A single to multi-wavelength converter using Fabry–Perot laser diode with linear optical amplifier and its applications to the wavelength division multiplexing-passive optical network system

2005 ◽  
Vol 254 (4-6) ◽  
pp. 223-235 ◽  
Author(s):  
Jeung-Mo Kang ◽  
Hyuk-choon Kwon ◽  
Sang-Hoon Lee ◽  
Sang-Kook Han
2014 ◽  
Vol 2014 ◽  
pp. 1-7
Author(s):  
M. S. Salleh ◽  
A. S. M. Supa’at ◽  
S. M. Idrus ◽  
S. Yaakob ◽  
Z. M. Yusof

We propose a new architecture of dynamic time-wavelength division multiplexing-passive optical network (TWDM-PON) system that employs integrated all-optical packet routing (AOPR) module using4λ×10 Gbps downstream signal to support 20 km fiber transmission. This module has been designed to support high speed L2 aggregation and routing in the physical layer PON system by using multicasting cross-gain modulation (XGM) to route packet from any PON port to multiple PON links. Meanwhile, the fixed wavelength optical line terminal (OLT) transmitter with wavelength tuning free features has been designed to integrate with the semiconductor optical amplifier (SOA) and passive arrayed waveguide grating (AWG). By implementing hybrid multicasting and multiplexing, the system has been able to support a PON system with full flexibility function for managing highly efficient dynamic bandwidth allocation to support the4λ×10 Gb/s TWDM-PON system used to connect 4 different PON links using fixed wavelength OLT transceivers with maximum 38 dB link loss.


2004 ◽  
Vol 43 (9A) ◽  
pp. 6125-6128
Author(s):  
Jeung-Mo Kang ◽  
Yong Ook Kim ◽  
Sang-Kook Han ◽  
Seok Lee

2018 ◽  
Vol 39 (4) ◽  
pp. 393-400 ◽  
Author(s):  
Meenakshi Chakraborty ◽  
Taraprasad Chattopadhyay

Abstract This paper reports an interesting phenomenon of optical modulation enhancement produced by CW optical sideband injection locking of a directly modulated Fabry-Perot Laser Diode (FPLD) lasing at 1557.1 nm wavelength, the modulation being sinusoidal in nature and effected at 300 kHz and 3 MHz. This investigation is carried out for direct modulation of the FPLD effected in the RF region at 300 kHz and 3 MHz in contradistinction to earlier studies being conducted with the modulation in the microwave frequency band. A nonlinear analysis has been carried out which corroborates experimental observation on modulation enhancement. At low level of optical Intensity Modulation (IM) index, not exceeding 20 %, typical modulation enhancement of 2 % at 300 kHz and 11 % at 3 MHz modulation frequency have been observed. Larger modulation enhancement is expected at higher values of IM indices of the slave FPLD and for medium to high power laser diodes. This circuit can have direct application in Wavelength Division Multiplexed-Passive Optical Network (WDM-PON).


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