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1.25–2.5 Gb/s simple nyquist transmitters for coherent UDWDM-PON with enhanced spectral efficiency

Identificadors del recurs

Velasquez, J., Tabares, J., Cano, I., Prat, J. 1.25–2.5 Gb/s simple nyquist transmitters for coherent UDWDM-PON with enhanced spectral efficiency. "Fiber and integrated optics", 19 Abril 2018, vol. 37, núm. 4, p. 219-228.

0146-8030

https://hdl.handle.net/2117/121476

10.1080/01468030.2018.1461281

Procedència

(Universitat Politècnica de Catalunya. UPCommons - Recerca)

Fitxa

Títol:: 1.25–2.5 Gb/s simple nyquist transmitters for coherent UDWDM-PON with enhanced spectral efficiency
Matèria:: Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica; Àrees temàtiques de la UPC::Enginyeria electrònica::Optoelectrònica::Làser; Wavelength division multiplexing; Laser communication systems; Beat phase modulation; Coherent detection; DFB; Directly modulated laser (DML); Nyquist shaping; UDWDM-PON; Multiplexatge per divisió de freqüència; Sistemes de comunicació per làser
Descripció:: We present a coherent ultra-dense wavelength division multiplexing passive optical network (UDWDM-PON) with enhanced spectral efficiency. The benefit of using Gaussian or Nyquist pulse-shaping filters at the transmitter is evaluated through numerical simulations and experiments. The transmitters consist of directly phase modulated distributed feedback (DFB) lasers through beat signals whose duty-cycle and amplitude are digitally adjusted. The results show that transmitting a Nyquist-shaped signal achieves a 25% spectral saving allowing to place 2.5 Gb/s/user data in 6.25 GHz channels. Furthermore, the proposed transmitter tolerates differential link-losses of 15 dB at Rx sensitivity of ¿44 dBm at BER=10¿3 with intradyne detection.; Peer Reviewed; Postprint (author's final draft)
Idioma:: English
Relació:: https://www.tandfonline.com/doi/abs/10.1080/01468030.2018.1461281
Autor/Productor:: Velásquez Micolta, Juan Camilo; Tabares Giraldo, Jeison; Cano Valadez, Iván Nicolás; Prat Gomà, Josep Joan
Altres col·laboradors/productors:: Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. GCO - Grup de Comunicacions Òptiques
Drets:: Open Access
Data:: 2018-04-19
Tipus de recurs:: Article
Format:: 10 p.; application/pdf

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1. < dc:title > 1.25–2.5 Gb/s simple nyquist transmitters for coherent UDWDM-PON with enhanced spectral efficiency </ dc:title >
2. < dc:creator > Velásquez Micolta, Juan Camilo </ dc:creator >
3. < dc:creator > Tabares Giraldo, Jeison </ dc:creator >
4. < dc:creator > Cano Valadez, Iván Nicolás </ dc:creator >
5. < dc:creator > Prat Gomà, Josep Joan </ dc:creator >
6. < dc:contributor > Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions </ dc:contributor >
7. < dc:contributor > Universitat Politècnica de Catalunya. GCO - Grup de Comunicacions Òptiques </ dc:contributor >
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9. < dc:subject > Àrees temàtiques de la UPC::Enginyeria electrònica::Optoelectrònica::Làser </ dc:subject >
10. < dc:subject > Wavelength division multiplexing </ dc:subject >
11. < dc:subject > Laser communication systems </ dc:subject >
12. < dc:subject > Beat phase modulation </ dc:subject >
13. < dc:subject > Coherent detection </ dc:subject >
14. < dc:subject > DFB </ dc:subject >
15. < dc:subject > Directly modulated laser (DML) </ dc:subject >
16. < dc:subject > Nyquist shaping </ dc:subject >
17. < dc:subject > UDWDM-PON </ dc:subject >
18. < dc:subject > Multiplexatge per divisió de freqüència </ dc:subject >
19. < dc:subject > Sistemes de comunicació per làser </ dc:subject >
20. < dc:description > We present a coherent ultra-dense wavelength division multiplexing passive optical network (UDWDM-PON) with enhanced spectral efficiency. The benefit of using Gaussian or Nyquist pulse-shaping filters at the transmitter is evaluated through numerical simulations and experiments. The transmitters consist of directly phase modulated distributed feedback (DFB) lasers through beat signals whose duty-cycle and amplitude are digitally adjusted. The results show that transmitting a Nyquist-shaped signal achieves a 25% spectral saving allowing to place 2.5 Gb/s/user data in 6.25 GHz channels. Furthermore, the proposed transmitter tolerates differential link-losses of 15 dB at Rx sensitivity of ¿44 dBm at BER=10¿3 with intradyne detection. </ dc:description >
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