Title :
Tunable silicon etalon for simultaneous spectral filtering and wavelength monitoring of a DWDM transmitter
Author :
Niemi, Tapio ; Uusimaa, Maria ; Tammela, Simo ; Heimala, Päivi ; Kajava, Timo ; Kaivola, Matti ; Ludvigsen, Hanne
Author_Institution :
Metrol. Res. Inst., Helsinki Univ. of Technol., Espoo, Finland
Abstract :
A temperature-tunable Fabry-Perot filter made of silicon has been developed and applied for simultaneous spectral filtering and wavelength monitoring of a directly modulated DFB laser. This novel device decreases the dispersion penalty of a cost-effective dense wavelength-division-multiplexing (DWDM) transmitter in a long-haul transmission link. Moreover, it allows the operating wavelength of the transmitter to be accurately monitored in real time.
Keywords :
Fabry-Perot interferometers; distributed feedback lasers; optical fibre networks; optical filters; optical transmitters; silicon; wavelength division multiplexing; DWDM transmitter; Si; cost-effective dense wavelength-division-multiplexing transmitter; directly modulated DFB laser; dispersion penalty; long-haul transmission link; operating wavelength; spectral filtering; temperature-tunable Fabry-Perot filter; tunable silicon etalon; wavelength monitoring; Fiber lasers; Filtering; Monitoring; Optical fiber filters; Optical filters; Optical pulses; Optical transmitters; Silicon; Tunable circuits and devices; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
