Nkt Photonics A/s

Leica Microsystems Cms Gmbh

Carsten L Thomsen

Thomas Tanggaard Alkeskjold

Thomas Vestergaard Andersen

Jeppe Johansen

Thomas Feuchter

Christian Jakobsen

Jens Kristian Lyngsøe

Martin Dybendal Maack

Kim G Jespersen

Martin Erland Vestergaard Pedersen

Casper Laur Byg

Erik B Thomsen

Ole Bang

Frederik Donbaek Nielsen

Casper Larsen

Volker Seyfried

Hilmar Gugel

Christian Jacobsen

Thomas Tanggard Alkeskjold

Peter Morten Moselund

Weidong Sheng

Sascha Hauser

Eberhard Riedle

Maximilian Bradler

Simon Toft Sørensen

Simon Toft Sorensen

Simon Toft SØRENSEN

A method of making a microstructured optical fiber including loading the core and cladding materials of the fiber with hydrogen and deuterium at a loading temperature; annealing the fiber at a selected temperature T; pumping the fiber with radiation; and reducing the temperature of the fiber and storing the fiber at the reduced temperature before the step of pumping the fiber; and wherein the method allows the hydrogen and the deuterium to become bound to the core material and the cladding material.

Lifetime extending and performance improvements of optical fibers via loading

A Photonic Crystal Fiber (PCF) a method of its production and a supercontinuum light source comprising such PCF. The PCF has a longitudinal axis and includes a core extending along the length of said longitudinal axis and a cladding region surrounding the core. At least the cladding region includes a plurality of microstructures in the form of inclusions extending along the longitudinal axis of the PCF in at least a microstructured length section. In at least a degradation resistant length section of the microstructured length section the PCF includes hydrogen and/or deuterium. In at least the degradation resistant length section the PCF further includes a main coating surrounding the cladding region, which main coating is hermetic for the hydrogen and/or deuterium at a temperature below T, wherein Tis at least about 50° C., preferably 50° C.<T<250° C.

Photonic crystal fiber, a method of production thereof and a supercontinuum light source

A supercontinuum light source includes a microstructured optical fiber, and a feeding unit arranged for feeding pump pulses to the microstructured optical fiber, wherein the feeding unit comprises a picosecond laser and one or more amplifiers, wherein the microstructured optical fiber is a silica fiber wherein at least a part of the core being of silica or doped silica, and including a core including core material and a cladding surrounding the core, and at least the core material is loaded with deuterium to have an OD absorption peak around 1870 nm, wherein the feeding unit is spliced to the microstructured optical fiber.

Supercontinuum light source

A microstructured optical fiber for generating supercontinuum light. The optical fiber includes a core and a cladding region surrounding the core. The optical fiber includes a first fiber length section, a second fiber length section as well as an intermediate fiber length section between said first and second fiber length sections. The first fiber length section has a core with a first characteristic core diameter larger than about 7 μm. The second fiber length section has a core with a second characteristic core diameter, smaller than said first characteristic core diameter. The intermediate length section of the optical fiber includes a core which is tapered from said first characteristic core diameter to the second characteristic core diameter over a tapered length. Also, a supercontinuum light source including an optical fiber and a pump light source.

Microstructured optical fiber, supercontinuum light source comprising microstructured optical fiber and use of such light source

A supercontinuum light source can include a seed laser arranged to provide seed pulses with a pulse frequency F; a pulse frequency multiplier (PFM) arranged to multiply the seed pulses by converting pulses having the pulse frequency Fto pump pulses with a pulse frequency F, where Fis larger than F; and a non-linear element arranged to receive said pump pulses and convert said pump pulses to pulses of supercontinuum light. The PFM can further include a splitter for splitting pulses into first and second sub beams each having the same pulse frequency, where the PFM is configured such that the sub beams experience different delays; and a combiner for combining said first and second sub beams into a beam having the pulse frequency that is greater than said same pulse frequency. The splitter can have an uneven splitter ratio.

A Photonic Crystal Fiber (PCF) a method of its production and a supercontinuum light source comprising such PCF. The PCF has a longitudinal axis and includes a core extending along the length of said longitudinal axis and a cladding region surrounding the core. At least the cladding region includes a plurality of microstructures in the form of inclusions extending along the longitudinal axis of the PCF in at least a microstructured length section. In at least a degradation resistant length section of the microstructured length section the PCF includes hydrogen and/or deuterium. In at least the degradation resistant length section the PCF further includes a main coating surrounding the cladding region, which main coating is hermetic for the hydrogen and/or deuterium at a temperature below T, wherein Tis at least about 50&#xb0; C., preferably 50&#xb0; C.&#x3c;T&#x3c;250&#xb0; C.

The invention relates to a supercontinuum light source comprising a microstructured optical fiber and a pump light source. The microstructured optical fiber comprises a core and a cladding region surrounding the core, as well as a first fiber length section, a second fiber length section and an intermediate fiber length section between said first and second fiber length sections. The first fiber length section comprises a core with a first characteristic core diameter. The second fiber length section comprises a core with a second characteristic core diameter, smaller than said first characteristic core diameter, where said second characteristic core diameter is substantially constant along said second fiber length section. The intermediate length section of the optical fiber comprises a core which is tapered from said first characteristic core diameter to said second characteristic core diameter over a tapered length.

Supercontinuum light source comprising tapered microstructured optical fiber

A fluorescence measurement system comprising a broadband light source and acousto-optical tunable filter (AOTF) controlled by a control unit using an acoustic RF signal provided by a Voltage Controlled Oscillator (VCO).

Tunable filter including an angular dispersive element for a broad band source

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Virum, Denmark

Carsten L Thomsen