Title :
Receiver sensitivity improvement by impulsive coding
Author :
Boivin, L. ; Nuss, M.C. ; Shah, J. ; Miller, D.A.B. ; Haus, H.A.
Author_Institution :
AT&T Bell Lab., Crawford Hill Lab., Holmdel, NJ, USA
fDate :
5/1/1997 12:00:00 AM
Abstract :
We show that optical receivers operated impulsively are more sensitive than for nonreturn-to-zero (NRZ) operation. Impulsive sensitivity improvements of 5.8 and 4.7 dB are measured for two pin-FET receivers using a modelocked laser transmitter, and compared to theoretical expressions for the NRZ and impulsive Q-factors. We also show that the optimum detection bandwidth for impulsive coding is larger than for NRZ, in contrast to previous models.
Keywords :
Q-factor; field effect integrated circuits; integrated optoelectronics; optical receivers; sensitivity; NRZ operation; impulsive Q-factors; impulsive coding; modelocked laser transmitter; nonreturn-to-zero operation; optical receivers; optimum detection bandwidth; pin-FET receivers; receiver sensitivity improvement; Bandwidth; Capacitance; Equivalent circuits; Laser modes; Laser theory; Optical pulses; Optical receivers; Optical signal processing; Pulse shaping methods; Q factor;
Journal_Title :
Photonics Technology Letters, IEEE
