Appeal No. 96-3896
Application No. 08/152,315
DECISION ON APPEAL
This appeal is from the final rejection of claims 6
and 8, all the claims pending in the application.
Claim 6 defines an optical multiplexer and claim 8
defines an optical demultiplexer. Claims 6 and 8 read as
follows:
An optical multiplexer for multiplexing optical
signals having different wavelengths comprising:
an optical circulator having at least three
circulator ports (1, 2, 3) for circulating optical signals
from one port to the next port in a circulating direction;
means for coupling a first optical signal at a first
wavelength (ë ) to a first of said circulator ports (1);
j
an in-fiber Bragg grating reflector for reflecting
substantially only said first optical signal at said first
wavelength (ë );
j
means for coupling said in-fiber Bragg grating
reflector to a second of said circulator ports (2) which is
the next circulator port in the circulating direction from
said first circulator port (1) for reflecting said first
optical signal at said first wavelength (ë ) back to said
j
second circulator port (2);
means for coupling a multiplexed optical signal ëk,
the multiplexed signal ë comprising a group of optical
k
signals, each at a different wavelength, wherein the
2
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