US 6,587,266 B2Granted

Bi-directional isolator

AssigneeJDS Uniphase Corporation

InventorsKuochou Tai, Kok-Wai Chang, Jyehong Chen, Thomas Ducellier, Yihao Cheng

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Abstract

Bi-directional wavelength interleaving optical isolators provide the ability to pass a first set of optical signals (e.g., ITU even channels) from a first port to a second port, while preventing a second set of optical signals from passing thereto. The bi-directional wavelength interleaving optical isolators also pass the second set of optical signals (e.g., ITU odd channels) from the second port to the first port, while preventing the first set of optical signals from passing thereto. Thus, the bi-directional wavelength interleaving optical isolator can provide bi-directional communications by passing a first set of signals in a first direction and a second set of signals in a second direction.

Claims20

Dependent claims

A bi-directional isolator comprising:

a first port for launching a first optical signal comprising at least one wavelength channel from a first set of wavelength channels, and for outputting a second optical signal comprising at least one wavelength channel from a second set of wavelength channels, independent of the first set of wavelength channels;
a second port for launching the second optical signal, and for outputting the first optical signal;
first routing means for directing the first optical signal from the first port to the second port, while preventing signals comprising at least one wavelength channel from the second set of wavelength channels from passing thereto;
and
second routing means for directing the second optical signal from the second port to the first port, while preventing signals comprising at least one wavelength channel from the second set of wavelength channels from passing thereto.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 09/930,266Filed 16 Aug 2001 · continuation in part
Priority: 20 Aug 1999
Published: US 2001/0053022 A120 Dec 2001
Granted: 1 Jul 2003
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

H01S 3/06754
Fibre lasers: fibre amplifiers
G02F 1/093
Based on magneto-optical elements, e.g. exhibiting Faraday effect: used as non-reciprocal devices, e.g. optical isolators, circulators
G02B 6/2746
With polarisation selective and adjusting means: comprising non-reciprocal devices, e.g. isolators, FRM, circulators, quasi-isolators
G02F 2201/17
Constructional arrangements not provided for in groups G02F1/00 - G02F7/00: multi-pass arrangements, i.e. arrangements to pass light a plurality…

Family

Application09/377,692Parent of this continuation-in-part · filed 20 Aug 1999
Application09/558,848Parent of this continuation-in-part · filed 27 Apr 2000
Application09/645,862Parent of this continuation-in-part · filed 24 Aug 2000
US 6,268,954 B1Parent of this continuation-in-part · filed 31 Jul 2001
US 2001/0053022 A1Pre-grant publication · published 20 Dec 2001
US 6,587,266 B2This patent

From the US filing history. Foreign family members aren’t listed.