenan Ece; Department of Electrical and Electronics Engineering (2007) In recent years the need for multimedia packet data services in wireless networks has grown rapidly. To overcome that need third generation (3G) mobile services have been proposed. The fast growing demands multimedia services in 3G services brought the need for higher capacity. As a result of this, the improvement on throughput, traffic serving performance has become necessary in 3G systems. Code division multiple access (CDMA) technique is one of the most important 3G wireless mobile techniques that has be...
Channel phase and data estimation in slowly fading frequency nonselective channels Zeydan, Engin; Demirbaş, Kerim; Department of Electrical and Electronics Engineering (2006) In coherent receivers, the effect of the multipath fading channel on the transmitted signal must be estimated to recover the transmitted data. In this thesis, the channel phase and data estimation problems are investigated in a transmitted data sequence when the channel is modeled as slowly fading, frequency non-selective channel. Channel phase estimation in a transmitted data sequence is investigated and data estimation is obtained in a symbol-by-symbol MAP receiver that is designed for minimum symbol erro...
Implementation of a digital signal synthesizer with high spurious free dynamic range Kılıç, Argun; Yılmaz, Ali Özgür; Department of Electrical and Electronics Engineering (2006) Today’s analog modulators and upconverters are inadequate to synthesize and modulate signals with high ‘Spurious Free Dynamic Range’ (SFDR). Thus, the main objective of this thesis is to design and implement a ‘Digital Signal Synthesizer’ (DSS) that is capable of synthesizing signals between 50-100 MHz with 60dB SFDR and to modulate them variable symbol rates and modulation techniques with very high phase/frequency resolution and switching speed while keeping the amplitude modulation occurring during a modu...
Quantization index modulation based watermarking using digital holography Okman, Osman Erman; Akar, Gözde; Department of Electrical and Electronics Engineering (2006) The multimedia watermarking techniques are evolved very quickly in the last years with the increase in the use of internet. The evolution of the internet makes the copyright issues very important and many different approaches are appeared to protect the digital content. On the other hand, holography is the method to store the 3-D information of an object but it is very applicable to use as a watermark because of the nature of the holographic data. The 3-D object can be reconstructed from the hologram even i...
Reliable real-time video communication in wireless sensor networks Ayran, Orhan; Akan, Özgür Barış; Department of Electrical and Electronics Engineering (2007) Many wireless sensor network (WSN) applications require efficient multimedia communication capabilities. However, the existing communication protocols in the literature mainly aim to achieve energy efficiency and reliability objectives and do not address the multimedia communication challenges in WSN. In this thesis, comprehensive performance evaluation of the existing transport protocols is performed and it has been shown that the existing proposals achieve very poor performance in terms of large set of me...

Citation Formats

Ö. Ergül, “A wavalength selectable wdm source using a fiber sagnac loop filter,” M.S. - Master of Science, Middle East Technical University, 2006.