Title :
Loss equalisation technique using carbon cluster-doped polyimide film and its application to 32-channel optical wavelength selector module
Author :
Yamada, T. ; Ogawa, I. ; Sawada, Tsuyoshi ; Yamada, H. ; Suzaki, Y. ; Magari, K. ; Sugita, A. ; Himeno, A. ; Kato, K.
Author_Institution :
NTT Photonics Labs., Ibaraki, Japan
fDate :
6/8/2000 12:00:00 AM
Abstract :
A novel loss equalisation technique has been developed based on the use of a carbon cluster-doped thin polyimide film which has a flat monotonic absorption coefficient in the 1.55 μm band. The use of this film enables the optical loss of individual channels to be adjusted by changing the film thickness. By inserting this film into a groove formed in a planar lightwave circuit (PLC), the authors have been able to reduce the optical loss deviation in a high-speed optical wavelength selector module to ~1.5 dB
Keywords :
carbon; 1.5 dB; 1.55 mum; 32-channel optical wavelength selector module; C cluster-doped polyimide film; film thickness; flat monotonic absorption coefficient; groove; high-speed optical wavelength selector module; loss equalisation technique; optical loss; optical loss deviation; optical wavelength selector; planar lightwave circuit; thin polyimide film;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20000774
