EP 1088248 A1 20010404 - DUAL TRANSMISSION BAND INTERFERENCE FILTER
Title (en)
DUAL TRANSMISSION BAND INTERFERENCE FILTER
Title (de)
DOPPELUEBERTRAGUNGSBAND-INTERFERENZFILTER
Title (fr)
FILTRE D'INTERFERENCE A BANDE DE TRANSMISSION DOUBLE
Publication
Application
Priority
- US 0010072 W 20000417
- US 13021299 P 19990420
Abstract (en)
[origin: WO0063728A1] A dual-band optical filter is disclosed which has two transmission bands. The first band is relatively narrow (about 1 nm) and encompases a wavelength of about 1550 nm, while the second band is relatively broad (greater than 50 nm) to transmit wavelengths in a range of 1300-1400 nm. Accordingly, the filter can be used in wavelength division multiplexed communication systems to simultaneously select a payload channel having a wavelength of approximately 1550 nm, and a 1310 nm service channel.
IPC 1-7
IPC 8 full level
G02B 5/28 (2006.01)
CPC (source: EP)
G02B 5/281 (2013.01); G02B 5/288 (2013.01)
Citation (search report)
See references of WO 0063728A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 0063728 A1 20001026; WO 0063728 A9 20020613; CA 2337223 A1 20001026; EP 1088248 A1 20010404
DOCDB simple family (application)
US 0010072 W 20000417; CA 2337223 A 20000417; EP 00926004 A 20000417