Title :
Novel optical quaternary minimum shift keying technology with direct modulation of conventional DFB laser and digital coherent detection
Author :
Nakanishi, Y. ; Yamada, E. ; Tanobe, H. ; Yoneyama, M.
Author_Institution :
NTT Photonics Labs., NTT Corp., Atsugi, Japan
Abstract :
We propose an optical quaternary minimum shift keying technology with direct modulation for the first time. Error-free operation is obtained by using a digital coherent demodulator employing 1-bit delay detection and an adaptive FIR filter.
Keywords :
FIR filters; adaptive filters; distributed feedback lasers; minimum shift keying; optical communication; adaptive FIR filter; conventional DFB laser; delay detection; digital coherent demodulator; digital coherent detection; direct modulation; error-free operation; optical quaternary minimum shift keying technology; word length 1 bit; Adaptive optics; Frequency modulation; Optical distortion; Optical filters; Optical modulation; Optical signal processing;
Conference_Titel :
Photonics Conference (IPC), 2012 IEEE
Conference_Location :
Burlingame, CA
Print_ISBN :
978-1-4577-0731-5
DOI :
10.1109/IPCon.2012.6358580
