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Pub. No.:    WO/2001/001585    International Application No.:    PCT/US2000/016365
Publication Date: Fri Jan 05 00:59:59 CET 2001 International Filing Date: Wed Jun 14 01:59:59 CEST 2000
IPC: G02B 6/12
G02B 6/34
H04J 14/02
Applicants: E-TEK DYNAMICS, INC.
CHEN, Jye-Hong
TAI, Kuochou
Inventors: CHEN, Jye-Hong
TAI, Kuochou
An interleaver and a deinterleaver for filtering optical signals are described. The interleaver separates subsets of channels. The deinterleavers mix subsets of channels. Interleavers and deinterleavers can be used to increase the bandwidth of an optical network. The interleavers and deinterleavers can be used to interface components designed for a first channel spacing to components designed for a second channel spacing. An optical fiber (305) receives an optical signal, collimator (310) collimates the optical signal, a beam splitter splits the beam into a first and second sub-beam, the first sub-beam is reflected by cube interface (322) to etalon (360), which includes a reflecting surface (360), the second sub-beam is reflected off back surface (324), the two sub-beams are then reflected to a collimater (350), the combined signal, which can have either construcive or destructive light interference, is then carried by optical fiber (355).