Wavelength dependent isolator
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United States of America Patent
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Jun 29, 2004
Grant Date -
N/A
app pub date -
Aug 9, 2002
filing date -
Nov 12, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A wavelength dependent optical device comprising: at least two optical Ports (21, 22); a first series of polarisation modifying optical components (23, 25, 27, 28) placed between the two Ports and a first dielectric mirror (29); the first dielectric mirror (29) operating substantially in reflectance mode at a first predetermined wavelength range and substantially in transmission mode at a second predetermined wavelength range; at least one second polarisation modifying optical component (30) placed between the first dielectric mirror (29) and a second mirror (31); the second mirror (31) operating substantially in reflectance mode at the second predetermined wavelength range; wherein light emitted from the first Port (21) at the first predetermined wavelength range is transmitted to the second Port (22), and light emitted from the first Port (21) at the second predetermined wavelength range is transmitted away from the second Port (22).
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