Title :
High sensitive uplink design in WiMAX Radio-over-Fiber PON
Author :
Chinen, Koyu ; Mikamori, Haruka
Author_Institution :
Okinawa Nat. Coll. of Technol., Nago, Japan
Abstract :
A high sensitive and low distortion amplification design was carried out in the uplink of the WiMAX Radio-over-Fiber PON that was configured with a 1:8 splitter and a 30km-SMF. The EDFA gain compensates the optical loss of the optical components and SMF. The gain of the LNA of the PIN-PD is not high so that the LNA output power does not exceed -15dBm. The gain of the LNA of the DFB-LD driver is higher than the difference between the input power and 20dBm. We achieved a low Relative constellation error (RCE) of -25dB at the input modulation power of -60dBm. An estimation of the power diagram to achieve -80dBm sensitivity with 60km SMF was carried out.
Keywords :
WiMax; distributed feedback lasers; low noise amplifiers; optical fibre LAN; p-i-n photodiodes; radio-over-fibre; 1:8 splitter; DFB-LD driver; EDFA gain; LNA; PIN-PD; SMF; WiMAX radio-over-fiber PON; distributed feedback lasers; high sensitive uplink design; low distortion amplification design; low noise amplifiers; optical loss; p-i-n photodiodes; passive optical networks; relative constellation error; single mode fiber; Abstracts; Optical design; Optical modulation; Optical sensors; Optical variables measurement; Passive optical networks; Stimulated emission; EDFA; EPHEMT; LNA; PON; RoF; Uplink; WiMAX;
Conference_Titel :
Communications and Photonics Conference and Exhibition, 2011. ACP. Asia
Conference_Location :
Shanghai
Print_ISBN :
978-0-8194-8961-6
