Itf Optical Technologies Inc.

Itf Laboratories Inc.

Denis-Alexandre Brulotte

François Seguin

François Gonthier

Xavier Daxhelet

Alexandre Wetter

Pierre Martineau

Julien Tremblay

Claude Deslisle

Denis Bouchard

Patrick Cigana

Pascal Octeau

Sébastien Allard

Francois Seguin

Sebastien Allard

An all-fiber, phase controlled interferometer device is disclosed as well as its method of manufacture. This device is suitable for use in an optical DPSK demodulation system. It is comprised of two optical fiber couplers, each having two input and two output ports and two branches between the couplers of unequal length. The couplers have a splicing ratio of 50% over the wavelength operating range of the device. The two branches between the couplers are shaped to provide one bit of delay between the branches and are also shaped to make a compact device. Also, the two branches are formed in such a manner as to minimize birefringence in the device. In addition, a fiber heater is provided to heat the longer branch so as to obtain phase control of the interferometer. The method of producing such a device is also disclosed.

All-fiber phase controlled delay interferometer and method of making the same

A packaging device for protectively enclosing an optical component in a substantially clean and anhydrous environment without imparting undue mechanical stresses on the optical component and adjacent segments of optical fiber coupled thereto. An intermediate component is used in combination with a sealing material for sealing the fiber aperture of a protective housing while allowing an optical fiber to extend therethrough. The protective housing is made out of a material having a coefficient of thermal expansion that closely matches that of the optical fiber. A chain of material CTE that includes the CTE of the intermediate component is used in order to circumvent the need for a sealing material having a high melting temperature. The packaging device is also designed so as to reduce water ingress by optimizing the configuration of the sealing component and adjacent structures.

Optical component packaging device

Growing community of inventors

Montreal, Canada

Denis-Alexandre Brulotte