Compact wavelength filter integrated to a single-mode...

Details Compact wavelength filter integrated to a single-mode... Compact wavelength filter integrated to a single-mode...

G - Physics

02

B

88/114, 88/0.13,

G02B 6/02 (2006.01) G02B 5/20 (2006.01) G02B 5/26 (2006.01) G02B 6/255 (2006.01) G02B 6/34 (2006.01)

Patent

CA 1317495

ABSTRACT OF THE DISCLOSURE A wavelength filter is integrated to a single-mode optical fiber capable of propagating a light signal and comprising a longitudinal and opaque outer jacket enveloping the fiber. This fiber is stripped of its jacket on a given length thereof to obtain a non-jacketed length of optical fiber. The so produced non-jacketed fiber length is formed with first and second concatenated biconical tapers separated from each other by a given distance and each having a given profile. By appropriately selecting the distance separating the two tapers and the given profile thereof, the filter will enable transmission of a first, predetermined wavelength of the propagated light signal while it will stop a second, predetermined wavelength of the signal. A method of integrating such a filter to a single-mode optical fiber is also proposed.

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