Title :
8-channel tunable drop device with thermal tuning for 100 GHz channel spacing
Author :
Eftimov, T. ; Farries, M.C. ; Huang, S. ; Duricic, N. ; Grobnic, D. ; Keyworth, B. ; Obhi, J.S.
Author_Institution :
IDS FITEL Inc., Nepean, Ont., Canada
Abstract :
An 8-channel tunable drop module based on efficient thermal tuning of fiber Bragg gratings is reported. The drop module is designed for 100 GHz (0.8 nm) channel spacing in the 1550 nm telecom window. Wavelength shifts of 0.4 nm corresponding to half a channel spacing, and broadening of the transmission spectrum to >0.25 nm at the 25 dB level were achieved through thermal gradients. Isolation at the adjacent channel center was >25 dB. Over the adjacent channel passband isolation was >22 dB
Keywords :
Bragg gratings; chirp modulation; modules; optical communication equipment; optical fibre communication; optical modulation; optical tuning; 100 GHz; 1550 nm; 1550 nm telecom window; 8-channel tunable drop device; 8-channel tunable drop module; GHz channel spacing; adjacent channel center; adjacent channel passband isolation; channel spacing; drop module; efficient thermal tuning; fiber Bragg gratings; thermal gradients; thermal tuning; transmission spectrum broadening; wavelength shifts; Bandwidth; Bragg gratings; Channel spacing; Chirp; Circulators; Fiber gratings; Optical add-drop multiplexers; Optical fiber couplers; Optical fiber polarization; Temperature;
Conference_Titel :
Optical Communication, 1998. 24th European Conference on
Conference_Location :
Madrid
Print_ISBN :
84-89900-14-0
DOI :
10.1109/ECOC.1998.732467
